CA2030266A1 - Lock cylinder with signal transmission between the key and cylinder - Google Patents
Lock cylinder with signal transmission between the key and cylinderInfo
- Publication number
- CA2030266A1 CA2030266A1 CA002030266A CA2030266A CA2030266A1 CA 2030266 A1 CA2030266 A1 CA 2030266A1 CA 002030266 A CA002030266 A CA 002030266A CA 2030266 A CA2030266 A CA 2030266A CA 2030266 A1 CA2030266 A1 CA 2030266A1
- Authority
- CA
- Canada
- Prior art keywords
- key
- lock cylinder
- coil
- core
- locking mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
- G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
- G07C2009/00777—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by induction
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lock And Its Accessories (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
LOCK CYLINDER WITH SIGNAL TRANSMISSION BETWEEN THE KEY AND CYLINDER
The invention relates to a lock cylinder with an associated key which, apart from its mechanical locking function, also allows the inductive transmission of an electric signal between the key and the lock cylinder, which can e.g. be used for the electronic identification of the key. The signal transmission is brought about by a coil (21) in the key and a coil (16) in the lock cylinder, which are arranged in such a way that their cores (22, 24 respectively), together with corresponding legs (15.1, 15.2) form a common, closed core for both coils in two positions of the rotary lock cylinder (12) differing by 180°. The reading legs (15.1, 15.2) are so arranged in the bore for the lock cylinder (12), that the core (22) of the key coil (21) slides between them during key insertion and is posi-tioned between them when the key is completely inserted. This not only permits a signal transmission when the key is completely inserted, but also during its insertion process.
LOCK CYLINDER WITH SIGNAL TRANSMISSION BETWEEN THE KEY AND CYLINDER
The invention relates to a lock cylinder with an associated key which, apart from its mechanical locking function, also allows the inductive transmission of an electric signal between the key and the lock cylinder, which can e.g. be used for the electronic identification of the key. The signal transmission is brought about by a coil (21) in the key and a coil (16) in the lock cylinder, which are arranged in such a way that their cores (22, 24 respectively), together with corresponding legs (15.1, 15.2) form a common, closed core for both coils in two positions of the rotary lock cylinder (12) differing by 180°. The reading legs (15.1, 15.2) are so arranged in the bore for the lock cylinder (12), that the core (22) of the key coil (21) slides between them during key insertion and is posi-tioned between them when the key is completely inserted. This not only permits a signal transmission when the key is completely inserted, but also during its insertion process.
Description
2~3~2~6 L~CK CYLDNDER WDrH SIGNAL TRAN9MISSION BETWEEN THE KEY AND CYLDNDER
The invention is in the field of locking devices and relate~ to a lock cylinder with a key according to the preamble of claim 1, in which an electric signal can be transmitted between the key and the lock cylinder.
In an age with ever increasing needs for security and ccntr~l, a key is no longer an ade~uate identification for authorization to enter a secure area.
Thus, access cannot be time-limited, if the key is the sole access-allowing means. In order to obviate this problem, attempts have already been made in different ways to link with the phys~cal Jock cylinder and key, an elec L ~.ic locking with correspcnding elect mnic identification of the accesg-requester.
The probJem of the present invention is to obtain such a link and where, despite the additional electmnic identification, on the part of the access-reqyester cnly a key is required as the physical access means and the anly access-creating action involves turning the key in the lock cylinder. Thus, in other words, electronic signals are transmitted from the key to the lock cyl~nder. Transmission nust be possible in two clearly defined lock cylin-der positi4ns (lock unlocked and lock locked). Transmissian is to take place during the insertion of the key into the lock cylinder, so that the electronic anawer to the signals, e.g. a release of the mechanical locking system, already exists when the key has been completely inserted. The transmissi4n mu~t be able to transmit low current or voltage valne signals and must al30 functian in a completely satisfactory manner if a force ccm-ponent at right angles to the insertion direction acts on the key during insertian.
This prcblem ~8 solved by a key and a lock cylinder which, according to the characterizing part of claim 1, are provide~ with means allowing an inductive transmissiom of an electric signal between the key and the lock cylinder. The inventive locking mechanism is e~plained by means of the ;~ following drawings, wherein sh~w:
Fig. 1 A key and a lock cylinder with the inventive inductive tran-omi~sion.
Fig. 2 A dlagran of the invemtive transmission.
~ ' .
`' ~, ' '', : '` ` ' , ` ~ ' .'- .' ,' ` , '` , ' ' ~Q3~
Fig. 3 A variant of the inventive locking means with an arcuate lock cylinder coil cors.
Fi~. 1 shows h~w the inductive tran~mission means are integrated into the lock cylinder 1 and the key 2. The lock cylinder 1 coTprises a stationary part 11 and a lock cylinder 12 r~tating in a corresponding ro md cpening of said stationary part 11. That part of the lock cylinder 12 which faces the insertion opening for the key, is subdivided by a through radial slot 13 into two portions. Through said slot 13 the key is inserted in the lock cyl~nder 1. In the lock cylinder 1 a transmission yoke 14 is positioned 1~ in such a way that it so embraces the part of the lock cylinder 12 providedwith the slot 13, that two parallel reading legs 15.1 and 15.2 face one another on the legs 14.1 and 14.2 of the transmission yoke 14 and are positioned on the inner circumference of the opening made in the stationary part 11 of the lock cylinder 1 for the lock cylinder 12 and extend into the vicinity of the key insertion cpening. A lock cylinder coil 16 (primary coil) is wound onto the central portion 14.3 of the transmission yoke 14, which consequently forms the core of the lock cylinder coil 16. For evaluating the induced signal, the lock cylinder coil 16 is interconnected with a corresponding, not shown reading electronics.
The key 2 oon~ains a key coil 21 (secondary coil) with a core 22, which is positianed at right angles to the insertion direction A of the ~ey 2 in the lock cylinder 1. The coil2L is so positioned in the key 2 that, if the key 2 is inserted as far as possible into the lock cylinder 1, it is located in the vicinity of the ends of the reading legs 15.1 and 15.2 remote fron the insertion opening. The key 1 also oontains mRans (signal generator) enabling an electric signal to be supplied to the Xey coil 21, although this i9 not expressly shown in the drawing.
The lock cylinder 12 has two clearly defined positions (lock unlocked and lock locked), which differ fron ane another by half a tu m . The lock is designed in such a way that in both defined positians of the lock cylinder 12, the key 2 is so inserted in the stationary lock cylinder part 11, that the key coil 21 is pcsitianed between the reading legs 15.1 and 15.2. In .` .' . ' ',' ' , , ' ' . ' . ' , ~ . ':
' ~' ' ' ' ' ' . '.' " ' '. ' . .
~'`' " ' ' ' ~ ` "' ' ' . ' ' :
.~ . , ,, ' . ' .
. ' . ' . ~, , ' ., 2~3~26~
both these positians the di~tance between the ends of the core 22 of the key ooil 21 and the reading legs lS.1 and 15.2 is so small that the core 22 of the key coil 21, together with the reading legs 15.1 and 15.2 and the transnis6ion yoke 14 becomes the closed, oommon core for both the coils 16 and 21. An electric signal applied to the key coil 21 then produces a magnetic field in the comnon oore and cansequently induces a oorresponding signal in the lock cylinder coil 16.
When the key 2 is inserted in the lock cylinder 1, the key coil 16 slides alang the reading legs 15.1 and lS.2. Both during this insertion time and whenever the key is completely inserted, a signal transmissian is possible.
It is also conceivable to interchange the functions of the primary key coil 21 and the se~oDl~ry lock cylinder coil 16, so that the electronics of the lock cylinder, via the lock cyl~nder coil can influence the key signal generator.
The diagrammatic fig. 2 serves to explain the quantities of the inventive arrangeTent an which is dependent the intensity of the signal induced in the lDck cyl~nder coil 16 and, as a oansequence thereof, the optimun design for the inductive transmission means.
m e transnissian quality is mainly dependent on the diameter and number of tu m s of the two ooils 16 and 21, but these are virtually predeternined by the fact that it is necessary to house the coils in a lock cylinder and a key, whose size should not vary frcn oanventional canstructions. In adaitian, the degree of coupling is dependent on the core material, whose magnetic permeability should be as high as possible.
The degree of ooupling is also dependent on the length of the common oore of the two ooils 16 and 21, which is formed from the transmission yoke 14, the reading legs 15.1 and lS.2 and the core 22 of the key ooil 21. This length is, acoording to fig. 2, the sun of the distances a and b. The intensity of the signal induced in the lock cylinder coil 16 is W r~x-imately ~nversely proportional to the length of the common oore, i.e. is ?
'i . ' : , ,. . , . ' '"' ~ , , . ~ ' ' .
,:, '' : ' ' ' .
. . . ~ . , 203~2~6 at a m2ximum when the comnan oore is at its shortegt. However, this means that the intensity of the induced signal ig dependent on the actual inser-tion dqpth of the key. The highest i~tensity of the induced signal is reached when the core of the key coil is Located at that point between the reading leg~ 15.1 d 15.2 frnn which there is a m~nimun distance to the legs 14.1 ~nd 14.2 of the tran~mission yoke 14. However, in order to be Dble to fully utilize the a~vantage of the inventive arrangement, which peDnits the reading in of the key signal during key insertion, the reading elect m nics in the lcck cylinder must be designed in such a way that they are able to reccgnize as such the higher length of the comman core in the positian in which the key coil 21 first oomes to rest between the reading legs lS.l and 15.2. ~ ;~
It can also be proved that the intensity of the induced signal is sensi-tively dependent on the swm 11 + 12 f the two distances between the core i5 22 of the key coil 21 and the reading legs lS.l and 15.2, but not on their rel~tive quantitles 11 or 12. When the key is inserted the two air gaps 11 and 12 act in inversely praportional manner. Thus, if one increases, the other decre~ses by the 8ame amount, 80 that the air gap is always e~yally large, even if the key i~ moved between the reading leg~ in the ~0 direction of the key coil axi8. Thu~, the ..~.etic re8i8tance of the ; arrangement renoins ~pproxinately the s~me, i.e. it is constant.
The 8U~ 12 can be mininized by a correspcnding precise manufacture of the lDck cylinder and key. If the key and the lock cylinder are manufac-tured acoording to the standard rules of the ~rt, the key clearance in the lock cylinder ls such that a hey signal of an ~cceptable e~ner~y level can induce a lock cylinder signal, which oan be read without diffioulty by an acceptable reception electronics. ~ -. .
The relative quantities 11 or 12 are dependent on the position of the key 2 ~etween the re~ding legs 15.1 and 15.2, which is in tu m dependent on which forces directed radially to the lcck cylinder axis act on the key during insertion. In other words, the transnitted signal i8 not dependent on how the key is inserted in the lock cylinder, which is very advantageous, becau~e it woull be very diffioult to influence the sane by oorrespcnding 2~3~
mean8 on the lock cylinder or on the key.
Fig. 3 shcws another variant of the inventive Jocking mechanism, in which the core 14 of the lock cylinder coil 15 is arcuate, as opposed to the angular canstruction in the other drawings. This nakes it possible to limit the core lRngth to a minimun.
,~. : ~ .
.. : : : .
, . : :
: ~
The invention is in the field of locking devices and relate~ to a lock cylinder with a key according to the preamble of claim 1, in which an electric signal can be transmitted between the key and the lock cylinder.
In an age with ever increasing needs for security and ccntr~l, a key is no longer an ade~uate identification for authorization to enter a secure area.
Thus, access cannot be time-limited, if the key is the sole access-allowing means. In order to obviate this problem, attempts have already been made in different ways to link with the phys~cal Jock cylinder and key, an elec L ~.ic locking with correspcnding elect mnic identification of the accesg-requester.
The probJem of the present invention is to obtain such a link and where, despite the additional electmnic identification, on the part of the access-reqyester cnly a key is required as the physical access means and the anly access-creating action involves turning the key in the lock cylinder. Thus, in other words, electronic signals are transmitted from the key to the lock cyl~nder. Transmission nust be possible in two clearly defined lock cylin-der positi4ns (lock unlocked and lock locked). Transmissian is to take place during the insertion of the key into the lock cylinder, so that the electronic anawer to the signals, e.g. a release of the mechanical locking system, already exists when the key has been completely inserted. The transmissi4n mu~t be able to transmit low current or voltage valne signals and must al30 functian in a completely satisfactory manner if a force ccm-ponent at right angles to the insertion direction acts on the key during insertian.
This prcblem ~8 solved by a key and a lock cylinder which, according to the characterizing part of claim 1, are provide~ with means allowing an inductive transmissiom of an electric signal between the key and the lock cylinder. The inventive locking mechanism is e~plained by means of the ;~ following drawings, wherein sh~w:
Fig. 1 A key and a lock cylinder with the inventive inductive tran-omi~sion.
Fig. 2 A dlagran of the invemtive transmission.
~ ' .
`' ~, ' '', : '` ` ' , ` ~ ' .'- .' ,' ` , '` , ' ' ~Q3~
Fig. 3 A variant of the inventive locking means with an arcuate lock cylinder coil cors.
Fi~. 1 shows h~w the inductive tran~mission means are integrated into the lock cylinder 1 and the key 2. The lock cylinder 1 coTprises a stationary part 11 and a lock cylinder 12 r~tating in a corresponding ro md cpening of said stationary part 11. That part of the lock cylinder 12 which faces the insertion opening for the key, is subdivided by a through radial slot 13 into two portions. Through said slot 13 the key is inserted in the lock cyl~nder 1. In the lock cylinder 1 a transmission yoke 14 is positioned 1~ in such a way that it so embraces the part of the lock cylinder 12 providedwith the slot 13, that two parallel reading legs 15.1 and 15.2 face one another on the legs 14.1 and 14.2 of the transmission yoke 14 and are positioned on the inner circumference of the opening made in the stationary part 11 of the lock cylinder 1 for the lock cylinder 12 and extend into the vicinity of the key insertion cpening. A lock cylinder coil 16 (primary coil) is wound onto the central portion 14.3 of the transmission yoke 14, which consequently forms the core of the lock cylinder coil 16. For evaluating the induced signal, the lock cylinder coil 16 is interconnected with a corresponding, not shown reading electronics.
The key 2 oon~ains a key coil 21 (secondary coil) with a core 22, which is positianed at right angles to the insertion direction A of the ~ey 2 in the lock cylinder 1. The coil2L is so positioned in the key 2 that, if the key 2 is inserted as far as possible into the lock cylinder 1, it is located in the vicinity of the ends of the reading legs 15.1 and 15.2 remote fron the insertion opening. The key 1 also oontains mRans (signal generator) enabling an electric signal to be supplied to the Xey coil 21, although this i9 not expressly shown in the drawing.
The lock cylinder 12 has two clearly defined positions (lock unlocked and lock locked), which differ fron ane another by half a tu m . The lock is designed in such a way that in both defined positians of the lock cylinder 12, the key 2 is so inserted in the stationary lock cylinder part 11, that the key coil 21 is pcsitianed between the reading legs 15.1 and 15.2. In .` .' . ' ',' ' , , ' ' . ' . ' , ~ . ':
' ~' ' ' ' ' ' . '.' " ' '. ' . .
~'`' " ' ' ' ~ ` "' ' ' . ' ' :
.~ . , ,, ' . ' .
. ' . ' . ~, , ' ., 2~3~26~
both these positians the di~tance between the ends of the core 22 of the key ooil 21 and the reading legs lS.1 and 15.2 is so small that the core 22 of the key coil 21, together with the reading legs 15.1 and 15.2 and the transnis6ion yoke 14 becomes the closed, oommon core for both the coils 16 and 21. An electric signal applied to the key coil 21 then produces a magnetic field in the comnon oore and cansequently induces a oorresponding signal in the lock cylinder coil 16.
When the key 2 is inserted in the lock cylinder 1, the key coil 16 slides alang the reading legs 15.1 and lS.2. Both during this insertion time and whenever the key is completely inserted, a signal transmissian is possible.
It is also conceivable to interchange the functions of the primary key coil 21 and the se~oDl~ry lock cylinder coil 16, so that the electronics of the lock cylinder, via the lock cyl~nder coil can influence the key signal generator.
The diagrammatic fig. 2 serves to explain the quantities of the inventive arrangeTent an which is dependent the intensity of the signal induced in the lDck cyl~nder coil 16 and, as a oansequence thereof, the optimun design for the inductive transmission means.
m e transnissian quality is mainly dependent on the diameter and number of tu m s of the two ooils 16 and 21, but these are virtually predeternined by the fact that it is necessary to house the coils in a lock cylinder and a key, whose size should not vary frcn oanventional canstructions. In adaitian, the degree of coupling is dependent on the core material, whose magnetic permeability should be as high as possible.
The degree of ooupling is also dependent on the length of the common oore of the two ooils 16 and 21, which is formed from the transmission yoke 14, the reading legs 15.1 and lS.2 and the core 22 of the key ooil 21. This length is, acoording to fig. 2, the sun of the distances a and b. The intensity of the signal induced in the lock cylinder coil 16 is W r~x-imately ~nversely proportional to the length of the common oore, i.e. is ?
'i . ' : , ,. . , . ' '"' ~ , , . ~ ' ' .
,:, '' : ' ' ' .
. . . ~ . , 203~2~6 at a m2ximum when the comnan oore is at its shortegt. However, this means that the intensity of the induced signal ig dependent on the actual inser-tion dqpth of the key. The highest i~tensity of the induced signal is reached when the core of the key coil is Located at that point between the reading leg~ 15.1 d 15.2 frnn which there is a m~nimun distance to the legs 14.1 ~nd 14.2 of the tran~mission yoke 14. However, in order to be Dble to fully utilize the a~vantage of the inventive arrangement, which peDnits the reading in of the key signal during key insertion, the reading elect m nics in the lcck cylinder must be designed in such a way that they are able to reccgnize as such the higher length of the comman core in the positian in which the key coil 21 first oomes to rest between the reading legs lS.l and 15.2. ~ ;~
It can also be proved that the intensity of the induced signal is sensi-tively dependent on the swm 11 + 12 f the two distances between the core i5 22 of the key coil 21 and the reading legs lS.l and 15.2, but not on their rel~tive quantitles 11 or 12. When the key is inserted the two air gaps 11 and 12 act in inversely praportional manner. Thus, if one increases, the other decre~ses by the 8ame amount, 80 that the air gap is always e~yally large, even if the key i~ moved between the reading leg~ in the ~0 direction of the key coil axi8. Thu~, the ..~.etic re8i8tance of the ; arrangement renoins ~pproxinately the s~me, i.e. it is constant.
The 8U~ 12 can be mininized by a correspcnding precise manufacture of the lDck cylinder and key. If the key and the lock cylinder are manufac-tured acoording to the standard rules of the ~rt, the key clearance in the lock cylinder ls such that a hey signal of an ~cceptable e~ner~y level can induce a lock cylinder signal, which oan be read without diffioulty by an acceptable reception electronics. ~ -. .
The relative quantities 11 or 12 are dependent on the position of the key 2 ~etween the re~ding legs 15.1 and 15.2, which is in tu m dependent on which forces directed radially to the lcck cylinder axis act on the key during insertion. In other words, the transnitted signal i8 not dependent on how the key is inserted in the lock cylinder, which is very advantageous, becau~e it woull be very diffioult to influence the sane by oorrespcnding 2~3~
mean8 on the lock cylinder or on the key.
Fig. 3 shcws another variant of the inventive Jocking mechanism, in which the core 14 of the lock cylinder coil 15 is arcuate, as opposed to the angular canstruction in the other drawings. This nakes it possible to limit the core lRngth to a minimun.
,~. : ~ .
.. : : : .
, . : :
: ~
Claims (10)
1, Locking mechanism comprising a lock cylinder and associated key, characterized in that the lock cylinder and key incorporate transmission means, with the aid of which it is possible to transmit an electric signal between the key and the lock cylinder by inductive transmission, the sum of the air gaps in the magnetic circuit between the key and the lock cylinder with the key inserted remaining substantially constant when the key is manipulated.
2. Locking mechanism according to claim 1, characterized in that a coil (21) with a core (22) is located in the key, that in the lock cylinder is arranged a coil (16) with core (14.3) and that the shape and reciprocal position of the two cores is such that in two clearly defined positions of the rotary lock cylinder (12) they form a closed core common to both coils.
3. Locking mechanism according to claim 2, characterized in that the key coil (21) is designed as a secondary coil and is interconnected with a sig-nal generator, whilst the lock cylinder coil (16) is designed as a primary coil and is interconnected with a corresponding reading electronics.
4. Locking mechanism according to claim 2, characterized in that the lock cylinder coil (16) and the key coil (21) are wired in such a way that they can serve both as primary coils and as secondary coils and are corres-pondingly wired.
5. Locking mechanism according to one of the claims 2 to 4, characterized in that at both ends of the core (14) of the lock cylinder coil (16) are so fixed two reading legs (15.1, 15.2), that during the insertion of the key the core (22) of the key coil (21) slides between them and, when the key is completely inserted, is positioned between them.
6. Locking mechanism according to one of the claims 2 to 5, characterized in that the core (14) of the lock cylinder coil (16) 80 surrounds the rotary lock cylinder, that the reading legs (15.1, 15.2) are positioned facing on- another on the internal diameter of the bore in the stationary lock cylinder part (11) in which the lock cylinder (12) turns s and form part of the surface of said bore.
7. Locking mechanism according to claim 6, characterized in that the core (14) of the lock cylinder coil (16) is arcuate or is shaped like three legs joined together at an angle.
8. Key for the locking mechanism of one of the preceding claims, charac-terized in that the magnetic circuit has a part (21, 22) enabling infor-mation and/or energy to be transmitted between the lock cylinder and the key.
9. key according to claim 8, characterized in that the part of the mag-netic circuit has a coil (21).
10. Key according to claim 9, characterized in that the part of the mag-netic circuit has a coil (21) with a ferromagnetic material (22) in the coil interior, the ferromagnetic material extending from one narrow side of the key shank to the other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH04516/89-2 | 1989-12-15 | ||
| CH4516/89A CH680082A5 (en) | 1989-12-15 | 1989-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2030266A1 true CA2030266A1 (en) | 1991-06-16 |
Family
ID=4277559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002030266A Abandoned CA2030266A1 (en) | 1989-12-15 | 1990-11-19 | Lock cylinder with signal transmission between the key and cylinder |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPH03191186A (en) |
| AU (1) | AU6597290A (en) |
| CA (1) | CA2030266A1 (en) |
| CH (1) | CH680082A5 (en) |
| DE (1) | DE4036575A1 (en) |
| ES (1) | ES2027861A6 (en) |
| FI (1) | FI906136A (en) |
| FR (1) | FR2656028A1 (en) |
| GB (1) | GB2239673A (en) |
| IT (1) | IT1244026B (en) |
| NL (1) | NL9002730A (en) |
| NO (1) | NO905342L (en) |
| SE (1) | SE9003996L (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9100336D0 (en) * | 1991-01-08 | 1991-02-20 | Chubb Lips Nederland Bv | Locks |
| AT400256B (en) * | 1992-03-02 | 1995-11-27 | Evva Werke | POWER SUPPLY |
| DE4207161A1 (en) * | 1992-03-06 | 1993-09-09 | Winkhaus Fa August | ELECTRONIC LOCKING CYLINDER |
| JPH0622477U (en) * | 1992-05-29 | 1994-03-25 | エスエムケイ株式会社 | Electronic lock device |
| DE4308372A1 (en) * | 1993-03-16 | 1994-09-22 | Siemens Ag | Lock system which can be remote-controlled by means of radio, light or ultrasonic sound |
| DE4329315C1 (en) * | 1993-08-31 | 1994-12-08 | Siemens Ag | System for the contactless transmission of data or energy |
| DE9314433U1 (en) * | 1993-09-23 | 1994-01-05 | Siemens AG, 80333 München | System for contactless data or energy transmission |
| DE4440825A1 (en) * | 1994-11-15 | 1996-05-23 | Amazone Machines Agricoles Sa | Mowing, scarifying and / or collecting device |
| US6564601B2 (en) | 1995-09-29 | 2003-05-20 | Hyatt Jr Richard G | Electromechanical cylinder plug |
| JPH09100666A (en) * | 1995-10-05 | 1997-04-15 | Tokai Rika Co Ltd | Key cylinder |
| DE19711588A1 (en) * | 1997-03-20 | 1998-09-24 | Euchner Gmbh & Co | Safety switch |
| US6588243B1 (en) | 1997-06-06 | 2003-07-08 | Richard G. Hyatt, Jr. | Electronic cam assembly |
| ITMI20020023A1 (en) * | 2002-01-09 | 2003-07-09 | Iseo Serrature Spa | ELECTRICITY TRANSFER DEVICE AND PROCEDURE BETWEEN A KEY AND THE CYLINDER OF A LOCK |
| PT2565850E (en) | 2011-08-29 | 2014-08-25 | Assa Abloy Schweiz Ag | Mechatronic closing device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2933453C2 (en) * | 1979-08-17 | 1988-03-24 | Anetseder, Leopold, 8000 München | Locking device consisting of a lock operated with a key |
| DE3402737C1 (en) * | 1984-01-27 | 1985-08-01 | Angewandte Digital Elektronik Gmbh, 2051 Brunstorf | Mutual information transmission device |
| GB8627241D0 (en) * | 1986-11-14 | 1986-12-17 | Chubb Lips Nederland Bv | Identification token |
-
1989
- 1989-12-15 CH CH4516/89A patent/CH680082A5/de not_active IP Right Cessation
-
1990
- 1990-11-12 AU AU65972/90A patent/AU6597290A/en not_active Abandoned
- 1990-11-16 DE DE4036575A patent/DE4036575A1/en not_active Withdrawn
- 1990-11-19 CA CA002030266A patent/CA2030266A1/en not_active Abandoned
- 1990-11-23 ES ES9002992A patent/ES2027861A6/en not_active Expired - Lifetime
- 1990-11-23 IT IT02217990A patent/IT1244026B/en active IP Right Grant
- 1990-11-28 FR FR9014858A patent/FR2656028A1/en not_active Withdrawn
- 1990-11-29 JP JP2326133A patent/JPH03191186A/en active Pending
- 1990-12-11 NO NO90905342A patent/NO905342L/en unknown
- 1990-12-12 NL NL9002730A patent/NL9002730A/en not_active Application Discontinuation
- 1990-12-13 GB GB9027040A patent/GB2239673A/en not_active Withdrawn
- 1990-12-13 FI FI906136A patent/FI906136A/en not_active Application Discontinuation
- 1990-12-14 SE SE9003996A patent/SE9003996L/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| NL9002730A (en) | 1991-07-01 |
| SE9003996L (en) | 1991-06-16 |
| IT9022179A0 (en) | 1990-11-23 |
| IT9022179A1 (en) | 1992-05-23 |
| FR2656028A1 (en) | 1991-06-21 |
| GB2239673A (en) | 1991-07-10 |
| DE4036575A1 (en) | 1991-06-20 |
| NO905342D0 (en) | 1990-12-11 |
| FI906136A (en) | 1991-06-16 |
| AU6597290A (en) | 1991-06-20 |
| JPH03191186A (en) | 1991-08-21 |
| CH680082A5 (en) | 1992-06-15 |
| IT1244026B (en) | 1994-06-28 |
| GB9027040D0 (en) | 1991-02-06 |
| ES2027861A6 (en) | 1992-06-16 |
| NO905342L (en) | 1991-06-17 |
| SE9003996D0 (en) | 1990-12-14 |
| FI906136A0 (en) | 1990-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |