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US2369185A - Rectifier - Google Patents

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Publication number
US2369185A
US2369185A US511395A US51139543A US2369185A US 2369185 A US2369185 A US 2369185A US 511395 A US511395 A US 511395A US 51139543 A US51139543 A US 51139543A US 2369185 A US2369185 A US 2369185A
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United States
Prior art keywords
layer
insulating
base plate
counter
rectifier
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Expired - Lifetime
Application number
US511395A
Inventor
Murray F Skinker
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STC PLC
Federal Telephone and Radio Corp
Original Assignee
Standard Telephone and Cables PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to BE475135D priority Critical patent/BE475135A/xx
Priority to BE474203D priority patent/BE474203A/xx
Priority to US507671A priority patent/US2434967A/en
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to US511395A priority patent/US2369185A/en
Priority to GB20345/44A priority patent/GB587020A/en
Priority to GB20344/44A priority patent/GB586984A/en
Application granted granted Critical
Publication of US2369185A publication Critical patent/US2369185A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/02—Containers; Seals
    • H01L23/04—Containers; Seals characterised by the shape of the container or parts, e.g. caps, walls
    • H01L23/053—Containers; Seals characterised by the shape of the container or parts, e.g. caps, walls the container being a hollow construction and having an insulating or insulated base as a mounting for the semiconductor body
    • H01L23/057—Containers; Seals characterised by the shape of the container or parts, e.g. caps, walls the container being a hollow construction and having an insulating or insulated base as a mounting for the semiconductor body the leads being parallel to the base
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L27/00—Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
    • A23L27/70—Fixation, conservation, or encapsulation of flavouring agents
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S257/00—Active solid-state devices, e.g. transistors, solid-state diodes
    • Y10S257/909—Macrocell arrays, e.g. gate arrays with variable size or configuration of cells

Definitions

  • Another object of this invention is to provide a'full-wave selenium type rectierwhich can be manufactured and assembled from small, easily fabricated parts.
  • a furtherA object of this.invention is to provide a small full-wave selenium rectifier utilizing a minimum number of diil'er'ent parts. f.
  • Fig. 1 is a top plannview illustrating the general appearance of a rectifier in vaccordance with the present invention
  • Fig. 2 is a longitudinal cross-sectional view taken along the line 2-2 of Fig. 1 and drawn to approximately twice the scale of that figure;
  • Fig. 3 is a transverse cross-sectional view taken along the -line 3 3 of Fig. 2;
  • Fig. 4 is an end view, partially in section taken alongthe line H of Fig. 2;
  • Fig. 5 is a top plan view of one of the rectifier parts, drawn to the same scale as Fig. 1;
  • Fig. 6 is a top plan .view of another rectifier
  • Fig. 7 is a circuit diagram illustrating the manner in which the construction in the previous gures is arranged to form a full-wave bridge rectifier
  • the full-wave rectifier ackcording to the present invention is preferably built up of two rectifier units p1aced.backto ⁇ " that it fits between opposite end posts I2 and is formed with opposite longitudinally extending tongues IB and 20 adapted to pass through the longitudinal grooves I4.
  • the tongue 20 may be formed relatively short for positioning purposes only, while the tongue rI8 may extend outwardly beyond the rectier unit to serve as a rectifier lead.
  • 'I'he central rectangular portion of each base plate is covered with a layer of rectifying material such as selenium 22 which, in turn, is covered with an insulating layer 24 which may be formed, for example, of paper.
  • the paper layer 24 is provided with a central opening 26 and counter-electrode alloy 28 is sprayed or otherwise applied to the paper and extends through this opening into contact with the selenium.
  • a contact plate 30 which preferably has acentral opening 32 aligned with the opening through the insulating paper 24.
  • the central opening 32 is of such dimension that the plate contacts the counter-electrode alloy, but at the same time no contact pressure is applied to the central depressed portion 34 of the counter-electrode alloy,
  • a sec- ,ond metal base plate IGa of identical configuration with the base plate I6, but having its longitudinal tongue Ita extending'in a direction oppositelyfto the tongue I8;
  • sulating layer and counter-electrode alloy are applied to the ⁇ base plate lia in a manner identical with the similar layer applied to the base plate I6.
  • Base plates ISand I6'a are built up with intermediate layers on the insulating ybase III" in a similar manner to that described 'above but only in the opposite direction. The entire unit may then be held together by a metal define b1 vWeen them longitudinal grooves I4.
  • a base plate It Upon each insulating base is placed a base plate It, also of gen.
  • This metal 'clamp will contact the outer counter-electrode masses and may be formed with an integral extension 3,8 which will serve as a lead to the rectiscusr as a whole. It will be held against longitudinal movement by the lateral extension of the .v
  • both insulating bases I0 and l' are of identical configuration, as are the individual metal base plates with their superimposed rectifying and insulating layers, and as also are counter-electrode masses, the surrounding metal rectangular, and in which: the. central portions. aswell as the rectangular.
  • Full-wave rectifier comprising, in combina; tion, a pair of rectier units placed back-to-back, each of said units including an insulating base formed with a central portion having a predetermined width andopposite vends having up- .standing portionsforming a relatively naricw groove lying in the same plane as the said central portion, a base plate mountedv on each central portion and being formed with longitudinal tongues iitting into saidv grooves, one tongue' or each base plate extending outwardly of the respective insulating b ases at the same end of the rectifier, whereby said extended tongues may be connected together to form a common terminal, a layer of rectifying material on each base plate, a layer of insulating material having an opening therethrough covering each rectifying layer, a counter-electrode alloy'mass on each insulating layer, extending through said opening to contact the rectifgying layer, a contact plate on each present invention.
  • the rec- .'tier as a whole has been shown generally rec
  • the two could be formed as one piece with the posts or other holding members extending from the four corners in opposite directions. sake of making connections 'to the rectifier, to
  • extension 38 need not be formed on the metal clamp, buta lead could be attached to this metal clamp directly at any suitable point.
  • said contact plates plates are each formed with a central section substantially identical with that of the base plates, and two integral short, longitudinal extending tongues projecting into the grooves in the insulating bases.
  • Full-wave rectier comprising, in combination, a pair of rectier units placed back-t0- back, each of 'said units including an insulating base formed with a central portion having a predetermined width and opposite ends having upstanding portions forming a relatively narrow spective insulating bases at the same end of the v .a layer o!
  • insulating material havingy an opening groove lying in the same plane as the said central portion, a base plate mounted on each ceni tral portion and being formed with longitudinal tongues fitting into said grooves, one tongue of each base plate extendingr outwardly of the revtherethrough covering each rectifying layer, a counter-electrode alloy mass on each insulating layer, extending through saidopening to contact the rectifying layer, a contact plate on each basev plates are also generalLvassenso counter-electrode alloy.
  • said contact plate having an opening therethrough substantially aligned with the ⁇ opening in said insulating lay- ',er, a second base plate of substantially the same configuration as the ilrst base plate lying on 4 .each contact plate, both oi said base plates having one tongue extending outwardly of the insulating bases in a direction oppositely to the tongues on the first base plates, a layer of rectifying material on each of the second base plates, a layer of insulating material having an opening therethrough covering each of these rectifying plates, a counter-electrode alloy mass on each oi these insulating layers extending therethrough said opening, clamping means holding the two rectiner units and their associated parts together, and means forming a common contact for the two last counter-electrode alloy masses.
  • Full-wave rectifier comprising, in combination, a pair of rectler units placed'back-totrai portion and being formed with longitudinal tongues fitting into said grooves, a layer o! rrectifying materialen each base plate, a layer o! insulating material having an openingtherethrough covering each lrectifying layer, a coun- Y ter-electrode alloy mass on each-insulating layer, extending through said opening to contact the rectifying layer, a second base plate ofsub-- stantiallyI the same configuration as the tiret tact the rectiiying ⁇ layer, metallic clamping l means contacting the last counter-electrode back, each of said units including an insulating i base formed with a central portion having a predetermined width and opposite ends having upstanding portions forming a relatively narrow groove lying in the same plane asti-1e said central portion, a base plate mounted on each cenmasses and extending about both rectier units, and lead means connected to each o! the four base plates.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Health & Medical Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Rectifiers (AREA)
  • Electrotherapy Devices (AREA)
  • Thermistors And Varistors (AREA)

Description

Feb. 13, 1945.
M. F. SKINKER RECTIFIER Filed Nov. 23, 1943 IN VEN TOR. MMP/PAY E s/f//wff/P ATTORNEY part; and
Patented rel.- 13, 194s RECTIFIEB Murray F. slanker, Monwlalr, N. J., assigner to Federal Telephone and Radio Corporation, New York, N. Y., a corporation of Delaware Application November z3, 1943, serial No. 511,395 n 9 Claims.
Another object of this invention is to provide a'full-wave selenium type rectierwhich can be manufactured and assembled from small, easily fabricated parts.
A furtherA object of this.invention is to provide a small full-wave selenium rectifier utilizing a minimum number of diil'er'ent parts. f.
With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination Vand arrangement of parts and in the details of construction hereinafter described and claimed.
The invention has been illustrated in its preferred embodiment in the accompanying drawing wherein:
Fig. 1 is a top plannview illustrating the general appearance of a rectifier in vaccordance with the present invention;
Fig. 2 is a longitudinal cross-sectional view taken along the line 2-2 of Fig. 1 and drawn to approximately twice the scale of that figure;
Fig. 3 is a transverse cross-sectional view taken along the -line 3 3 of Fig. 2;
Fig. 4 is an end view, partially in section taken alongthe line H of Fig. 2;
Fig. 5 isa top plan view of one of the rectifier parts, drawn to the same scale as Fig. 1;
Fig. 6 is a top plan .view of another rectifier Fig. 7 is a circuit diagram illustrating the manner in which the construction in the previous gures is arranged to form a full-wave bridge rectifier;
As shown in the drawing, and particularly-in Figs. 1 to 4 inclusive, the full-wave rectifier ackcording to the present invention is preferably built up of two rectifier units p1aced.backto`" that it fits between opposite end posts I2 and is formed with opposite longitudinally extending tongues IB and 20 adapted to pass through the longitudinal grooves I4. The tongue 20 may be formed relatively short for positioning purposes only, while the tongue rI8 may extend outwardly beyond the rectier unit to serve as a rectifier lead. 'I'he central rectangular portion of each base plate is covered with a layer of rectifying material such as selenium 22 which, in turn, is covered with an insulating layer 24 which may be formed, for example, of paper. The paper layer 24 is provided with a central opening 26 and counter-electrode alloy 28 is sprayed or otherwise applied to the paper and extends through this opening into contact with the selenium.
Above the counter-electrode alloy is placed a contact plate 30 which preferably has acentral opening 32 aligned with the opening through the insulating paper 24. The central opening 32 is of such dimension that the plate contacts the counter-electrode alloy, but at the same time no contact pressure is applied to the central depressed portion 34 of the counter-electrode alloy,
this being the point at which contact is made Above the contact plate 30 is positioned a sec- ,ond metal base plate IGa of identical configuration with the base plate I6, but having its longitudinal tongue Ita extending'in a direction oppositelyfto the tongue I8; A selenium layer, in-
sulating layer and counter-electrode alloy are applied to the `base plate lia in a manner identical with the similar layer applied to the base plate I6. Base plates ISand I6'a are built up with intermediate layers on the insulating ybase III" in a similar manner to that described 'above but only in the opposite direction. The entire unit may then be held together by a metal define b1 vWeen them longitudinal grooves I4.
These posts may also extend somewhat laterally of the main part of the base. Upon each insulating base is placed a base plate It, also of gen.
erally rectangular shape havingsuch alength.A
clamp generally designated at 36. This metal 'clamp will contact the outer counter-electrode masses and may be formed with an integral extension 3,8 which will serve as a lead to the rectiiler as a whole. It will be held against longitudinal movement by the lateral extension of the .v
posts In connect the two tongues lland I8 from the base plates I8 'and 'I6' respectively together. and
for this purpose they may be bent toward one another as is more clearly shown in Fig.- 2. The tongues Ita and It'a will be maintained sepaorder to complete the rectier, I prefer to ratei' while the fourth lead is formed by their;-A
, tegral yextension 38 on the surroundingv metal clamp.` lThe circuit forsuch a full-wave rectie'r is indicated more clearly in Fig. 7,.
In order to prevent direct contact uponI the central selenium-contacting portion of the outer clamp may be formed with hollow raised blisters 40 at these two points. Attention is directed to the fact that since both insulating bases I0 and l' are of identical configuration, as are the individual metal base plates with their superimposed rectifying and insulating layers, and as also are counter-electrode masses, the surrounding metal rectangular, and in which: the. central portions. aswell as the rectangular. A Y
i 3. Full-wave rectifier comprising, in combina; tion, a pair of rectier units placed back-to-back, each of said units including an insulating base formed with a central portion having a predetermined width andopposite vends having up- .standing portionsforming a relatively naricw groove lying in the same plane as the said central portion, a base plate mountedv on each central portion and being formed with longitudinal tongues iitting into saidv grooves, one tongue' or each base plate extending outwardly of the respective insulating b ases at the same end of the rectifier, whereby said extended tongues may be connected together to form a common terminal, a layer of rectifying material on each base plate, a layer of insulating material having an opening therethrough covering each rectifying layer, a counter-electrode alloy'mass on each insulating layer, extending through said opening to contact the rectifgying layer, a contact plate on each present invention. For example, while the rec- .'tier as a whole has been shown generally rec- `j tangular, it is obvious that other configurations l may be used.
Instead of utilizing two entirely separate insulating bases, the two could be formed as one piece with the posts or other holding members extending from the four corners in opposite directions. sake of making connections 'to the rectifier, to
form'some of said connections as leads extending outwardly, integral with the base plates, such tongues need not extend beyond the boundaries of y the insulating base and Wire leads could be soldered to the base plates in any desired manner.
l Similarly, the extension 38 need not be formed on the metal clamp, buta lead could be attached to this metal clamp directly at any suitable point.
Accordingly. while I have described above the principles of my invention in connection with a speciiic device, it is to be clearly understood whose bottom lies in .the same plane as the said central portion, a base plate mounted on each central portion and being formed with longitu' dinal tongues iltting into said grooves, one tongue of each base plate extending outwardly of the respective insulating base means at the same end of the rectifier, whereby said extended tongues may be connected togetherto form a common terminal, a layer of rectifying material on each base plate, a layer of insulating material having an opening therethrough covering each rectifying layer,` a counter-electrodel alloy mass on eachv insulating layer extending through said openingto contact the rectifying layer, lead means contacting-the two counter-electrode alloy masses,
and means holding the two recti'er units and their associated parts together.
2. The'coxnbination according to claim- 1, in g 75 which said insulating base means is gencrlLvl f Whilev it is convenient forl thebases in a direction oppositely to the extending tongues on the rst base plates, a layer of rectifycounter-electrode alloy mass, said contact plate having an 'opening therethrough substantially aligned with the opening in said insulating layer, a. second base plate of substantially the same lconfiguration as the first base plate lying on each contact plate, both of said base plates having oneV tongue extending outwardly of the insulating ing material on eachof .the second base plates,
a layer of insulating material having an opening therethrough covering each of these rectifying plates, a counter-electrode alloy mass on each of these insulating layers extending therethrough said opening and metallic. clamping means con- `that this description is made only by way of example and not as a limitation on the scope of my invention as set forth in the objects and the 4 accompanying claims. I 50 tacting the last counter-'electrode alloy masses and extending about both rectifying units.
4. The combination according to claim 3, in I which said last clamping means is formed with an integral protruding contact lug.
5. The combination according to claim 3, in which said contact plates plates are each formed with a central section substantially identical with that of the base plates, and two integral short, longitudinal extending tongues projecting into the grooves in the insulating bases.
6. The combination according to claim 3, in which said metal clamping means is formed with raised hollow blisters substantially aligned with the openings through the insulatingmaterial above the -respective counter-electrode alloy masses. y
7. Full-wave rectier comprising, in combination, a pair of rectier units placed back-t0- back, each of 'said units including an insulating base formed with a central portion having a predetermined width and opposite ends having upstanding portions forming a relatively narrow spective insulating bases at the same end of the v .a layer o! insulating material havingy an opening groove lying in the same plane as the said central portion, a base plate mounted on each ceni tral portion and being formed with longitudinal tongues fitting into said grooves, one tongue of each base plate extendingr outwardly of the revtherethrough covering each rectifying layer, a counter-electrode alloy mass on each insulating layer, extending through saidopening to contact the rectifying layer, a contact plate on each basev plates are also generalLvassenso counter-electrode alloy. mass, said contact plate having an opening therethrough substantially aligned with the` opening in said insulating lay- ',er, a second base plate of substantially the same configuration as the ilrst base plate lying on 4 .each contact plate, both oi said base plates having one tongue extending outwardly of the insulating bases in a direction oppositely to the tongues on the first base plates, a layer of rectifying material on each of the second base plates, a layer of insulating material having an opening therethrough covering each of these rectifying plates, a counter-electrode alloy mass on each oi these insulating layers extending therethrough said opening, clamping means holding the two rectiner units and their associated parts together, and means forming a common contact for the two last counter-electrode alloy masses.
8. Full-wave rectifier comprising, in combination, a pair of rectler units placed'back-totrai portion and being formed with longitudinal tongues fitting into said grooves, a layer o! rrectifying materialen each base plate, a layer o! insulating material having an openingtherethrough covering each lrectifying layer, a coun- Y ter-electrode alloy mass on each-insulating layer, extending through said opening to contact the rectifying layer, a second base plate ofsub-- stantiallyI the same configuration as the tiret tact the rectiiying `layer, metallic clamping l means contacting the last counter-electrode back, each of said units including an insulating i base formed with a central portion having a predetermined width and opposite ends having upstanding portions forming a relatively narrow groove lying in the same plane asti-1e said central portion, a base plate mounted on each cenmasses and extending about both rectier units, and lead means connected to each o! the four base plates.
9. The combination according to claim 8, in
which said metallic clamping means is positioned between and is held against longitudinal movement by the upstanding portions of the two insulating bases.
. MURRAY F. S.
US511395A 1943-10-26 1943-11-23 Rectifier Expired - Lifetime US2369185A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE475135D BE475135A (en) 1943-10-26
BE474203D BE474203A (en) 1943-10-26
US507671A US2434967A (en) 1943-10-26 1943-10-26 Rectifier and method of making the same
US511395A US2369185A (en) 1943-10-26 1943-11-23 Rectifier
GB20345/44A GB587020A (en) 1943-10-26 1944-10-20 Rectifiers and methods of making the same
GB20344/44A GB586984A (en) 1943-10-26 1944-10-20 Rectifiers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US507671A US2434967A (en) 1943-10-26 1943-10-26 Rectifier and method of making the same
US511395A US2369185A (en) 1943-10-26 1943-11-23 Rectifier

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US511395A Expired - Lifetime US2369185A (en) 1943-10-26 1943-11-23 Rectifier

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GB (2) GB586984A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444255A (en) * 1944-11-10 1948-06-29 Gen Electric Fabrication of rectifier cells
US2459787A (en) * 1949-01-25 Metal rectifier bridge
US2486110A (en) * 1943-11-16 1949-10-25 Hartford Nat Bank & Trust Co Combination of two or more than two blocking-layer cells
US2680220A (en) * 1950-06-09 1954-06-01 Int Standard Electric Corp Crystal diode and triode
US2698918A (en) * 1950-11-25 1955-01-04 Int Standard Electric Corp Dry disk rectifier assembled from unperforated rectifier plates
US2758262A (en) * 1952-07-02 1956-08-07 Int Standard Electric Corp Dry contact rectifier
DE1046784B (en) * 1954-01-13 1958-12-18 Westinghouse Brake & Signal Dry rectifier arrangement with two stacks of rectifier elements placed one above the other
DE976919C (en) * 1953-02-07 1964-08-06 Siemens Ag Dry rectifier arrangement, consisting of a stack of rectifier tablets

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1514822A1 (en) * 1964-08-14 1969-06-26 Telefunken Patent Method for manufacturing a semiconductor device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1898321A (en) * 1933-02-21 Electrical rectifier
US1526664A (en) * 1923-10-06 1925-02-17 Dubilier Condenser And Radio C Electrical condenser
US1642688A (en) * 1925-07-14 1927-09-20 Electrad Inc Fixed condenser
US1678826A (en) * 1927-04-26 1928-07-31 Ruben Rectifier Corp Electric-current rectifier
US1900732A (en) * 1931-09-25 1933-03-07 Union Switch & Signal Co Electrical rectifier
US1995200A (en) * 1932-08-30 1935-03-19 Union Switch & Signal Co Manufacture of photo-electric cells
NL204119A (en) * 1939-01-22

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459787A (en) * 1949-01-25 Metal rectifier bridge
US2486110A (en) * 1943-11-16 1949-10-25 Hartford Nat Bank & Trust Co Combination of two or more than two blocking-layer cells
US2444255A (en) * 1944-11-10 1948-06-29 Gen Electric Fabrication of rectifier cells
US2680220A (en) * 1950-06-09 1954-06-01 Int Standard Electric Corp Crystal diode and triode
US2698918A (en) * 1950-11-25 1955-01-04 Int Standard Electric Corp Dry disk rectifier assembled from unperforated rectifier plates
US2758262A (en) * 1952-07-02 1956-08-07 Int Standard Electric Corp Dry contact rectifier
DE976919C (en) * 1953-02-07 1964-08-06 Siemens Ag Dry rectifier arrangement, consisting of a stack of rectifier tablets
DE1046784B (en) * 1954-01-13 1958-12-18 Westinghouse Brake & Signal Dry rectifier arrangement with two stacks of rectifier elements placed one above the other

Also Published As

Publication number Publication date
US2434967A (en) 1948-01-27
GB586984A (en) 1947-04-09
BE474203A (en) 1900-01-01
GB587020A (en) 1947-04-10
BE475135A (en) 1900-01-01

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