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GB1352535A - Door fastening system for an electrical apparatus - Google Patents

Door fastening system for an electrical apparatus

Info

Publication number
GB1352535A
GB1352535A GB3968671A GB3968671A GB1352535A GB 1352535 A GB1352535 A GB 1352535A GB 3968671 A GB3968671 A GB 3968671A GB 3968671 A GB3968671 A GB 3968671A GB 1352535 A GB1352535 A GB 1352535A
Authority
GB
United Kingdom
Prior art keywords
switching means
fastening
coil
bolt
door
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.)
Expired
Application number
GB3968671A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu General Ltd
Aerojet Rocketdyne Holdings Inc
Original Assignee
General Corp
Gencorp Inc
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
Application filed by General Corp, Gencorp Inc filed Critical General Corp
Publication of GB1352535A publication Critical patent/GB1352535A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/6414—Aspects relating to the door of the microwave heating apparatus
    • H05B6/6417—Door interlocks of the microwave heating apparatus and related circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/022—Latches

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Electric Ovens (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)

Abstract

1352535 Control systems for microwave heating apparatus GENERAL CORP 24 Aug 1971 [31 Aug 1970 1 Oct 1970] 39686/71 Heading H2H [Also in Divisions E2 and F2] A door fastening system for an electrical apparatus comprises a solenoid operated switch having contacts 1a and 1b connected in a selected electrical circuit of the electrical apparatus, first and second switching means 2, 3 connected in an energizing circuit for the solenoid, an electromagnet coil 4, for connection to a power supply through the first switching means 2 and a fastening operable by energization of the coil to fastening position, the second switching means 3 being closed by the fastening when operative. As shown in Fig. 5, the fastening comprises a bolt 22 movable against the action of a spring 24 to fasten the door when the coil 4 is energized. A lateral extension of the bolt flexes a member 26 to move a knob 27 to operate the switching means 3. As shown in Fig. 6, the fastening comprises a pivoted hook bolt 28 moved by an electromagnetic core 23 against the action of a spring 35 when the coil 4 is energized so that a hook 30 engages in a recess 32 on the door. The switching means is operated by a portion 36 of the bolt engaging a projection 27 of the means. The bolt may be released by de-energizing the coil or by pressing an emergency button 39 to open a switch 9 in series with the switching means 3. Fig. 4 shows a circuit for a microwave oven having a timer 7, a starter switch 8, emergency stop switches 6, 9, a magnetron cooler fan 10 and a magnetron stirrer 11. The contacts of the timer comprise the switching means 2. the circuit being operative only when the door is closed and the switching means 3 is closed.
GB3968671A 1970-08-31 1971-08-24 Door fastening system for an electrical apparatus Expired GB1352535A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7615070 1970-08-31
JP8646870 1970-10-01

Publications (1)

Publication Number Publication Date
GB1352535A true GB1352535A (en) 1974-05-08

Family

ID=26417302

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3968671A Expired GB1352535A (en) 1970-08-31 1971-08-24 Door fastening system for an electrical apparatus

Country Status (5)

Country Link
US (1) US3823294A (en)
CA (1) CA953392A (en)
DE (1) DE2143412C3 (en)
FR (1) FR2106233A5 (en)
GB (1) GB1352535A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005022930A1 (en) * 2005-05-15 2006-11-16 Gunter Kries Locking/unlocking system for plants, machines and buildings has electrically controlled locking component supplied from manually operated generator and which is operated depending upon state of at least one electrical contact
ITBO20080556A1 (en) * 2008-09-12 2010-03-13 Premark Feg Llc INDUSTRIAL OVEN WITH COMBINED COOKING

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006121A (en) * 1973-06-27 1977-02-01 Matsushita Electric Industrial Co., Ltd. Door latch mechanism controlling switch in microwave oven or the like
JPS5237622B2 (en) * 1973-12-14 1977-09-24
JPS5310154A (en) * 1976-07-16 1978-01-30 Matsushita Electric Ind Co Ltd High frequency heater
US4101750A (en) * 1977-05-31 1978-07-18 Whirlpool Corporation Door interlock system for microwave oven
JPS5725047Y2 (en) * 1977-11-16 1982-05-31
US4219716A (en) * 1978-04-26 1980-08-26 Dca Food Industries, Inc. Bottom entry oven
US4303819A (en) * 1978-04-26 1981-12-01 Dca Food Industries, Inc. Bottom entry oven
AU531479B2 (en) * 1978-12-11 1983-08-25 Sharp K.K. Door latching assembly
FR2449849A1 (en) * 1979-02-23 1980-09-19 Pruines Iseco De Microwave oven door - has hooks engaging in openings uncovered by cooperating movable slides, operation of oven occurring only when correct engagement is sensed
US4345144A (en) * 1980-01-21 1982-08-17 Harper-Wyman Company Safety latch control arrangement for self-cleaning oven
JPS5757495A (en) * 1980-09-22 1982-04-06 Matsushita Electric Ind Co Ltd High frequency heater
JPS57129329A (en) * 1981-02-02 1982-08-11 Matsushita Electric Ind Co Ltd High-frequency heating device
DE3817075C2 (en) * 1988-05-19 1996-09-26 Miele & Cie Door safety switch for a household appliance
US5004276A (en) * 1990-01-22 1991-04-02 The Stanley Works Push to close latch for self-cleaning oven
DE4040424A1 (en) * 1990-12-18 1992-06-25 Miele & Cie Bolt for microwave oven door - has sprung locking slider with solenoid release
US5072974A (en) * 1991-02-07 1991-12-17 The Stanley Works Push to close latch for self-cleaning oven
DE19504574C2 (en) * 1995-02-11 2002-05-02 Miele & Cie Oven with a door locking device for microwave operation
US6060700A (en) * 1996-06-03 2000-05-09 Daniel Perlman Microwave oven with removable storage cassette in dashboard of motor vehicle
KR100272367B1 (en) * 1997-11-15 2000-11-15 구자홍 Structure of openning and locking door of microwave
JP3810250B2 (en) * 2000-04-20 2006-08-16 株式会社フジマック Normal position detection mechanism and latch mechanism of functional part in heating equipment
US6474702B1 (en) 2000-08-16 2002-11-05 France/Scott Fetzer Company Range door lock with nuisance latch
US6902387B2 (en) * 2001-12-07 2005-06-07 Binney & Smith Inc. Crayon maker
DE102004061231B3 (en) * 2004-12-20 2006-04-20 Ellenberger & Poensgen Gmbh A method for locking an oven door during a pyrolytic cleaning process has an electric motor driven latch with vertical latitude
US7009147B1 (en) 2005-01-12 2006-03-07 Maytag Corporation Operational modes for a cooking appliance employing combination cooking technology
GB2439324B (en) * 2006-06-22 2011-12-28 Panasonic Mfg Uk Ltd Domestic appliance with controlled door opening
JP5403790B2 (en) * 2009-02-06 2014-01-29 パナソニック株式会社 High frequency heating device
US20130008895A1 (en) * 2011-07-06 2013-01-10 General Electric Company Double line break
US20160116171A1 (en) * 2014-10-22 2016-04-28 General Electric Company Oven airflow control
CN110094112B (en) * 2018-01-29 2021-07-09 上海松下微波炉有限公司 Locking mechanism and door opening control method
DE102018214393A1 (en) * 2018-08-27 2020-02-27 BSH Hausgeräte GmbH Household microwave

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005022930A1 (en) * 2005-05-15 2006-11-16 Gunter Kries Locking/unlocking system for plants, machines and buildings has electrically controlled locking component supplied from manually operated generator and which is operated depending upon state of at least one electrical contact
ITBO20080556A1 (en) * 2008-09-12 2010-03-13 Premark Feg Llc INDUSTRIAL OVEN WITH COMBINED COOKING

Also Published As

Publication number Publication date
DE2143412C3 (en) 1975-01-30
US3823294A (en) 1974-07-09
DE2143412A1 (en) 1972-03-09
DE2143412B2 (en) 1974-06-12
CA953392A (en) 1974-08-20
FR2106233A5 (en) 1972-04-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee