GB1371876A - Microwave oven door latch - Google Patents
Microwave oven door latchInfo
- Publication number
- GB1371876A GB1371876A GB3764372A GB3764372A GB1371876A GB 1371876 A GB1371876 A GB 1371876A GB 3764372 A GB3764372 A GB 3764372A GB 3764372 A GB3764372 A GB 3764372A GB 1371876 A GB1371876 A GB 1371876A
- Authority
- GB
- United Kingdom
- Prior art keywords
- door
- latch
- oven
- closed
- energized
- 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
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
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/0911—Hooked end
- Y10T292/0936—Spring retracted
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/1043—Swinging
- Y10T292/1075—Operating means
- Y10T292/1082—Motor
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/175—Bolt releasers
- Y10T292/18—Free-end-engaging means
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electric Ovens (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
Abstract
1371876 Microwave ovens AMANA REFRIGERATION Inc 11 Aug 1972 [7 Sept 1971] 37643/72 Heading H5H [Also in Division E2] When a microwave oven door 68 is closed electrical means locks the door closed whilst the microwave generator is operative. The door 68 carries a pivoted latch 70 having a hooked end 98 retained by a ledge 114 of an opening 94 in the oven casing 82 when the door is closed. The hooked end 98 bears on a resilient lever 92 in this position to actuate an -interlock switch 90. A spring blade 112 biases the latch 70 downwardly. A solenoid 100 is energized on completion of the circuit to the microwave generator to lock the latch 70 in position. In the energized position shown a pivoted pawl 104 bears on spring blade 92 to lock latch 70 in position and prevent opening of door 68. On de-energization the pawl is moved anticlockwise away from blade 92 by solenoid arm 102. In an alternative embodiment the pawl moves in a horizontal plane. A door interlock switch is also provided. In use, the oven can only be energized when both interlock switches and a start switch are closed. The solenoid is operated on oven energization to lock the door 68 in position. Alternative long and short time switches are provided.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17804471A | 1971-09-07 | 1971-09-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1371876A true GB1371876A (en) | 1974-10-30 |
Family
ID=22650949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3764372A Expired GB1371876A (en) | 1971-09-07 | 1972-08-11 | Microwave oven door latch |
Country Status (6)
Country | Link |
---|---|
US (1) | US3733456A (en) |
JP (1) | JPS521496B2 (en) |
CA (1) | CA954592A (en) |
DE (1) | DE2243539C3 (en) |
GB (1) | GB1371876A (en) |
SE (1) | SE375598B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITBO20080556A1 (en) * | 2008-09-12 | 2010-03-13 | Premark Feg Llc | INDUSTRIAL OVEN WITH COMBINED COOKING |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3804442A (en) * | 1972-02-07 | 1974-04-16 | Precision Hardware Inc | Electric door release |
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 | ||
JPS5256523Y2 (en) * | 1974-02-26 | 1977-12-21 | ||
JPS5180534A (en) * | 1974-12-25 | 1976-07-14 | Kazunari Kichama | KOKUMOTSUBICHIKUSO |
US3995899A (en) * | 1975-02-14 | 1976-12-07 | Hobart Corporation | Microwave oven interlock |
US4013312A (en) * | 1975-12-05 | 1977-03-22 | Roper Corporation | Latch mechanism for self-cleaning oven |
JPS52108534A (en) * | 1976-03-09 | 1977-09-12 | Matsushita Electric Ind Co Ltd | High frequency heating device |
US4082078A (en) * | 1976-10-06 | 1978-04-04 | Litton Systems, Inc. | Pyrolytic lock assembly |
JPS5725047Y2 (en) * | 1977-11-16 | 1982-05-31 | ||
SE440383B (en) * | 1978-12-11 | 1985-07-29 | Sharp Kk | DORRLAS device for a cooking stove, in particular a microwave oven |
JPS5743135A (en) * | 1980-08-29 | 1982-03-11 | Matsushita Electric Ind Co Ltd | High frequency heating device |
US4504719A (en) * | 1982-02-22 | 1985-03-12 | General Electric Company | Door latch and method of assembly |
US4457545A (en) * | 1982-05-03 | 1984-07-03 | General Electric Company | Door latch assembly |
JPS59129332A (en) * | 1983-01-14 | 1984-07-25 | Toshiba Corp | High frequency heating and cooking device |
JPS60144006U (en) * | 1984-03-01 | 1985-09-25 | シャープ株式会社 | microwave oven |
DE3817075C2 (en) * | 1988-05-19 | 1996-09-26 | Miele & Cie | Door safety switch for a household appliance |
US6229129B1 (en) * | 2000-04-07 | 2001-05-08 | Bsh Home Appliances Corporation | Switch access guard |
US6997129B2 (en) * | 2002-03-04 | 2006-02-14 | Skeeter Products, Inc. | Apparatus, and associated method, for operating a lid to a hatch |
EP2405136A3 (en) * | 2010-04-15 | 2014-11-26 | Hanchett Entry Systems, Inc. | Electromagnetic energy harvester and a door latch release mechanism as an energy source for the harvester |
DE102011051884A1 (en) * | 2011-07-15 | 2013-01-17 | Rahrbach Gmbh | Closure for closing a door, in particular a device door |
JP6782528B2 (en) * | 2015-01-22 | 2020-11-11 | 理想科学工業株式会社 | Door switchgear |
CN106813275B (en) * | 2017-03-21 | 2023-04-07 | 珠海格力电器股份有限公司 | Microwave interlocking control switch and microwave cooker |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2543214A (en) * | 1947-08-21 | 1951-02-27 | Leslie K Wildberg | Closure operated switch for fuel tanks |
US2754144A (en) * | 1952-09-12 | 1956-07-10 | Serv Kraft Inc | Latch mechanism |
US2936892A (en) * | 1956-08-01 | 1960-05-17 | Whirlpool Co | Solenoid operated lid latch system |
NL113797C (en) * | 1961-10-25 | |||
US3480753A (en) * | 1968-02-16 | 1969-11-25 | Robert G Wilson | Electronic oven |
-
1971
- 1971-09-07 US US00178044A patent/US3733456A/en not_active Expired - Lifetime
-
1972
- 1972-08-02 CA CA148,569A patent/CA954592A/en not_active Expired
- 1972-08-11 GB GB3764372A patent/GB1371876A/en not_active Expired
- 1972-09-05 DE DE2243539A patent/DE2243539C3/en not_active Expired
- 1972-09-06 SE SE7211478A patent/SE375598B/xx unknown
- 1972-09-07 JP JP47089189A patent/JPS521496B2/ja not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITBO20080556A1 (en) * | 2008-09-12 | 2010-03-13 | Premark Feg Llc | INDUSTRIAL OVEN WITH COMBINED COOKING |
Also Published As
Publication number | Publication date |
---|---|
DE2243539A1 (en) | 1973-03-15 |
DE2243539B2 (en) | 1980-05-22 |
US3733456A (en) | 1973-05-15 |
CA954592A (en) | 1974-09-10 |
SE375598B (en) | 1975-04-21 |
JPS4836739A (en) | 1973-05-30 |
AU4499972A (en) | 1974-02-07 |
DE2243539C3 (en) | 1981-01-29 |
JPS521496B2 (en) | 1977-01-14 |
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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 |