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 Title: |
US4711982:
Plastic microwave oven door
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Millman, Ronald W.; Bloomington, MN
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| Assignee: |
Litton Systems, Inc., Beverly Hills, CA
other patents from LITTON SYSTEMS INC. (340135) (approx. 1,395)
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| Published / Filed: |
1987-12-08
/ 1986-05-30
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| Application Number: |
US1986000869212
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| IPC Code: |
Advanced:
H05B 6/76;
Core:
more...
IPC-7:
H05B 6/64;
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| U.S. Class: |
Current:
219/739;
219/740;
219/744;
Original:
219/010.55D;
219/010.55R;
219/010.55F;
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| Field of Search: |
219/10.55 D,10.55 F,10.55 M
220/337,338,339
427/099
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| Priority Number: |
| 1986-05-30 |
US1986000869212 |
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| Abstract: |
A microwave oven door is disclosed having a channel cross-section and formed of plastic material having a microwave impermeable viewing window, hinge means, door securing means, and a microwave impermeable coating in the channel cross-section area. An alternative embodiment has the channel cross-section area formed of a plastic filled with a microwave blocking material. A further embodiment has a microwave impermeable opaque surface in place of the viewing window.
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| Attorney, Agent or Firm: |
Haurykiewicz, John M. ;
Thiel, Walter R. ;
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| Primary / Asst. Examiners: |
Pellinen, A. D.; Fuller, Leon K.
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| Maintenance Status: |
E2 Expired Check current status
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| INPADOC Legal Status: |
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| Family: |
None
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First Claim:
Show all 26 claims |
What is claimed is:
1. A microwave oven door structure comprising:
- a unitary frame circumscribing a central viewing aperture and formed of a plastic material having a channel cross-section adapted to face a microwave oven cavity opening;
- a microwave-impermeable viewing window positioned across the central viewing aperture secured to said frame to permit visual inspection of the interior of a microwave oven cavity; and
- a hinge means formed as a single piece with said frame for pivotally connecting one side of the frame to a microwave oven;
wherein the frame channel is provided with a microwave impermeable coating.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 2 U.S. patent(s) that reference this one
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