Patent US4254450A successfully refreshed from Google Patents.
US4254450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp assembly for combination microwave oven and exhaust vent
Assignee: General Electric Co
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Filing: 1978-08-21
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Granted: 1981-03-03
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Expires: 1998-08-21
Abstract
Abstract A lamp mounting assembly for a microwave oven which permits easy replacement of the illuminating lamps including a lamp housing which attaches to the top wall of a microwave oven structure and is located in a space between the top wall of the oven structure and the top wall of a support assembly. The lamp housing is accessible through a removable grille which closes the space at the front of the microwave oven. The top wall of the oven cavity has a series of openings through which light from the bulb is directed to illuminate the oven cavity. The assembly includes supporting sidewalls having elongated channels sloping downwardly from front to rear. The lamp mounting member is supported for reciprocal movement along the channels, the member being accessible through the removable grille.
Inventors
- 👤 James A. White
- 👤 Frank L. Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:03
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/6444
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
141 words
A microwave oven appliance comprising: a microwave oven operating module including a magnetron housing, an oven cavity, a front opening door for providing access to said cavity; a support assembly in which said module is supported, said module adapted for movement into and out of said assembly, said assembly including a wall spaced from said module to provide a front accessible space therebetween formed by insertion of said module into said assembly; and a lamp assembly positioned in said space, said lamp assembly including a lamp and means for reciprocally mounting said lamp for movement between a first position in which it illuminates said cavity, and a second position out of said space in which it is manually accessible for removal and replacement, movement between said first and second positions transversing a path generally perpendicular to the plane of said door.
Claim 2
Dependent Claim
141 words
A microwave oven appliance comprising: a microwave oven operating module including a magnetron housing, an oven cavity, a front opening door for providing access to said cavity; a support assembly in which said module is supported, said module adapted for movement into and out of said assembly, said assembly including a wall spaced from said module to provide a front accessible space therebetween formed by insertion of said module into said assembly; and a lamp assembly positioned in said space, said lamp assembly including a lamp and means for reciprocally mounting said lamp for movement between a first position in which it illuminates said cavity, and a second position out of said space in which it is manually accessible for removal and replacement, movement between said first and second positions transversing a path generally perpendicular to the plane of said door.
Claim 3
Dependent Claim
44 words
The combination recited in claim 1 wherein said lamp assembly is carried by said module and includes upright sidewalls spaced from each other, said sidewalls having channels running parallel to each other, and a lamp holding member supported for sliding movement along said channels.
Claim 4
Dependent Claim
23 words
The combination recited in claim 2 wherein said channels slope downwardly toward said module as said member moves rearwardly away from said door.
Claim 5
Dependent Claim
14 words
The combination recited in claim 2 further including a detachable grille covering said space.
Claim 6
Dependent Claim
157 words
A microwave oven appliance comprising: a microwave oven operating module including a magnetron housing, an oven cavity, a front opening door for providing access to said cavity; a support assembly comprising a generally open-front, wall mountable enclosure in which said module is supported, said module and assembly having cooperating means to permit movement of said module into and out of said assembly, a space formed generally between the top wall of said assembly and said module, said space being accessible from the front of said appliance and running rearwardly; and a lamp assembly carried by said module and positioned in said space, said lamp assembly including a lamp and means manually accessible from the front of said appliance for reciprocally mounting said lamp for movement between a first rearward position in which it illuminates said cavity, and a second forward position in which it is manually accessible for removal and replacement from the front of said appliance.
Claim 7
Dependent Claim
157 words
A microwave oven appliance comprising: a microwave oven operating module including a magnetron housing, an oven cavity, a front opening door for providing access to said cavity; a support assembly comprising a generally open-front, wall mountable enclosure in which said module is supported, said module and assembly having cooperating means to permit movement of said module into and out of said assembly, a space formed generally between the top wall of said assembly and said module, said space being accessible from the front of said appliance and running rearwardly; and a lamp assembly carried by said module and positioned in said space, said lamp assembly including a lamp and means manually accessible from the front of said appliance for reciprocally mounting said lamp for movement between a first rearward position in which it illuminates said cavity, and a second forward position in which it is manually accessible for removal and replacement from the front of said appliance.
Claim 8
Dependent Claim
33 words
The combination recited in claim 5 wherein said lamp assembly includes upright sidewalls spaced from each other, said sidewalls having channels, and a lamp holding member supported for sliding movement along said channels.
Claim 9
Dependent Claim
23 words
The combination recited in claim 6 wherein said channels slope downwardly toward said module as said member moves rearwardly away from said door.
Claim 10
Dependent Claim
14 words
The combination recited in claim 7 further including a detachable grille covering said space.
Claim 11
Dependent Claim
41 words
The combination recited in claim 6 wherein said holding member comprises a plate having a light-reflecting surface, said lamp positioned between said surface and said cavity, said module including an aperture through which light from said lamp passes to said cavity.
Claim 12
Dependent Claim
28 words
The combination recited in claim 1 wherein said lamp in moving between said first and second positions transverses a path generally perpendicular to the plane of said door.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |