Patent US1621035A successfully refreshed from Google Patents.
Patent US3930338A successfully refreshed from Google Patents.
US3930338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Access door
Assignee: ARELCO Inc
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Filing: 1974-02-04
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Granted: 1976-01-06
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Expires: 1994-02-04
Abstract
Abstract An access door assembly provides a removable covering for an access opening in a wall panel. The assembly includes clip members frictionally mounted to the wall panel at spaced locations around the periphery of the access opening. A door overlies the opening and is dimensioned to cover the clip members as well as the opening. Spring-clip fastening elements releasably secure the door to the clip members and hold the door in position over the opening in the wall panel.
Inventors
- 👤 Ronald A. Rood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:55
CPC Classifications
E; E04; E04F; E04F19/00; E04F19/08; E04B; E04B9/00; E04B9/003
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
135 words
A removable access door assembly for covering an opening in a wall panel, said access door assembly comprising in combination: a first member mounted on a first side of said opening and a second member mounted on a second side of said opening, said second side being opposite said first side, and said members not being connected; each member including flange means for securing said member to the wall panel surface; a cover plate mounting means supported on each of said members; a cover plate dimensioned larger than said opening and adapted completely to overlie said opening and said flange means of said members; and a pair of cover plate fastening means extending from the inner surface of said cover plate and engageable with said mounting means for interconnecting said door member and said members.
Claim 2
Dependent Claim
135 words
A removable access door assembly for covering an opening in a wall panel, said access door assembly comprising in combination: a first member mounted on a first side of said opening and a second member mounted on a second side of said opening, said second side being opposite said first side, and said members not being connected; each member including flange means for securing said member to the wall panel surface; a cover plate mounting means supported on each of said members; a cover plate dimensioned larger than said opening and adapted completely to overlie said opening and said flange means of said members; and a pair of cover plate fastening means extending from the inner surface of said cover plate and engageable with said mounting means for interconnecting said door member and said members.
Claim 3
Dependent Claim
27 words
A removable access door assembly as defined by claim 1 wherein each mounting member further includes a protrusion for frictionally engaging the wall panel near the opening.
Claim 4
Dependent Claim
25 words
A removable access door assembly as defined by claim 1 which further includes means for securing the cover plate fastening means to the cover plate.
Claim 5
Dependent Claim
39 words
A removable access door assembly as defined by claim 3 wherein the means for securing the cover plate fastening means to the cover plate comprises a sheet of rigid material secured to an inside face of the cover plate.
Claim 6
Dependent Claim
20 words
A removable access door assembly as defined by claim 4 wherein the cover plate fastening means is a V-shaped spring-clip.
Claim 7
Dependent Claim
22 words
A removable access door assembly as defined by claim 5 wherein the V-shaped spring-clip is secured to a cover plate backing member.
Claim 8
Dependent Claim
49 words
A removable access door assembly as defined by claim 6 wherein each cover plate mounting means comprises a locking plate member supported by the inner flange means of said mounting member and extending toward the center of the opening, said plate member including slot means for receiving said spring-clip.
References Cited (Backward Citations)
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US1632431A
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US1921051A
Cited
US2766856A
Cited
US3064550A
Cited
US3187389A
Cited
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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) | 1979-01-05 | 1979-07-07 | 1980-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-05 | 1983-07-07 | 1984-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-05 | 1987-07-07 | 1988-01-06 | $7700.00 | Window Closed / Lapsed |