Patent US4941718A successfully refreshed from Google Patents.
US4941718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concealed retractable housings
Assignee: ALEXANDER MACHINERY Inc A CORP OF
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Filing: 1988-03-21
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Granted: 1990-07-17
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Expires: 2008-03-21
Abstract
Abstract The drawings illustrate an apparatus for housing articles between a ceiling and a roof, utilizing a switch means for actuating suitable electrically operated pivoting means for retracting the apparatus into the ceiling and lowering it from the ceiling.
Inventors
- 👤 William J. Alexander, III
- 👤 Fred A. Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:03
CPC Classifications
B; B60; B60R; B60R11/00; B60R11/02; A; A47; A47B; A47B88/00; A47B88/80; E; E05; E05G; E05G1/00; G; G01; G01S; G01S13/00; G01S13/88; G01S13/93; G01S13/931; G01S7/00; G01S7/02; G01S7/027; B60R2011/0001; B60R2011/0003; B60R2011/0028; B60R2011/0042; B60R2011/0049; B60R2011/0064; B60R2011/0077; B60R2011/008; B60R2011/0082; B60R2011/0092; E05Y; E05Y2900/00; E05Y2900/20; G01S2013/9327; G01S2013/93273
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
140 words
Apparatus for concealing an article between a ceiling and a roof comprising: a frame between the ceiling and the roof; a lower support for said article; pivotal means pivotally mounted to said frame and said lower support carrying said support for movement from a retracted position within said frame between the roof and ceiling to a position below the ceiling; said pivotal means including means for lowering and swinging forward said lower support; electrically operated means operating said pivotal means for movement of said support from said retracted position to said position below the ceiling and for returning said support to said retracted position; said means pivotal means including for maintaining said lower support level during movement; and switch means actuating said electrically operated means; whereby said position below the ceiling is below and in front of said retracted position.
Claim 2
Dependent Claim
140 words
Apparatus for concealing an article between a ceiling and a roof comprising: a frame between the ceiling and the roof; a lower support for said article; pivotal means pivotally mounted to said frame and said lower support carrying said support for movement from a retracted position within said frame between the roof and ceiling to a position below the ceiling; said pivotal means including means for lowering and swinging forward said lower support; electrically operated means operating said pivotal means for movement of said support from said retracted position to said position below the ceiling and for returning said support to said retracted position; said means pivotal means including for maintaining said lower support level during movement; and switch means actuating said electrically operated means; whereby said position below the ceiling is below and in front of said retracted position.
Claim 3
Dependent Claim
158 words
Apparatus for concealing an article between a ceiling and a roof comprising: a frame between the ceiling and the roof; a lower support for said article; pivotal means pivotally mounted to said frame and said lower support carrying said support for movement from a retracted position within said frame between the roof and ceiling to a position below the ceiling wherein said pivotal means includes means for lowering and swinging forward said lower support; whereby said position below the ceiling is below and in front of said retracted position; electrically operated means including a retraction means operating said pivotal means for movement of said support from said retracted position to said position below the ceiling and for returning said support to said retracted position; and said means pivotal means including for maintaining said lower support level during movement; whereby said article may be readily concealed from view above said ceiling and readily returned to view below said ceiling.
Claim 4
Dependent Claim
158 words
Apparatus for concealing an article between a ceiling and a roof comprising: a frame between the ceiling and the roof; a lower support for said article; pivotal means pivotally mounted to said frame and said lower support carrying said support for movement from a retracted position within said frame between the roof and ceiling to a position below the ceiling wherein said pivotal means includes means for lowering and swinging forward said lower support; whereby said position below the ceiling is below and in front of said retracted position; electrically operated means including a retraction means operating said pivotal means for movement of said support from said retracted position to said position below the ceiling and for returning said support to said retracted position; and said means pivotal means including for maintaining said lower support level during movement; whereby said article may be readily concealed from view above said ceiling and readily returned to view below said ceiling.
Claim 5
Dependent Claim
15 words
The structure set forth in claim 2 wherein said retraction means is a pressurized cylinder.
Claim 6
Dependent Claim
18 words
The structure set forth in claim 2 wherein said retraction means is a spool operator with a cord.
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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) | 1993-07-16 | 1994-01-15 | 1994-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-16 | 1998-01-15 | 1998-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-16 | 2002-01-15 | 2002-07-17 | $7700.00 | Window Closed / Lapsed |