Patent US4064999A successfully refreshed from Google Patents.
US4064999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable building panel scaffold
Assignee: Individual
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Filing: 1976-07-07
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Granted: 1977-12-27
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Expires: 1996-07-07
Abstract
Abstract An elevatable and adjustable scaffold device for supporting ceiling or other panels usually attached to overhead rafters and ceiling beams, operable by one person and capable of fine adjustment for height, as well as length and width for working in small rooms.
Inventors
- 👤 Simon Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:16
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/18; E04F21/1805; E04F21/1811
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
350 words
A panel lifting apparatus for raising and hold ceiling panels in place during attachment thereof to ceiling joists including: a. a base unit having first and second generally rectangular end units each consisting of three hollow vertical leg members connected at their lower ends and adjacent their upper ends by an upper and lower transverse horizontal brace, said first end unit connected to said second end unit longitudinally by an upper and lower central hollow horizontal brace member, said upper central hollow horizontal brace member being connected adjacent the upper end of the central vertical leg on said first end unit and said lower central horizontal brace member being connected at one end at the bottom of the central vertical leg of said first end unit and having inserted in the opposite ends of said upper and lower central hollow horizontal brace members, one end of each of an upper and lower solid central horizontal brace member, respectively, and having the opposite end of each of said upper and lower solid central horizontal brace members being connected, respectively, adjacent the upper end of the central vertical leg of said second end unit and to the bottom of said central vertical leg of said second end unit so that said base unit is slidably adjustable longitudinally; b. a carriage unit of a generally rectangular frame registerable over said first and second end units in a horizontal plane normal to the vertical above said first and second end units and said carriage unit being slidably adjustable longitudinally in the same manner as the basement and being slidably connected to said base unit by downwardly extending solid vertical legs, each of which is slidably engaged in a vertical leg of said base unit; and c. actuating means located on said upper central hollow horizontal brace member including a cable attached to the lower end of each central downwardly extending vertical leg from said carriage unit and attached over a suitable arrangement of pulleys to winch means whereby on operation of the actuating means, said carriage unit is raised or lowered vertically as desired.
Claim 2
Dependent Claim
350 words
A panel lifting apparatus for raising and hold ceiling panels in place during attachment thereof to ceiling joists including: a. a base unit having first and second generally rectangular end units each consisting of three hollow vertical leg members connected at their lower ends and adjacent their upper ends by an upper and lower transverse horizontal brace, said first end unit connected to said second end unit longitudinally by an upper and lower central hollow horizontal brace member, said upper central hollow horizontal brace member being connected adjacent the upper end of the central vertical leg on said first end unit and said lower central horizontal brace member being connected at one end at the bottom of the central vertical leg of said first end unit and having inserted in the opposite ends of said upper and lower central hollow horizontal brace members, one end of each of an upper and lower solid central horizontal brace member, respectively, and having the opposite end of each of said upper and lower solid central horizontal brace members being connected, respectively, adjacent the upper end of the central vertical leg of said second end unit and to the bottom of said central vertical leg of said second end unit so that said base unit is slidably adjustable longitudinally; b. a carriage unit of a generally rectangular frame registerable over said first and second end units in a horizontal plane normal to the vertical above said first and second end units and said carriage unit being slidably adjustable longitudinally in the same manner as the basement and being slidably connected to said base unit by downwardly extending solid vertical legs, each of which is slidably engaged in a vertical leg of said base unit; and c. actuating means located on said upper central hollow horizontal brace member including a cable attached to the lower end of each central downwardly extending vertical leg from said carriage unit and attached over a suitable arrangement of pulleys to winch means whereby on operation of the actuating means, said carriage unit is raised or lowered vertically as desired.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-26 | 1981-06-27 | 1981-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-26 | 1985-06-27 | 1985-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-26 | 1989-06-27 | 1989-12-27 | $7700.00 | Window Closed / Lapsed |