Patent US3871477A successfully refreshed from Google Patents.
US3871477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheetrock lift and scaffold
Assignee: Individual
•
Filing: 1974-02-07
•
Granted: 1975-03-18
•
Expires: 1994-02-07
Abstract
Abstract The combination scaffold and lift comprises a truck provided with suitable casters and balance arms to stabilize the truck, a pedestal issuing upwardly from the truck, a platform issuing from opposing sides of the pedestal over the balance arms and being freely slidable along the pedestal and having means for raising and lowering the platform with respect to the pedestal, and a lift assembly including a lift column carried in the pedestal including means for raising and lowering the lift column with respect to the pedestal, and having lift arms issuing from opposing sides of a bracket at the uppermost terminal end of the lift column over the platform and balance arms.
Inventors
- 👤 Johnnie Kuest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:34
CPC Classifications
B; B66; B66F; B66F11/00; B66F11/04; E; E04; E04F; E04F21/00; E04F21/18; E04F21/1805; E04F21/1816
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
116 words
A combination scaffold and lift comprising: a truck provided with suitable casters and balance arms being in contact with the floor to stabilize said truck; a pedestal issuing upwardly from said truck; a platform issuing from opposing sides of said pedestal over said balance arms, said platform being freely slidable along said pedestal and being provided with means for raising and lowering said platform with respect to said pedestal; and a lift assembly including a lift column carried in said pedestal and including means for raising and lowering said lift column with respect to said pedestal, and having lift arms issuing from opposing sides of a bracket at the uppermost terminal end of said lift column.
Claim 2
Dependent Claim
116 words
A combination scaffold and lift comprising: a truck provided with suitable casters and balance arms being in contact with the floor to stabilize said truck; a pedestal issuing upwardly from said truck; a platform issuing from opposing sides of said pedestal over said balance arms, said platform being freely slidable along said pedestal and being provided with means for raising and lowering said platform with respect to said pedestal; and a lift assembly including a lift column carried in said pedestal and including means for raising and lowering said lift column with respect to said pedestal, and having lift arms issuing from opposing sides of a bracket at the uppermost terminal end of said lift column.
Claim 3
Dependent Claim
18 words
The apparatus of claim 1 wherein said balance arms issue from said truck, and telescope into each other.
Claim 4
Dependent Claim
13 words
The apparatus of claim 1 wherein said platform is demountable from said pedestal.
Claim 5
Dependent Claim
14 words
The apparatus of claim 1 wherein said platform is hingedly mounted to said pedestal.
Claim 6
Dependent Claim
36 words
The apparatus of claim 4 wherein said hinges are mounted, for vertical pivoting, and wherein said means for raising and lowering said platform is mounted to selectively mechanically pivot panels forming said platform adjacent said pedestal.
Claim 7
Dependent Claim
14 words
The apparatus of claim 1 wherein said lift arms are demountable from said bracket.
References Cited (Backward Citations)
US2655412A
Cited
US2695759A
Cited
US3197178A
Cited
US3487952A
Cited
US3452837A
Cited
US3752261A
Cited
US3788424A
Cited
US3828942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |