Patent US1954174A successfully refreshed from Google Patents.
US4277104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating shingle remover with upward thrust blade
Assignee: Individual
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Filing: 1980-01-10
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Granted: 1981-07-07
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Expires: 2000-01-10
Abstract
Abstract A power driven device for removing shingles from roof surfaces is disclosed having a reciprocating plate with a notched forward edge that moves in a concave arc during the reciprocating movement.
Inventors
- 👤 Edward J. Sanchez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:28
CPC Classifications
E; E04; E04D; E04D15/00; E04D15/003
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
114 words
A roof shingle remover comprising: (a) a power source mounted on a frame, said power source attached to one end of a drive means to impart a reciprocal motion thereto, said drive means connected at its other end to a shingle remover plate, (b) parallel guide plates attached to said frame and extending on opposite sides of said shingle remover plate, said guide plates having aligned slots, and (c) a plate pushing rod extending through said slots and attached to said shingle remover plate, said slots being positioned in said guide plates and having a sufficiently arched forward end portion to impart an upward thrust by said shingle remover plate during its forward motion.
Claim 2
Dependent Claim
114 words
A roof shingle remover comprising: (a) a power source mounted on a frame, said power source attached to one end of a drive means to impart a reciprocal motion thereto, said drive means connected at its other end to a shingle remover plate, (b) parallel guide plates attached to said frame and extending on opposite sides of said shingle remover plate, said guide plates having aligned slots, and (c) a plate pushing rod extending through said slots and attached to said shingle remover plate, said slots being positioned in said guide plates and having a sufficiently arched forward end portion to impart an upward thrust by said shingle remover plate during its forward motion.
Claim 3
Dependent Claim
187 words
A roof shingle remover comprising: (a) a power source mounted on a frame provided with wheels rotatably attached to said frame, (b) a drive means connected at one end to a flywheel attached to a rotating shaft of said power source to provide reciprocal motion to said drive means and said drive means connected at its other end to a shingle remover plate, (c) parallel guide plates attached to said frame and extending on opposite sides of said shingle remover plate, said guide plates having aligned slots which are upwardly curved at the forward end portion of said guide plates, (d) a plate pushing rod extending through said slots and attached to said shingle remover plate, (e) a roof shingle shield attached to said frame and extending over said guide plates, and (f) an extension plate hingedly attached to said roof shingle shield and positioned in contact with said shingle remover plate by springs attached at one end to said extension plate and at their opposite ends attached to said guide plates and wherein said extension plate has sufficiently short depth to contact said shingle remover plate.
Claim 4
Dependent Claim
187 words
A roof shingle remover comprising: (a) a power source mounted on a frame provided with wheels rotatably attached to said frame, (b) a drive means connected at one end to a flywheel attached to a rotating shaft of said power source to provide reciprocal motion to said drive means and said drive means connected at its other end to a shingle remover plate, (c) parallel guide plates attached to said frame and extending on opposite sides of said shingle remover plate, said guide plates having aligned slots which are upwardly curved at the forward end portion of said guide plates, (d) a plate pushing rod extending through said slots and attached to said shingle remover plate, (e) a roof shingle shield attached to said frame and extending over said guide plates, and (f) an extension plate hingedly attached to said roof shingle shield and positioned in contact with said shingle remover plate by springs attached at one end to said extension plate and at their opposite ends attached to said guide plates and wherein said extension plate has sufficiently short depth to contact said shingle remover plate.
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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) | 1984-07-06 | 1985-01-05 | 1985-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-06 | 1989-01-05 | 1989-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-06 | 1993-01-05 | 1993-07-07 | $7700.00 | Window Closed / Lapsed |