Patent US4053958A successfully refreshed from Google Patents.
US4053958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface preparation machine
Assignee: Individual
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Filing: 1975-12-22
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Granted: 1977-10-18
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Expires: 1995-12-22
Abstract
Abstract This device consists primarily of a tool (blade, chisel, or sanding attachment) which is attached to a tool holder. The tool holder in turn is attached by a bearing to a shaft which passes thru a flywheel, the shaft is offset from the center of the flywheel thereby causing an eccentric rotation of the tool holder. The flywheel and tool holder "float" as an assembly on rubber couplings and impart to the tool components of these various motions slicing, chopping, scraping, and rubbing.
Inventors
- 👤 Leland Z. Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:47
CPC Classifications
E; E04; E04G; E04G23/00; E04G23/006
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
173 words
A surface preparation machine for removing material adhered to a planar surface, the machine comprising: a wheeled frame having an upper portion and lower portion; a motor mounted to the upper portion of said frame; a vertical shaft attached at one end to said motor and extending downwardly therefrom; an annular shaped flywheel attached to said shaft, said shaft offset from the center of said flywheel and extending therethrough; a horizontal base plate attached to the lower portion of said frame, said base plate having an aperture therein for receiving said shaft therethrough; a horizontal tool holding plate disposed below said base plate and parallel thereto, the other end of said shaft attached to said tool holding plate, said plate having a tool mounted thereon for removing the material; and coupling means for attaching said plate to said base plate and suspending said plate therefrom; said motor rotating said flywheel and said shaft, said shaft providing an eccentric motion in providing an orbital movement of said tool holding plate in a horizontal plane.
Claim 2
Dependent Claim
173 words
A surface preparation machine for removing material adhered to a planar surface, the machine comprising: a wheeled frame having an upper portion and lower portion; a motor mounted to the upper portion of said frame; a vertical shaft attached at one end to said motor and extending downwardly therefrom; an annular shaped flywheel attached to said shaft, said shaft offset from the center of said flywheel and extending therethrough; a horizontal base plate attached to the lower portion of said frame, said base plate having an aperture therein for receiving said shaft therethrough; a horizontal tool holding plate disposed below said base plate and parallel thereto, the other end of said shaft attached to said tool holding plate, said plate having a tool mounted thereon for removing the material; and coupling means for attaching said plate to said base plate and suspending said plate therefrom; said motor rotating said flywheel and said shaft, said shaft providing an eccentric motion in providing an orbital movement of said tool holding plate in a horizontal plane.
Claim 3
Dependent Claim
54 words
The machine as described in claim 1, wherein said coupling means include a plurality of bolts extending through apertures in said base plate and said tool holding plate and secured thereto by threaded bolts, said bolts having rubber grommets therearound for absorbing the vibration imported from said tool holding plate to said base plate.
Claim 4
Dependent Claim
41 words
The machine as described in claim 1, wherein said vertical shaft is attached to said tool holding plate by a pillow block bearing, said bearing mounted on top of said tool holding plate and receiving the end of said shaft therein.
Claim 5
Dependent Claim
32 words
The machine as described in claim 1, further including a flexible coupling mounted on said shaft and connecting said shaft to said motor for reducing vibrations between said flywheel and said motor.
Claim 6
Dependent Claim
25 words
The machine as described in claim 1, wherein said flywheel mounted on said shaft is disposed between said base plate and said tool holding plate.
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) | 1980-10-17 | 1981-04-18 | 1981-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-17 | 1985-04-18 | 1985-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-17 | 1989-04-18 | 1989-10-18 | $7700.00 | Window Closed / Lapsed |