US3648413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automobile body roll sander
Assignee: Individual
•
Filing: 1970-04-10
•
Granted: 1972-03-14
•
Expires: 1990-04-10
Abstract
Abstract A journaled drum having a longitudinal outer groove in which the opposite ends of a band of abrasive material encircling the drum are anchored. The drum includes opposite end rollers provided with resilient outer peripheral portions and journaled for rotation relative to the drum about axes coinciding with the axis of rotation of the drum and the diameters of the rollers are substantially equal and slightly greater than the diameter of the drum defined by the outer surfaces of the band of abrasive material disposed thereabout.
Inventors
- 👤 Guy V Godwin
- 👤 Gilbert L Santana
- 👤 Raymond L Santana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:42
CPC Classifications
B; B24; B24B; B24B23/00; B24B23/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
202 words
A vehicle body panel sander and grinder assembly adapted to be hand held and propelled over a body panel, said assembly including a frame, a drum assembly journalled from said frame and having an abrasive outer surface, a pair of rollers also journaled from said frame at opposite ends of said drum assembly for rotation about axes coinciding with the axis of rotation of the drum, the rollers including resilient outer peripheral portions of substantially equal diameter and slightly larger in diameter than the diameter of the drum assembly defined by said outer surface, one end portion of said drum assembly including torque receiving means adapted to have torque input drive means drivingly coupled thereto, said frame including portions outwardly of the remote sides of parallel planes in which said rollers are disposed for gripping by the two hands of the user of the assembly, said resilient outer peripheral portions being such to support said frame and drum from a vehicle body panel with said drum spaced from said panel, but sufficiently yieldable, under manual pressure, to deform at their areas of contact with said panel sufficient to enable contact of said abrasive outer surface of said drum assembly with said panel.
Claim 2
Dependent Claim
202 words
A vehicle body panel sander and grinder assembly adapted to be hand held and propelled over a body panel, said assembly including a frame, a drum assembly journalled from said frame and having an abrasive outer surface, a pair of rollers also journaled from said frame at opposite ends of said drum assembly for rotation about axes coinciding with the axis of rotation of the drum, the rollers including resilient outer peripheral portions of substantially equal diameter and slightly larger in diameter than the diameter of the drum assembly defined by said outer surface, one end portion of said drum assembly including torque receiving means adapted to have torque input drive means drivingly coupled thereto, said frame including portions outwardly of the remote sides of parallel planes in which said rollers are disposed for gripping by the two hands of the user of the assembly, said resilient outer peripheral portions being such to support said frame and drum from a vehicle body panel with said drum spaced from said panel, but sufficiently yieldable, under manual pressure, to deform at their areas of contact with said panel sufficient to enable contact of said abrasive outer surface of said drum assembly with said panel.
Claim 3
Dependent Claim
32 words
The combination of claim 1 wherein said drum assembly comprises a drum member having a sleeve secured over its outer surface, the outer surface of said sleeve comprising said abrasive outer surface.
Claim 4
Dependent Claim
24 words
The combination of claim 2 wherein said drum member includes a resilient outer coating, said sleeve being flexible and secured over said outer coating.
Claim 5
Dependent Claim
44 words
The combination of claim 3 wherein said outer coating includes a groove formed therein extending longitudinally of said drum member, said sleeve comprising a band of flexible abrasive material wrapped about said coating and including overlapped opposite end edge portions anchored in said groove.
Claim 6
Dependent Claim
63 words
The combination of claim 4 wherein said groove includes one open end, and elongated bar seated in said groove having a backturned hook formed on one end engaged with the end of said coating and drum member adjacent said open end of said groove, and threaded fastener means removably anchoring the other end of said bar in the corresponding end of said groove.
Claim 7
Dependent Claim
49 words
The combination of claim 1 wherein said frame includes a bifurcated frame portion between whose furcations said drum assembly is journaled, a motor including a rotary output shaft, said motor being supported from said frame, said torque receiving means drivingly coupling said rotary output shaft to said drum assembly.
Claim 8
Dependent Claim
21 words
The combination of claim 6 wherein said rotary output shaft is aligned with the axis of rotation of said drum assembly.
Claim 9
Dependent Claim
68 words
The combination of claim 1 wherein said frame includes a bifurcated frame portion between whose furcations said drum assembly is journaled, a motor including a rotary output shaft, said motor being supported from said frame, said torque receiving means drivingly coupling said rotary output shaft to said drum assembly, said rotary output shaft being disposed at right angles relative to the axis of rotation of said drum assembly.
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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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |