US4438601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sandpaper cleaning device
Assignee: Individual
•
Filing: 1983-03-09
•
Granted: 1984-03-27
•
Expires: 2003-03-09
Abstract
Abstract A sandpaper cleaning tool is disclosed comprising an elongated horizontal handle. First and second U-shaped brackets are secured to one surface of the handle and are axially offset with respect to each other and with the longitudinal axis of the handle. Cylindrical wire brushes are freely rotatably mounted on each of the brackets. The method comprises moving the tool under pressure longitudinally over sandpaper to be cleaned, thus causing the axially offset brushes to rotate and skid to clean the sandpaper.
Inventors
- 👤 Alvin O. Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:29
CPC Classifications
B; B24; B24B; B24B53/00; B24B53/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
152 words
A cleaning tool for cleaning sandpaper, comprising, an elongated horizontally disposed handle having a horizontal longitudinal axis, opposite parallel side portions, and a horizontally disposed bottom portion, first and second longitudinally spacd apart brackets secured to and spanning said handle adjacent said bottom portion, said brackets being angularly disposed with respect to each other and with respect to said longitudinal axis, and a horizontally disposed cylindrically shaped roller wire brush being parallel to said bottom portion and having a freely rotatable axle mounted on each of said brackets, each of said brackets being of a channel construction including spaced apart parallel ears and an integral connecting web, said parallel ears adapted to receive said roller brush axle, said parallel ears being perpendicular to the longitudinal axis of said brush axle, said brackets and said rollers extending beyond the side portions of said handle, and comprising the only structure on said bottom portion.
Claim 2
Dependent Claim
152 words
A cleaning tool for cleaning sandpaper, comprising, an elongated horizontally disposed handle having a horizontal longitudinal axis, opposite parallel side portions, and a horizontally disposed bottom portion, first and second longitudinally spacd apart brackets secured to and spanning said handle adjacent said bottom portion, said brackets being angularly disposed with respect to each other and with respect to said longitudinal axis, and a horizontally disposed cylindrically shaped roller wire brush being parallel to said bottom portion and having a freely rotatable axle mounted on each of said brackets, each of said brackets being of a channel construction including spaced apart parallel ears and an integral connecting web, said parallel ears adapted to receive said roller brush axle, said parallel ears being perpendicular to the longitudinal axis of said brush axle, said brackets and said rollers extending beyond the side portions of said handle, and comprising the only structure on said bottom portion.
Claim 3
Dependent Claim
23 words
The cleaning tool of claim 1 wherein said brushes are disposed at an angle of approximately 8° with respect to said longitudinal axis.
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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) | 1987-03-27 | 1987-09-26 | 1988-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-27 | 1991-09-26 | 1992-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-27 | 1995-09-26 | 1996-03-27 | $7700.00 | Window Closed / Lapsed |