US4365448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanding wheel
Assignee: Individual
•
Filing: 1980-07-14
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Granted: 1982-12-28
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Expires: 2000-07-14
Abstract
Abstract An improved abrasive structure and holder for sanding or the like has a continuous strip of sandpaper or emery cloth folded and secured together to form a circle with radial flaps or fingers extending therefrom and may have a circular stiffener all for cooperating with an annularly grooved disc with radial slots and a cover plate to form a rotary sanding wheel.
Inventors
- 👤 Byron Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:43
CPC Classifications
B; B24; B24D; B24D13/00; B24D13/02; B24D13/04; B24D9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
An abrasive element for a rotary sander comprising an elongated strip of flexible substrate having an abrasive material affixed to an outer surface, said strip being configured in a continuous endless loop with outwardly folded flaps each separated by a short section and said substrate contacting at each fold, means attaching each side of said folded flaps together at least in the base of each fold to provide a circular portion with radial flaps presenting an abrasive outer surface on each side of each flexible flap, and a substantially rigid ring disposed interiorly of said strip and contacting each of said short sections between said folded flaps with means securing said strip to said ring at said short sections.
Claim 2
Dependent Claim
119 words
An abrasive element for a rotary sander comprising an elongated strip of flexible substrate having an abrasive material affixed to an outer surface, said strip being configured in a continuous endless loop with outwardly folded flaps each separated by a short section and said substrate contacting at each fold, means attaching each side of said folded flaps together at least in the base of each fold to provide a circular portion with radial flaps presenting an abrasive outer surface on each side of each flexible flap, and a substantially rigid ring disposed interiorly of said strip and contacting each of said short sections between said folded flaps with means securing said strip to said ring at said short sections.
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) | 1985-12-27 | 1986-06-28 | 1986-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-27 | 1990-06-28 | 1990-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-27 | 1994-06-28 | 1994-12-28 | $7700.00 | Window Closed / Lapsed |