US3822518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanding shoe and clip therefor
Assignee: RODAC PNEUMATIC TOOLS
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Filing: 1972-09-07
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Granted: 1974-07-09
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Expires: 1992-09-07
Abstract
Abstract A sanding shoe having an over-center type clip for clamping an abrasive sanding sheet to the end of the shoe. The shoe itself is fabricated from rubber having a metal panel or insert molded into it near the upper surface. The rubber material forms an upstanding rib at the end of the shoe with bevelled inside surfaces. The ends of the abrasive sheet come over the end ribs and it is clamped thereto by a resilient U-shaped metal clamp which is held in the clamped position by an over-center movement.
Inventors
- 👤 G Sjostrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:19
CPC Classifications
B; B24; B24D; B24D15/00; B24D15/02; B24D15/023
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
200 words
A sanding tool, comprising: a sanding shoe having upper and lower major surfaces and first and second spaced apart ends, an inwardly sloping beveled surface of resilient material being formed on said upper major surface adjacent each of said shoe ends; a pair of resilient clamping members having inner and outer ends, a downwardly extending clamping edge being formed on each of said clamping member outer ends, said clamping members having their inner ends secured on said shoe and being mounted over opposite ends of the upper major surface of said shoe, each of said clamping members having a predetermined shape to assume when unbent a position in which its clamping edge overlies and is spaced apart above said beveled surface formed on said shoe end with which it is associated; and selectively releasable latch means for locking said clamping members with their clamping edges in tight eNgagement with said beveled surfaces whereby an abrasive sheet of material may be secured on said shoe to extend between the ends thereof across said shoe''s major lower surface by folding opposite ends of the abrasive sheet over the beveled surface on opposite ends of said shoe and then locking said latch means.
Claim 2
Dependent Claim
200 words
A sanding tool, comprising: a sanding shoe having upper and lower major surfaces and first and second spaced apart ends, an inwardly sloping beveled surface of resilient material being formed on said upper major surface adjacent each of said shoe ends; a pair of resilient clamping members having inner and outer ends, a downwardly extending clamping edge being formed on each of said clamping member outer ends, said clamping members having their inner ends secured on said shoe and being mounted over opposite ends of the upper major surface of said shoe, each of said clamping members having a predetermined shape to assume when unbent a position in which its clamping edge overlies and is spaced apart above said beveled surface formed on said shoe end with which it is associated; and selectively releasable latch means for locking said clamping members with their clamping edges in tight eNgagement with said beveled surfaces whereby an abrasive sheet of material may be secured on said shoe to extend between the ends thereof across said shoe''s major lower surface by folding opposite ends of the abrasive sheet over the beveled surface on opposite ends of said shoe and then locking said latch means.
Claim 3
Dependent Claim
28 words
The invention defined in claim 1 wherein said clamping edges have downwardly extending teeth formed thereon positioned to engage said beveled surfaces when said latch means is locked.
Claim 4
Dependent Claim
14 words
The invention defined in claim 1 wherein said beveled surfaces are made of rubber.
Claim 5
Dependent Claim
31 words
The invention defined in claim 1 wherein said shoe is made of a substantially rigid interiorly positioned reinforcing plate surrounded by rubber, said rubber defining the outer surfaces of said shoe.
Claim 6
Dependent Claim
30 words
The invention defined in claim 1 wherein each of said clamping edges extends substantially at a right angle to the one of said beveled surfaces with which it is associated.
Claim 7
Dependent Claim
64 words
The invention defined in claim 1 wherein each of said clamping members is a substantially U-shaped piece of spring metal having a pair of spaced apart mutually parallel legs connected on their outer ends by a bight portion, said bight portion defining the outer end of said clamping member and the inner ends of said legs defining the inner end of said clamping member.
Claim 8
Dependent Claim
112 words
The invention defined in claim 1 wherein said latch means includes a two position over center actuating mechanism associated with each of said clamping members, each of said over center actuating mechanisms being mounted on the upper major surface of said shoe in engagement with its associated one of said clamping members and being selectively movable between a locked and unlocked position, each of said over center actuating mechanisms being operable in its locked position to depress and hold the clamping member it engages with its clamping edge in engagement with the associated one of said beveled surfaces and in its unlocked position permitting said clamping member to assume its unbent shape.
Claim 9
Dependent Claim
112 words
The invention defined in claim 6 wherein said latch means includes a two position over center actuating mechanism associated with each of said clamping members, each of said over center actuating mechanisms being mounted on the upper major surface of said shoe in engagement with its associated one of said clamping members and being selectively movable between a locked and unlocked position, each of said over center actuating mechanisms being operable in its locked position to depress and hold the clamping member it engages with its clamping edge in engagement with the associated one of said beveled surfaces and in its unlocked position permitting said clamping member to assume its unbent shape.
Claim 10
Dependent Claim
79 words
The invention defined in claim 8 wherein each of said over center actuating mechanisms is formed by a crank member rotatably mounted on said shoe, said crank members having portions offset from their axes of rotation which may be selectively rotated downwardly substantially simultaneously into engagement with each of the legs of the one of said clamping members with which it is associated whereby to force said clamping member into engagement with its associated one of said beveled surfaces.
Claim 11
Dependent Claim
45 words
The invention defined in claim 1 including screws having their heads rigidly secured and imbedded in said shoe with the shaft portions of said screws extending upwardly from the upper major surface of said shoe so that a sanding tool handle may be secured thereon.
Claim 12
Dependent Claim
63 words
The invention defined in claim 1 wherein: each of said clamping edges extends substantially at a right angle to the one of said beveled surfaces with which it is associated; and each of said clamping edges has downwardly extending teeth formed thereon positioned to engage the the one of said beveled surfaces with which it is associated when said latch means is locked.
Claim 13
Dependent Claim
112 words
The invention defined in claim 11 wherein said latch means includes a two position over center actuating mechAnism associated with each of said clamping members, each of said over center actuating mechanisms being mounted on the upper major surface of said shoe in engagement with its associated one of said clamping members and being selectively movable between a locked and unlocked position, each of said over center actuating mechanisms being operable in its locked position to depress and hold the clamping member it engages with its clamping edge in engagement with the associated one of said beveled surfaces and in its unlocked position permitting said clamping member to assume its unbent shape.
Claim 14
Dependent Claim
31 words
The invention defined in claim 12 wherein said shoe is made of a substantially rigid interiorly positioned reinforcing plate surrounded by rubber, said rubber defining the outer surfaces of said shoe.
Claim 15
Dependent Claim
14 words
The invention defined in claim 11, wherein said beveled surfaces are made of rubber.
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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |