Patent US4353537A successfully refreshed from Google Patents.
US4353537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Securing and clamping device
Assignee: Individual
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Filing: 1981-03-30
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Granted: 1982-10-12
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Expires: 2001-03-30
Abstract
Abstract A device for clamping or forceful engagement. Top and bottom casing members are maintained in restricted movable engagement with each other. Received within the casing members are a plurality of balls, arranged in layers. Certain of the balls are spring-biased to urge the top and bottom casing members away from each other. In one embodiment of the invention, certain of the balls protrude through the top casing member and adapt to clamp objects of varying geometrical configurations. As forceful engagement is attained, the balls of the device compress and interlock with each other. In another embodiment of the invention, the top casing is without holes and the apparatus may then be used to achieve forceful engagement with an angled surface such as in a clutch mechanism.
Inventors
- 👤 James Koufos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:41
CPC Classifications
B; B25; B25B; B25B1/00; B25B1/24; B25B1/2405; B25B1/241; B25B1/20; Y; Y10; Y10S; Y10S294/00; Y10S294/902; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49691
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
102 words
A clamping device, comprising: a hollow casing having top and bottom portions; a plurality of balls maintained within said casing in restricted movable engagement with each other, said balls being maintained within said casing in layers, a first layer in contact with said top portion and a second layer in contact with said bottom portion, and an intermediate layer therebetween; and means associated with the balls of each of said layers for restricting lateral movement of said balls within their respective layers, said means comprising first and second mats having holes therein for respectively receiving said second and intermediate layers of balls.
Claim 2
Dependent Claim
102 words
A clamping device, comprising: a hollow casing having top and bottom portions; a plurality of balls maintained within said casing in restricted movable engagement with each other, said balls being maintained within said casing in layers, a first layer in contact with said top portion and a second layer in contact with said bottom portion, and an intermediate layer therebetween; and means associated with the balls of each of said layers for restricting lateral movement of said balls within their respective layers, said means comprising first and second mats having holes therein for respectively receiving said second and intermediate layers of balls.
Claim 3
Dependent Claim
20 words
The clamping device according to claim 1 wherein said first layer of balls is biased away from said bottom portion.
Claim 4
Dependent Claim
35 words
The clamping device according to claim 1 wherein said means for restricting lateral movement further includes a plurality of projected openings in said top portion, each receiving one of said balls of said first layer.
Claim 5
Dependent Claim
32 words
The clamping device according to claim 3 wherein said mats have aligned openings receiving biasing springs therein, said springs being interposed between said bottom portion and said balls of said first layer.
Claim 6
Dependent Claim
26 words
The clamping device according to claim 1 wherein said top and bottom portions of said casing are interconnected by means for allowing restricted relative movement therebetween.
Claim 7
Dependent Claim
20 words
The clamping device according to claim 5 wherein said bottom portion of said casing has an arbor centrally extending therefrom.
Claim 8
Independent Claim
39 words
A device, comprising: top and bottom casings in restricted movable engagement with each other; a plurality of balls maintained between said casings in movable and locking engagement with each other; and a resilient mat receiving certain of said balls.
Claim 9
Independent Claim
39 words
A device, comprising: top and bottom casings in restricted movable engagement with each other; a plurality of balls maintained between said casings in movable and locking engagement with each other; and a resilient mat receiving certain of said balls.
Claim 10
Dependent Claim
21 words
The device according to claim 7 wherein said balls are of varying sizes and are maintained in layers within said casings.
Claim 11
Dependent Claim
20 words
The device according to claim 8 which further includes spring means in biasing contacting engagement with certain of said balls.
Claim 12
Dependent Claim
24 words
The device according to claim 9 wherein said top casing is characterized by a plurality of truncated conical springs receiving certain of said balls.
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) | 1985-10-11 | 1986-04-12 | 1986-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-11 | 1990-04-12 | 1990-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-11 | 1994-04-12 | 1994-10-12 | $7700.00 | Window Closed / Lapsed |