Patent US451726A successfully refreshed from Google Patents.
Patent US3663004A successfully refreshed from Google Patents.
US3663004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamping device
Assignee: Individual
•
Filing: 1970-10-15
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Granted: 1972-05-16
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Expires: 1990-10-15
Abstract
Abstract A clamping device wherein an actuating lever is pivotally mounted to a first clamping plate and extends to a second clamping plate disposed parallel to the first plate. The lever engages the second plate in a manner to force the plates together into a clamping position upon movement of the lever.
Inventors
- 👤 Adam Hupert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:18
CPC Classifications
B; B25; B25B; B25B5/00; B25B5/16; B25B5/163; B25B5/06; B25B5/08; Y; Y10; Y10S; Y10S269/00; Y10S269/904
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
60 words
A clamping device comprising a first clamping member, a second clamping member, an operating lever pivotally mounted to said first clamping member and extending to said second clamping member, and cooperating means on said lever and said second clamping member for forcing said clamping members together upon movement of said lever about its pivotal connection to said first clamping member.
Claim 2
Dependent Claim
60 words
A clamping device comprising a first clamping member, a second clamping member, an operating lever pivotally mounted to said first clamping member and extending to said second clamping member, and cooperating means on said lever and said second clamping member for forcing said clamping members together upon movement of said lever about its pivotal connection to said first clamping member.
Claim 3
Dependent Claim
21 words
The device of claim 1 wherein said cooperating means comprises at least one cam surface formed on said second clamping member.
Claim 4
Dependent Claim
24 words
The device of claim 2 wherein said cooperating means further comprises at least one roller carried by said lever for engaging said cam surface.
Claim 5
Dependent Claim
29 words
The device of claim 3 wherein said lever extends through a slot formed in said second clamping member and terminates at a handle portion spaced from said cam surface.
Claim 6
Dependent Claim
26 words
The device of claim 1 further comprising a lug projecting from at least one of said clamping members for locating said device relative to a workpiece.
Claim 7
Dependent Claim
27 words
The device of claim 1 further comprising means for maintaining said clamping members in a spaced parallel position prior to the forcing of said clamping members together.
Claim 8
Dependent Claim
48 words
The device of claim 6 wherein said means for maintaining said clamping members in a spaced parallel position comprises at least one sleeve extending over said lever and between said clamping members, and a spring engaging said sleeve and urging same into engagement with said second clamping member.
Claim 9
Dependent Claim
32 words
The device of claim 6 wherein said means for maintaining said clamping members in a spaced parallel position is also adapted to urge said clamping members apart upon release of said force.
Claim 10
Dependent Claim
19 words
The device of claim 1 further comprising means for urging said clamping members apart upon release of said force.
Claim 11
Dependent Claim
25 words
The device of claim 1 wherein said clamping members comprise a pair of spaced plates having workpiece engaging projections formed on the facing surfaces thereof.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |