US3681840A
Expired / Lapsed
US
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Reversible pliers
Assignee: Lisle Corp
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Filing: 1971-04-28
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Granted: 1972-08-08
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Expires: 1991-04-28
Abstract
Abstract A reversible hand pliers provides for movement of the jaws of the pliers in the same sense as the movement of the hand grip. By pivoting a linkage which locks two segments comprising one member of the pliers, the segments are unlocked. The linkage is then connected with the other member of the pliers to provide for a reversal of the movement of the jaws relative to the movement of the hand grip of the pliers.
Inventors
- 👤 James Leland Pool
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:39
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/20; B25B27/205; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53613; Y10T29/5363
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
111 words
A reversible pliers comprising, in combination: first and second members, each member having a hand grip end and a jaw end, means for connecting said first and second members including a first pivot intermediate said ends such that movement of said hand grip ends toward each other similarly moves said jaw ends toward each other, one of said members including an outer segment defined by a second pivot intermediate said first pivot and said end of said member, means for locking said second pivot in a fixed position and means for connecting said segment with said other member to provide reversal of jaw end movement whenever said second pivot is unlocked.
Claim 2
Dependent Claim
111 words
A reversible pliers comprising, in combination: first and second members, each member having a hand grip end and a jaw end, means for connecting said first and second members including a first pivot intermediate said ends such that movement of said hand grip ends toward each other similarly moves said jaw ends toward each other, one of said members including an outer segment defined by a second pivot intermediate said first pivot and said end of said member, means for locking said second pivot in a fixed position and means for connecting said segment with said other member to provide reversal of jaw end movement whenever said second pivot is unlocked.
Claim 3
Dependent Claim
56 words
The pliers of claim 1 wherein said means for connecting said segment with said other member and said means for locking comprise a pivotal link attached to said segment and pivotal to a first position for locking said second pivot and also pivotal to a second position for connection of said segment with said other member.
Claim 4
Dependent Claim
37 words
The pliers of claim 1 wherein said segment includes an extension from said end beyond said second pivot and wherein said means for locking said second pivot includes fastening means for fastening said extension to said member.
Claim 5
Dependent Claim
19 words
The pliers of claim 1 wherein said second pivot is intermediate said first pivot and said hand grip end.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |