Patent US3669487A successfully refreshed from Google Patents.
US3669487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool
Assignee: Individual
•
Filing: 1970-11-09
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Granted: 1972-06-13
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Expires: 1990-11-09
Abstract
Abstract A tool including a set of jaws mounted in one end of a hollow extension whose other end is secured to a handle which includes a trigger. Shield means disposed between the handle and jaws isolates the operator''s hand so that the jaws on the extension can be presented to a hazardous work region without exposing the operator''s hand to injury. A linkage system disposed within the hollow extension and handle connects the trigger to one of the jaws so as to positively move the jaw between open and closed positions upon movement of the trigger. Tooth means in one jaw mesh with cavity means in the opposing jaw of the set to securely grasp a object therebetween.
Inventors
- 👤 Lonnie D Roberts
- 👤 Claude A Plummer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:17
CPC Classifications
B; B25; B25B; B25B7/00; B25B7/02; B25B7/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
250 words
A tool comprising a set of jaws, at least one jaw of the set being movable between open and closed positions with respect to the other jaw of the set, a face portion on each jaw of the set, said face portions being in contiguous relation to one another when said jaws are closed, said set of jaws including tooth means extending from the face of at least one jaw of the set of jaws and corresponding cavity means in the face of the other jaw of the set for receiving said tooth means therein when said jaws are closed, an elongated hollow extension receiving said set of jaws on one of its ends, handle means secured to that end of said extension opposite said jaws, said handle means including an internal cavity, trigger means disposed principally within said cavity in said handle means, a linkage assembly connecting said trigger means to said movable jaw so as to move said jaw betweEn its open and closed positions upon movement of said trigger means, said linkage assembly being housed within said hollow extension and said trigger means, and means biasing said movable jaw toward its open position, whereby said tool may be grasped in the hand of an operator at a position on the tool remote from the set of jaws and said jaws may be presented to a work position and said movable jaw moved between its open and closed positions without introducing the operator''s hand to the work position.
Claim 2
Dependent Claim
250 words
A tool comprising a set of jaws, at least one jaw of the set being movable between open and closed positions with respect to the other jaw of the set, a face portion on each jaw of the set, said face portions being in contiguous relation to one another when said jaws are closed, said set of jaws including tooth means extending from the face of at least one jaw of the set of jaws and corresponding cavity means in the face of the other jaw of the set for receiving said tooth means therein when said jaws are closed, an elongated hollow extension receiving said set of jaws on one of its ends, handle means secured to that end of said extension opposite said jaws, said handle means including an internal cavity, trigger means disposed principally within said cavity in said handle means, a linkage assembly connecting said trigger means to said movable jaw so as to move said jaw betweEn its open and closed positions upon movement of said trigger means, said linkage assembly being housed within said hollow extension and said trigger means, and means biasing said movable jaw toward its open position, whereby said tool may be grasped in the hand of an operator at a position on the tool remote from the set of jaws and said jaws may be presented to a work position and said movable jaw moved between its open and closed positions without introducing the operator''s hand to the work position.
Claim 3
Dependent Claim
33 words
The tool of claim 1 wherein said extension is flexible and said linkage assembly includes a flexible cable means disposed within said flexible assembly and connecting said trigger means to said movable jaw.
Claim 4
Dependent Claim
38 words
The tool of claim 1 wherein the longitudinal axes of said handle and said extension intersect at an angle of about 55* and said handle extends from said extension in a direction away from said set of jaws.
Claim 5
Dependent Claim
46 words
The tool of claim 1 wherein said tooth means comprises a row of teeth disposed in the longitudinal center of one jaw of the set of jaws and said cavity means comprises an elongated slot in the longitudinal center of the other jaw of the set.
Claim 6
Dependent Claim
28 words
The tool of claim 1 wherein said tooth means includes a plurality of teeth, each of which is directed generally inwardly of said jaws when they are closed.
Claim 7
Dependent Claim
31 words
The tool of claim 1 and including shield means disposed between said handle and said set of jaws thereby isolating the operator''s hand from said jaws during use of said tool.
References Cited (Backward Citations)
US2428941A
Cited
US2662285A
Cited
US2759758A
Cited
US2790437A
Cited
US2777196A
Cited
US3146015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |