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US 6,199,459 B1Granted
Adjustable pliers
AssigneeSuper-Ego Tools, S.A.
InventorManuel Azkona
Life of this patent
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AssigneeSuper-Ego Tools, S.A.
InventorManuel Azkona
Estimating the term…
Improved adjustable pliers, of the kind comprised of different bodies bearing the jaws of the mouth, and which pivot together on an axle-pivot, which moves in a groove, foreseen in one of the bodies, which has monodirectional teeth on one of its larger walls, mounting a catch, on said axle-pivot foreseen in the other body, which defines combined monodirectional teeth and an operating arm to release these teeth at the user's will. This catch has a spring, whose aim is to keep it in a fastened position, until the catch arm is activated.
In adjustable pliers having two bodies which form a jawed mouth and pivot about an axle pivot, the axle pivot mounted on one of said bodies and the other of said bodies has a groove in which said axle pivot moves to allow for adjustment of said jawed mouth, the improvement comprising:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
No related US applications are recorded in the indexed filing history.
Term ended 22 Dec 2019 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.
This invention deals with improved adjustable pliers.
Pliers with two bodies that pivot and slide together are already well-known.
The research has been focused, on the one hand, on the shape of the mouth and its jaws—which determine the efficiency of the pliers—and on the other, on the way to position the two bodies together—and keep them positioned—in order to determine the correct position of these bodies when gripping tubes of different diameters.
In order to understand the object of this invention better, a preferential practical execution is shown on the drawings, subject to accessory changes that take nothing away from the basics.
FIG. 1 shows a general schematic view of improved adjustable pliers according to the invention, where the following references and peculiarities are written down:
1a, 1b.—Bodies.
The pliers advocated are of the type comprised of two bodies (1a), (1b), which pivot together on an axle-pivot (3) belonging to the body (1a) and which moves to adopt different positions on a groove (2) in the other body (1b).
Each body (1a), (1b) has a jaw (12), (11), which when closed, leaves an empty space where the part to be handled (4) is gripped, the union of both jaws (11), (12) forming the mouth of the pliers.
In accordance with the invention, and according to the execution shown, this groove (2) foreseen in the body (1b) has, on one of its larger walls, monodirectional teeth (21).