Water-pump pliers

• US 3,894,451 A
• Filed: 02/06/1974
• Issued: 07/15/1975
• Est. Priority Date: 02/23/1973
• Status: Expired due to Term

• Current Assignee: Karl Putsch
• Original Assignee: Karl Putsch
• Inventors: Putsch, Karl
• Primary Examiner(s): Jones, Jr., James L.
• Application Number:
  US05/440,241
• Time in Patent Office: 524 Days
• Field of Search: 81/425R,426,418
• US Class Current: 81/424.5
• CPC Class Codes: B25B 13/505 Pivotally moving or adjustable
• CPC Class Codes: B25B 7/02 Jaws
• CPC Class Codes: B25B 7/10 with adjustable fulcrum

Abstract

Water-pump pliers which comprise relatively displaceable plier handles carry jaws which continue from the handles, these jaws having recesses forming the plier opening and lying on both sides of a jaw-junction plane. These jaw recesses define two deepest points thereof as seen in a longitudinal direction of the jaws and the two deepest points are staggered with respect to each other.

Claims

1. A water-pump pliers comprising:

a pair of elongated handles having hand-grip portions;

pivot means pivotally interconnecting said handles at a fulcrum shiftable along one of said handles, said pivot means including an elongated slot with undulating flanks formed in said one of said handles and a pin receivable in said slot and fixed to the other of said handles for selective positioning along said slot;

respective jaws formed on said handles at ends thereof opposite said portions across said fulcrum and projecting transversely from said handles, said jaws having confronting recesses of triangular configuration with each recess having a vertex, a long side and a short side, the vertices and said recesses being staggered longitudinally along said jaws with respect to one another, the triangles of said recesses defining a parallelogram and having a common base along a diagonal of said parallelogram corresponding to a junction plane of said jaws in a closed position thereof, said jaws having confronting faces lying along said plane on opposite sides of said parallelogram;

a set of sawtooth-shaped teeth formed on the long side of the recess of an upper one of said jaws and turned in the direction of said fulcrum;

a set of sawtooth-shaped teeth formed on the long side of the recess of the other jaw and oriented in the opposite direction; and

respective rows of teeth along each of said faces on opposite sides of said parallelogram.