Patent ID: 6895840

Claim:
Water pump pliers comprising of two pincer parts crossing themselves in a connecting region, each of said pincer parts including a handle portion and a jaw, wherein said pincer parts are movably connected in said connecting region such that said first pincer part can be displaced relative to said second pincer part to adjust a law-opening-width and that said two pincer parts can reciprocally pivot, blocking means provided such that further shifting of said first pincer part is blocked when said jaws stop against a workpiece to be gripped, a one-piece spring element installed between said pincer parts and being rigidly connected at its ends with each of said handle portions of said two pincer parts in such a way, that, firstly, a releasing force (F), operating in an opening pivot direction of said jaws, acts upon said pincer parts, and, secondly, said spring element also acts upon said handle portion of said first pincer part with a torque directed around a spring fastening point ( 26 ) in such a way that said jaws automatically move to a fully opened opening width following a manual release of said pincer parts (handle portions).