Drill chuck
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 7, 2010
Grant Date -
Jul 5, 2007
app pub date -
Nov 21, 2006
filing date -
Dec 7, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A drill chuck has a body formed with a forwardly open threaded bore and a holder sleeve rotatable on the body and formed with a plurality of forwardly open angled guides angularly equispaced about the axis. Respective jaws are shiftable radially along the guides between a widely spaced outer position and a closely spaced inner position. Each jaw has a central tool-engaging tooth and a pair of faces flanking the respective tooth, and each tooth and the adjacent flanking faces are so dimensioned and oriented relative to each other that in the inner position the flanking faces of adjacent jaws bear on one another. A pusher threaded into the bore bears axially forward on the jaws and is angularly coupled to the jaws and holder sleeve so that relative rotation or the chuck body and pusher moves the jaws between their inner and outer positions.
First Claim
Other Claims data not available
