Chucks or sockets – Socket type – Obliquely guided reciprocating jaws
Reexamination Certificate
2005-06-07
2005-06-07
Howell, Daniel W. (Department: 3722)
Chucks or sockets
Socket type
Obliquely guided reciprocating jaws
C279S902000
Reexamination Certificate
active
06902172
ABSTRACT:
A drill chuck has a chuck body centered on a longitudinal axis and formed with a plurality of forwardly open angled guides spaced about the axis. Respective jaws displaceable along the guides in the chuck body are each formed with a row of teeth. A tightening sleeve rotatably surrounding the body is axially fixed to a ring rotatable on the body about the axis and formed with a screwthread meshing with the teeth of the jaws so that rotation of the sleeve and ring in one direction moves the jaws radially together and opposite rotation moves them radially apart, A first axially elastically deformable spring seated in the chuck body bears axially forward on the ring, and a second axially elastically deformable spring seated in the chuck body bears axially rearward on the sleeve.
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patent: 0519412 (1992-12-01), None
Dubno Herbert
Howell Daniel W.
Rohm GmbH
Talbot Michael W.
Wilford Andrew
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