Chucks or sockets – Socket type – Radially reciprocating jaws
Reexamination Certificate
2005-04-05
2005-04-05
Howell, Daniel W. (Department: 3722)
Chucks or sockets
Socket type
Radially reciprocating jaws
C279S014000, C279S155000, C007S158000, C007S165000, C408S240000
Reexamination Certificate
active
06874791
ABSTRACT:
A chuck apparatus is provided for holding a tool bit. The tool bit includes a drill, two blades, another working head and an annular groove defined therein. The chuck apparatus includes a socket, a ball detent, a collar and a joint. The socket defines an axial hole, a peripheral hole communicated with the axial hole and two slots for receiving the blades. The ball detent is put in the peripheral hole for insertion in the annular groove. The collar is movably mounted on the socket between a locking position for pushing the ball detent into the annular groove and a releasing position for allowing the ball detent to leave the annular groove. The joint includes a first section secured to the socket and a second section for connection with a motor.
REFERENCES:
patent: 4092753 (1978-06-01), Fuhrmann
patent: 5604948 (1997-02-01), McMahon et al.
patent: 5901622 (1999-05-01), Sweeny
patent: 6000888 (1999-12-01), Hartman
patent: 6270085 (2001-08-01), Chen et al.
patent: 6325393 (2001-12-01), Chen et al.
patent: 6572311 (2003-06-01), Vasudeva
Chang-Kao Chiu-Man
Chen Tsai-Ching
Chen Tsai-Ching
Howell Daniel W.
Kamrath Alan D.
Nikolai & Mersereau , P.A.
Talbot Michael W.
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