Chucks or sockets – Socket type – Resilient split socket
Patent
1999-01-05
1999-08-17
Bishop, Steven C.
Chucks or sockets
Socket type
Resilient split socket
81438, 279143, 285322, 403313, 408239R, B23B 3120
Patent
active
059382120
ABSTRACT:
An adaptive holder for interconnecting a non-locking bit shaft in a locking bit chuck provides an elongate body having a locking bit shaft at a first end and a chuck connector at the second end. The locking bit shaft is of hexagonal cross-section with an annular fastening groove defined spacedly inward of its outer end. The body is formed of elastically resilient material. The chuck connector provides a second body end defining a hexagonal fastening channel and a threaded external surface operatively carrying an annular collet threaded from its inner end outwardly to a point spacedly distant from its outer end with plural imperfectly formed threads in its outer end portion to cause radially inward motion of the body second end to move along the imperfect threads to releasably fasten a non-locking bit in the channel. The second end portion of the body may define one or more slots extending through the body to the fastening channel to aid radial motion of the body to fasten a bit.
REFERENCES:
patent: 146143 (1874-01-01), Olmsted
patent: 157357 (1874-12-01), Stetson
patent: 318466 (1885-05-01), Graham
patent: 323181 (1885-07-01), Mason
patent: 553531 (1896-01-01), Long
patent: 1195214 (1916-08-01), Hapgood
patent: 2370487 (1945-02-01), Poutie
patent: 2421174 (1947-05-01), Wyrick
patent: 2513839 (1950-07-01), Robertson
patent: 2931660 (1960-04-01), Barwinkel
patent: 4645473 (1987-02-01), Mochizuki
patent: 5709392 (1998-01-01), Barton
Bergman Keith S.
Bishop Steven C.
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