Steel retainer for rock drill

Details Steel retainer for rock drill Steel retainer for rock drill

2006-05-16

2006-05-16

Howell, Daniel W. (Department: 3722)

Chucks or sockets

Socket type

Lost motion

C279S077000

Reexamination Certificate

active

07044479

ABSTRACT:
A simple and positive drill steel retainer comprises a retainer and a latch. The retainer cannot be opened until the latch is disengaged. The latch is held in the engaged position by a spring. The retainer and latch can be easily operated with one hand.

REFERENCES:
patent: 1119330 (1914-12-01), Wakfer
patent: 1212576 (1917-01-01), Sinclair
patent: 1503932 (1924-08-01), Wilhelm et al.
patent: 1612784 (1926-12-01), Gartin
patent: 1675432 (1928-07-01), Smith
patent: 1753249 (1930-04-01), Pearson
patent: 1800377 (1931-04-01), Downing
patent: 1865340 (1932-06-01), Slatcher
patent: 1967500 (1934-07-01), Curtis
patent: 2114047 (1938-04-01), Curtis
patent: 2406132 (1946-08-01), Calaman
patent: 2958534 (1960-11-01), Fuehrer
patent: 3454284 (1969-07-01), Moores, Jr.
patent: 5330202 (1994-07-01), Kimberlin et al.
patent: 2093378 (1982-09-01), None
698 1999 Tamco Catalog p. 26.
52278D 1999 Ingersoll—Rand Catalog.
2001 Boart Longyear HD1704.

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