Cutting by use of rotating axially moving tool – Means to drive tool – Including means to move tool along tool-axis
Reexamination Certificate
2005-10-28
2008-12-09
Bryant, David P (Department: 3726)
Cutting by use of rotating axially moving tool
Means to drive tool
Including means to move tool along tool-axis
C408S099000, C408S102000, C408S138000
Reexamination Certificate
active
07462004
ABSTRACT:
A drill fixture enabling drilling through hard objects in a confined area includes a housing, a threaded rod connected with the housing, and a tubular adjustment sleeve rotatably connected with the rod. A drill is arranged in the housing and has a drill bit extending in a forward direction. The sleeve is rotated relative the threaded rod for displacement along the length of the rod until the sleeve engages a fixed surface opposite the object to be drilled. With the sleeve rear portion engaging the fixed surface, further rotation of the sleeve displaces the housing in a forward direction during rotation of the drill bit so that the bit bores through the hard object until a hole is formed. Rotation of the sleeve in the opposite direction causes the drill bit to be retracted from the object. In lieu of a rotatable sleeve, a piston may be provided which is extended and retracted relative to the housing to provide a linear drilling force to the drill bit relative to a fixed surface.
REFERENCES:
patent: 28327 (1860-05-01), Parker
patent: 28328 (1860-05-01), Parker
patent: 42560 (1864-05-01), Chapman
patent: 79115 (1868-06-01), Hainque
patent: 130645 (1872-08-01), Lavery
patent: 142356 (1873-09-01), Sloan
patent: 212066 (1879-02-01), Steber
patent: 292345 (1884-01-01), Moritz
patent: 292522 (1884-01-01), Whitney
patent: 295694 (1884-03-01), Vinton
patent: 337599 (1886-03-01), Magnette
patent: 354085 (1886-12-01), Baker
patent: 365587 (1887-06-01), Davy
patent: 369120 (1887-08-01), Moffet
patent: 378944 (1888-03-01), Vinton
patent: 439567 (1890-10-01), Schoff
patent: 444256 (1891-01-01), Smith
patent: 446073 (1891-02-01), Myers
patent: 497261 (1893-05-01), Anderson
patent: 506954 (1893-10-01), Timolat et al.
patent: 620461 (1899-02-01), Lambkin
patent: 644753 (1900-03-01), Allen
patent: 663887 (1900-12-01), Halsey
patent: 666695 (1901-01-01), Renshaw
patent: 784301 (1905-03-01), Carll
patent: 941916 (1909-11-01), Figg
patent: 944955 (1909-12-01), Derrick et al.
patent: 966751 (1910-08-01), Jacobs
patent: 971755 (1910-10-01), Johnsen
patent: 1065163 (1913-06-01), Miller
patent: 1084324 (1914-01-01), Foley
patent: 1130770 (1915-03-01), Smedstad
patent: 1132113 (1915-03-01), Olson
patent: 1138276 (1915-05-01), Carll
patent: 1243100 (1917-10-01), Prosser
patent: 1265630 (1918-05-01), Donohue
patent: 1434946 (1922-11-01), Fiorillo
patent: 1607584 (1926-11-01), Bennett
patent: 1705232 (1929-03-01), Brantingson
patent: 1705384 (1929-03-01), Wikander
patent: 2376524 (1945-05-01), Talboys et al.
patent: 2405110 (1946-08-01), Bullock
patent: 2627295 (1953-02-01), Jackson
patent: 2643088 (1953-06-01), Hornack
patent: 2683375 (1954-07-01), Gerentes
patent: 2947204 (1960-08-01), Pine et al.
patent: 2973673 (1961-03-01), Grau
patent: 4484844 (1984-11-01), Williams
patent: 4818155 (1989-04-01), Belknap
patent: 4870730 (1989-10-01), Belknap
patent: 5322397 (1994-06-01), Spear
patent: 5676503 (1997-10-01), Lang
patent: 6095724 (2000-08-01), Hurt
patent: 2005/0276670 (2005-12-01), Freund
Bryant David P
Gates Eric A
Laubscher, Jr. Lawrence E.
Smart Tools Inc.
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