Metal working – Method of mechanical manufacture – Converting
Reexamination Certificate
2008-07-21
2010-11-16
Cozart, Jermie E (Department: 3726)
Metal working
Method of mechanical manufacture
Converting
C029S402010, C029S402030, C029S402080, C029S525110, C030S391000
Reexamination Certificate
active
07832072
ABSTRACT:
Provided is an apparatus for lifting a retractable lower safety-guard on a circular saw. In one representative implementation, an actuator is attached to the circular saw and an elongated arm is coupled to the actuator such that operating the actuator causes the elongated arm to lift. In addition, an engagement element is attached to the retractable lower safety-guard of the circular saw. When lifted, the elongated arm engages the engagement element, thereby retracting the retractable lower safety-guard of the circular saw. Preferably, the actuator is configured, and is located sufficiently close to a power switch for the circular saw, so that the actuator can be operated simultaneously with the power switch using a single hand. Also provided are retrofitting techniques for attaching such a device to an existing circular saw.
REFERENCES:
patent: 1102018 (1914-06-01), Dodds
patent: 1655916 (1928-01-01), Neuberth
patent: 1738896 (1929-12-01), Hansen
patent: 1780174 (1930-11-01), Crowe
patent: 1811577 (1931-06-01), Crowe
patent: 1813231 (1931-07-01), Crowe
patent: 2342052 (1944-02-01), Jimerson et al.
patent: 2722246 (1955-11-01), Arnoldy
patent: 2737985 (1956-03-01), Utz
patent: 2790468 (1957-04-01), Wilhide
patent: 2828784 (1958-04-01), Damijonaitis
patent: 2963056 (1960-12-01), Rickford
patent: 3063481 (1962-11-01), Sutherland
patent: 3262471 (1966-07-01), McCarty
patent: 3410325 (1968-11-01), Winther
patent: 3441067 (1969-04-01), Forcier
patent: 3491808 (1970-01-01), Grieb
patent: 3613748 (1971-10-01), De Pue
patent: 3706332 (1972-12-01), George
patent: 3730239 (1973-05-01), Kaman et al.
patent: 3787973 (1974-01-01), Beisch et al.
patent: 3805639 (1974-04-01), Peter
patent: 3880032 (1975-04-01), Green
patent: 4672746 (1987-06-01), Zeilenga
patent: 4685214 (1987-08-01), Shearon et al.
patent: 4693008 (1987-09-01), Velie
patent: 4811488 (1989-03-01), Press
patent: 4892022 (1990-01-01), Cotton et al.
patent: 5075976 (1991-12-01), Young
patent: 5370025 (1994-12-01), Itzov
patent: 5531147 (1996-07-01), Serban
patent: 5638731 (1997-06-01), Garuglieri
patent: 5699705 (1997-12-01), Sibbet
patent: 5778747 (1998-07-01), Chen
patent: 5832614 (1998-11-01), Gallagher et al.
patent: 5850697 (1998-12-01), Welch
patent: 6014813 (2000-01-01), Merino
patent: 2005/0252012 (2005-11-01), Johnson
PCT International Search Report and Written Opinion of the International Searching Authority mailed Mar. 20, 2007 in corresponding application PCT/US06/35106.
Web page printouts from http://www.sawguarddog.com/cart/ on Sep. 23, 2008.
Grimaldo Samuel
Larkin James M.
Tracy Jack R.
Cozart Jermie E
Joseph G. Swan, P.C.
SJ2 Industries, LLC
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