Implements or apparatus for applying pushing or pulling force – Hoisting truck – Single throw lever
Reexamination Certificate
2007-02-13
2007-02-13
Wilson, Lee D. (Department: 3723)
Implements or apparatus for applying pushing or pulling force
Hoisting truck
Single throw lever
C254S00200C, C254S01000C
Reexamination Certificate
active
11346787
ABSTRACT:
An automobile jack that comprises a hydraulic system. The jack includes a lockout button and a release mechanism comprised of a variable rate, spring-loaded trigger release mechanism which is located on the grip handle. Moving the jack handle upward and downward causes the hydraulic jack arm to raise and by disengaging the lock out button, the release mechanism allows the hydraulic jack arm to be moved downward. Once the desired height is reached, the lockout button is engaged. By engaging the lockout button, the jack arm is prevented from being moved downward. When it is time to maneuver the jack again, the lockout button has to be disengaged to allow for movement downward.
REFERENCES:
patent: 1513217 (1924-10-01), Bunker
patent: 1569589 (1926-01-01), Stocker
patent: 2039896 (1936-05-01), Green
patent: 4289300 (1981-09-01), Weisser et al.
patent: 6086047 (2000-07-01), Lee
patent: 6966542 (2005-11-01), Bettencourt
patent: 2005/0092973 (2005-05-01), Tatsumi
Galasso Raymond M.
Galasso & Associates LP
Wilson Lee D.
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