Swiveling handle mounting mechanism of a hydraulic garage jack

Details Swiveling handle mounting mechanism of a hydraulic garage jack Swiveling handle mounting mechanism of a hydraulic garage jack

2006-12-08

2008-10-07

Wilson, Lee D (Department: 3723)

Implements or apparatus for applying pushing or pulling force

Hoisting truck

Single throw lever

C254S00200C, C254S00800R

Reexamination Certificate

active

07431265

ABSTRACT:
A swiveling handle mounting mechanism mounted on the pump of the hydraulic unit of a hydraulic garage jack is disclosed to include a seat affixed with a pressure plate to the pump beyond the oil return valve of the hydraulic unit, a swiveling holder horizontally rotatably coupled to the seat beneath the pressure plate, a handle sleeve vertically pivotally connected to the swiveling holder and holding an operating handle for driving the pump to pump out the hydraulic fluid for lifting the load, a locking mechanism installed in the swiveling holder at one side for locking the handle sleeve to the swiveling holder, and a pedal pivoted to the swiveling holder for operation by the user to open a release valve for allowing return of the hydraulic fluid.

REFERENCES:
patent: 4277048 (1981-07-01), Okuda
patent: 4653902 (1987-03-01), Hester
patent: 4850568 (1989-07-01), Hung
patent: 5431369 (1995-07-01), Hung
patent: 5551668 (1996-09-01), Hung
patent: 6086047 (2000-07-01), Lee
patent: 6505816 (2003-01-01), Hung

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