Implements or apparatus for applying pushing or pulling force – Hoisting truck – Single throw lever
Patent
1994-11-07
1996-09-03
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Hoisting truck
Single throw lever
254 93H, B60P 148
Patent
active
055516688
ABSTRACT:
A hydraulic jack with a restorable lever and a retaining device includes a positioning blind hole provided on one side of a base. The blind hole holds a compression spring which acts between the base and a lever holder. A supporting post on one side of the base is provided with a pin hole for accepting a retaining pin to hold the lever holder in place. When the retaining pin is removed for operation, the stored energy of the compression spring is released so that the lever is lifted up automatically each time when it is pressed downwardly. A V-shaped spring clip connects the lever to the lever holder. A forward end of the lever is provided with a gripping hole and has two side notches, thus shaping the gripping hole to enable the lever to be used for opening and closing of a releasing valve. A foot pedal or a handle can be attached to an end of the lever for ease of operating the hydraulic jack.
REFERENCES:
patent: 4151720 (1979-05-01), Vanderstappen
patent: 4656879 (1987-04-01), Jen
patent: 4825755 (1989-05-01), Takano
patent: 4850568 (1989-07-01), Hung
patent: 4895042 (1990-01-01), Wang
patent: 5433127 (1995-07-01), Messier
LandOfFree
Hydraulic jack with restorable lever and retaining device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic jack with restorable lever and retaining device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic jack with restorable lever and retaining device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1946328