Supports – Props and braces – Adjustable length
Patent
1999-04-09
2000-12-12
Ramirez, Ramon O.
Supports
Props and braces
Adjustable length
E04G 2500
Patent
active
061587052
ABSTRACT:
A tool for stabilizing and supporting a vehicle by forming a rigid member between a bearing surface and the vehicle comprising at least one member having a cylinder and a movable piston that protrudes axially from the cylinder at a cylinder end. The cylinder end is formed with a pair of inclined circumferential surfaces. A collar extends axially from the cylinder and slidably receives the protruding piston. The collar is formed with a pair of internal annular step surfaces corresponding to the cylinder end surfaces. The collar step surfaces and the cylinder circumferential surfaces are engagable to permit rotation and simultaneous axial movement of the collar with respect to the cylinder. A pin is selectively positionable at one of a plurality of holes along the piston for engagement with the collar to prevent movement of the piston with respect to the collar. A locking system is provided for releasably securing the collar against rotation relative to the cylinder. In use, the piston is extended from the cylinder and the pin is inserted through one of the holes along the piston to define an initial extended position. The collar is then rotated to move axially into engagement with the pin and locked in place with respect to the cylinder to define a final fixed extended position of the tool.
REFERENCES:
patent: 3851856 (1974-12-01), Berg
patent: 5515655 (1996-05-01), Hoffmann
patent: 5653415 (1997-08-01), Schworer
patent: 6019337 (2000-02-01), Brown
Cudmore Stephen R.
Maynard Andrew A.
Airshore International Direct Equipment West Ltd.
Ramirez Ramon O.
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