DOUBLE ACTING SPOOL-SHAPED FLUID CYLINDER LOCK
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United States of America Patent
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N/A
Issued Date -
Aug 28, 2014
app pub date -
Feb 22, 2013
filing date -
Feb 22, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A brake for a rod includes a spool-shaped lock having conical opposed open ends communicating with a cylindrical opening. Positioned within the cylindrical opening is an inwardly projecting shoe for engaging the outer cylindrical surface of a rod to be controlled. A pair of conical members are positioned in association with the mating conical ends of the spool and are housed in a cage for holding the components in an assembled position when a rod to be controlled is inserted through the conical members and the spool-shaped locking member. The conical members are biased to a locking position and a control rod is coupled to the spool and actuated by a safety release mechanism to allow the rod to move. In a preferred embodiment, a gas spring with the present locking mechanism is coupled between two telescopic tubes defining one or more adjustable legs for a table or chair.
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