Economical lifting device-jack stand
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United States of America Patent
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-
Feb 17, 2004
Grant Date -
Nov 27, 2003
app pub date -
May 23, 2002
filing date -
May 23, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An economical jack stand for use with a power unit has a rectangular base plate with a tubular housing having a lower end attached to the base plate. A 'U' shaped ratchet shaft with ratchet teeth on the forward edges thereof, is telescopically inserted within the housing and is extendable and retractable therein. The jack stand has a pair of pawls interconnected by a pin, with each pawl adapted to be engagable with a respective tooth on the ratchet shaft, and with the pin pivotally attached to the upper end of the housing. An actuator spring is secured to the pin forming a handle for rotating the pawls into engagement with the teeth of the shaft, and further for rotating the pawls for disengagement from the teeth of the shaft. The components are suitably formed from standard sheet metal and metal plate stock with minimal machining and welding required to form and assemble the economical jack stand.
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