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Collapsible mobile base for cable hoists
   
Document Number
US Patent 5090667
Issued Date
February 25, 1992
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Abstract
A portable cable hoist mechanism is provided which incorporates a wheel mounted base structure having base legs that are capable of being unlocked and folded or otherwise moved to an out-of-the-way position for storage or handling. The base forms a framework to which the extendible base legs are movably secured. Latch members fixed to each of the base legs are projected through latch receptacles in the base framework when the base legs are fully extended. Locking elements establish locking engagement with the respective latch elements to secure the base legs at the extended positions thereof.
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Collapsible mobile base for cable hoists - US Patent 5090667 Drawing
Drawing from US Patent 5090667
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Number of Claims:
20
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Owner
Summer Mfg. Co., Inc. (Houston, TX)
Published
February 25, 1992
Application Number
07/621,048
Filed
December 3, 1990
US Classification
254/326   254/387
Int'l Classification
B66F   9/06   (20060101)  
Attorney/Law Firm
USPTO Field of Search
254/2R   254/2C   254/4R   254/4C   254/325   254/326   254/327   254/335   254/336   254/387   254/323   280/47.2   280/47.29   280/641  
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