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Hydraulic lifting deviceA piston and cylinder assembly is disclosed which is constructed of polyvinyl chloride that uses local water pressure to perform small lifting tasks. The chamber is either pressurized to extend the piston or depressurized to retract the piston. The present invention is best utilized for raising and lowering toilet seats.
Document ID
19910004420
Acquisition Source
Legacy CDMS
Document Type
Other - Patent Application
Authors
Terrell, Kyle (Sverdrup Technology, Inc., Bay Saint Louis MS., United States)
Date Acquired
September 6, 2013
Publication Date
June 28, 1990
Subject Category
Mechanical Engineering
Report/Patent Number
NAS 1.71:SSC-00008-1
Patent Application Number: US-PATENT-APPL-SN-545178
Patent Number: NASA-CASE-SSC-00008-1
Report Number: NAS 1.71:SSC-00008-1
Accession Number
91N13733
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-SSC-00008-1
Patent Application
US-PATENT-APPL-SN-545178

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