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Fifth wheelAn improved fifth wheel for a tractor trailer rig, characterized by a first subassembly including a wear plate was developed and modified to be mounted on a downwardly facing surface of a trailer. A king pin projected normally therefrom, and a second subassembly is adapted to be pivotally mounted on an upwardly facing surface of a tractor. The king pin is brought into contiguous relation with the first sub assembly. A receiver for capturing the king pin is included along with a safety means responsive to a failure of the king pin or its latching mechanism for joining the first subassembly with the second subassembly.
Document ID
19770007534
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Albrecht, W. P. (NASA Hugh L. Dryden Flight Research Center Edwards, CA, United States)
Sparks, R. H. (NASA Hugh L. Dryden Flight Research Center Edwards, CA, United States)
Date Acquired
August 8, 2013
Publication Date
December 7, 1976
Subject Category
Mechanical Engineering
Report/Patent Number
Patent Number: NASA-CASE-FRC-10081-1
Patent Number: US-PATENT-3,995,877
Patent Application Number: US-PATENT-APPL-SN-598504
Accession Number
77N14477
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-FRC-10081-1|US-PATENT-3,995,877
Patent Application
US-PATENT-APPL-SN-598504

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