Fifth wheel hitch warning interlock device

Details Fifth wheel hitch warning interlock device Fifth wheel hitch warning interlock device

1995-06-01

1997-04-29

Mullen, Thomas

Communications: electrical

Land vehicle alarms or indicators

For trailer

280432, 410 64, G08B 2100

Patent

active

056253354

ABSTRACT:
A device for monitoring operation of a lock lever of a fifth wheel trailer hitch. The inventive device includes a switch mounted to a fifth wheel hitch and responsive to a position of either the lock lever or an air cylinder actuator rod coupled to the lock lever. The switch is electrically coupled to an interlock solenoid and an indicator light for respectively blocking movement of the trailer raise/lower lever and indicating incomplete coupling of a trailer to the fifth wheel hitch.

REFERENCES:
patent: 2387625 (1945-10-01), Walther et al.
patent: 3444825 (1969-05-01), Rollins
patent: 3535679 (1970-10-01), Connors
patent: 3697974 (1972-10-01), Harris et al.
patent: 4472100 (1984-09-01), Wagner
patent: 5477207 (1995-12-01), Frame, Sr. et al.
patent: 5516138 (1996-05-01), Fontaine

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