Load support mounted control arrangement for fluid pressure oper

Details Load support mounted control arrangement for fluid pressure oper Load support mounted control arrangement for fluid pressure oper

1997-05-12

1998-06-30

Walsh, Donald P.

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

251294, B66D 108

Patent

active

057721840

ABSTRACT:
A control arrangement for a fluid pressure operated hoist has a load mounted handle assembly including tubular handle portion slidable on a support rod attached to the hoist cable, and a bracket fixed at one end to the handle and extending alongside and offset from said support rod. A three position spring centered valve is mounted to the bracket, with a pair of pins each engaging one end of a valve element and a respective fixed flange on the support rod allowing valve operation by movement of the handle to block, vent, or pressurize a hoist fluid chamber to hold, lower, or raise the load.

REFERENCES:
patent: 1630810 (1927-05-01), Simpson
patent: 3057162 (1962-10-01), Lee
patent: 3125200 (1964-03-01), Kaman
patent: 3554091 (1971-01-01), Spyridakis
patent: 3756563 (1973-09-01), Stone
patent: 3856266 (1974-12-01), McKendrick
patent: 3933388 (1976-01-01), Conboy
patent: 3960362 (1976-06-01), Griffiths et al.
patent: 3998432 (1976-12-01), Uldricks et al.
patent: 4243060 (1981-01-01), McKendrick
patent: 4445538 (1984-05-01), Bilski

Affiliated with

Also associated with

Rating

Load support mounted control arrangement for fluid pressure oper does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Load support mounted control arrangement for fluid pressure oper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load support mounted control arrangement for fluid pressure oper will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1851327