Extendable crane with folding conduit

Details Extendable crane with folding conduit Extendable crane with folding conduit

1974-04-19

1976-03-09

Schwadron, Martin P.

Fluid handling

Systems

Articulated or swinging flow conduit

212144, 214141, B67D 502, B66C 1700, B66C 2300

Patent

active

039425541

ABSTRACT:
It is known to construct various types of cranes such as swing-boom cranes employing extendable boom sections and hammerhead cranes with rotating, counter-balanced, cantilevered booms so that conduits extend between and are connected to parts of such cranes which are movable. Such structures may be improved by using as the conduit a plurality of rigid conduit sections connected together by rotary joints permitting said conduit sections to be rotated about parallel axes. Certain of these joints are located where the conduit is connected to parts of the crane. A rotary joint is also located between each adjacent connection of the conduit to the crane. The sections are dimensioned so that during operation of the crane the rigid sections cannot be moved so as to be aligned with one another. As a consequence of this the various portions of the conduit will fold in a desirable manner as the crane is operated.

REFERENCES:
patent: 2650718 (1953-09-01), Palmer
patent: 3445004 (1969-05-01), Grider et al.
patent: 3451427 (1969-06-01), Dollinger
patent: 3459222 (1969-08-01), McElroy
patent: 3622013 (1971-11-01), Swanson
patent: 3670930 (1972-06-01), Irie
patent: 3721260 (1973-03-01), Stahmer

Affiliated with

Also associated with

Rating

Extendable crane with folding conduit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Extendable crane with folding conduit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extendable crane with folding conduit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-826122