Gerald D Shepherd

US Patent:

6513552, Feb 4, 2003

Filed:

Sep 28, 2001

Appl. No.:

09/965321

Inventors:

Gerald D. Shepherd - Tulsa OK

Assignee:

General Machinery of Pittsburgh, Inc. - Pittsburgh KS

International Classification:

F16L 917

US Classification:

138109, 138131, 138134, 138135, 138143, 138144

Abstract:

A drain hose that connects to the movable roof of a petroleum storage tank. The hose extends downwardly through the material stored in the tank and to a discharge at the lower portion of the tank. The hose is comprised of (a) an inner stainless steel tube(or hose) having a stainless steel over-braid and (b) a spirally wound outer tube (or hose) also of stainless steel. The inner hose is connected to flanges that have ferrules extending therefrom. The outer protective hose is captured in a free floating manner by the ferrules such that the outer hose is allowed to move along or slide over the inner hose without escaping the end ferrules.

US Patent:

40068323, Feb 8, 1977

Filed:

Jun 18, 1975

Appl. No.:

5/587951

Inventors:

Marvin L. Auxer - Tulsa OK
Floyd E. McCann - Tulsa OK
Gerald D. Shepherd - Tulsa OK

Assignee:

Unit Rig & Equipment Co. - Tulsa OK

International Classification:

E02F 381
E02F 384
F16F 700

US Classification:

214146R

Abstract:

Apparatus for dampening the closing of a heavy door of the type mounted along a hinge axis on a heavy movable member such as a digging bucket for a shovel, said dampening apparatus comprises a crank pivotally mounted intermediate its ends on said movable member adjacent said hinge axis, linkage means pivotally mounted adjacent one end thereof on said door and pivotally connected adjacent an opposite end to one end of the crank, a cushioning device having a lower pivotal connection pivotally connected to the crank at the end thereof opposite from the first-mentioned end and an upper pivotal connection pivotally connecting the cushioning device to the movable member, and the cushioning device comprises a telescopic rubber snubber.