Robert A Christensen

US Patent:

44008988, Aug 30, 1983

Filed:

Aug 13, 1981

Appl. No.:

6/292454

Inventors:

Robert B. Christensen - Kenosha WI
Lee F. Kramer - Gurnee IL

Assignee:

Dresser Industries, Inc. - Dallas TX

International Classification:

E02F 300
F16C 1102

US Classification:

37118A

Abstract:

A pivot assembly for mounting a bucket to a loader arm wherein shouldered pin adapters having a pin bore are tack welded in the bucket brackets so that when pounding occurs between the pin and pin bore, the pin adapter can be replaced to provide a new pin bore. The pin adapters are located on the interior sides of the bucket brackets and the external corner is indented to define a seal groove which provides an additional seal between the loader arm and the pivot pin.

US Patent:

41756380, Nov 27, 1979

Filed:

Dec 4, 1978

Appl. No.:

5/965855

Inventors:

Robert F. Christensen - Racine WI

Assignee:

J. I. Case Company - Racine WI

International Classification:

B62D 508

US Classification:

180140

Abstract:

A control mechanism for a steering system for individually or simultaneously controlling the turning movements of the front and rear wheels of a vehicle is disclosed herein. The steering system is capable of controlling the movement of the rear wheels in a plurality of modes with respect to the front wheels and one mode in which the rear wheels are independently controlled. The control mechanism includes a control member that is pivoted on the frame of the vehicle to a plurality of positions to move an actuating switch that is part of the control means to a plurality of positions corresponding to the respective modes of steering and actuating means that cooperates with a signal producing device that produces a control signal to independently control the turning movement of the rear wheels.

US Patent:

41543491, May 15, 1979

Filed:

Nov 3, 1977

Appl. No.:

5/848165

Inventors:

Robert B. Christensen - Kenosha WI

Assignee:

International Harvester Company - Chicago IL

International Classification:

B66F 912

US Classification:

414720

Abstract:

A loader bucket is provided with a plurality of leaf springs appended to the bucket for interaction with the bucket support linkage. The leaf springs impose forces on the bucket link pins preventing undesirable movement between the bucket and the support linkage when the bucket is rolled into a load transporting position.

US Patent:

43951937, Jul 26, 1983

Filed:

Apr 3, 1981

Appl. No.:

6/251004

Inventors:

Robert B. Christensen - Kenosha WI
Lee F. Kramer - Waukegan IL

Assignee:

Dresser Industries, Inc. - Dallas TX

International Classification:

B66F 906

US Classification:

414722

Abstract:

A stress distributing plate member for a bucket tilting hinge bracket attached to the exterior wall of a material handling bucket.