Lee S Kramer

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:

45053391, Mar 19, 1985

Filed:

Jun 14, 1982

Appl. No.:

6/388569

Inventors:

Lee F. Kramer - Waukegan IL
Ronald K. Schantz - Libertyville IL
Steven C. Kirkham - McHenry IL
Charles M. Tschanz - Lindenhurst IL

Assignee:

Dresser Industries, Inc. - Dallas TX

International Classification:

E02F 376
F16B 1100

US Classification:

172812

Abstract:

A hydraulic circuit for pitch and tilt control of a dozer blade attached to push arms on a vehicle with a pitch ram connected between one push arm and the blade and a dual actuator consisting of a second pitch ram and a tilt ram connected at their head ends. A pitch valve directs hydraulic fluid to and from the pitch rams with a diverter/combiner valve interposed therebetween to assure a flow of fluid either to said rams or from said rams at equal rates. Pilot-operated check valves hydraulically lock the pitch rams until opened by pressure directed from said pitch valve. Tilt and lift valves directs fluid pressure to and from the tilt ram and a lift ram respectively with regeneration capability for both tilt and lift functions.

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.