Brian Edward Cramer

US Patent:

49813900, Jan 1, 1991

Filed:

Jul 13, 1989

Appl. No.:

7/379694

Inventors:

Arthur A. Cramer - Hinsdale IL
Brian S. Cramer - Manhattan IL

Assignee:

The Ray Engineering Co., Ltd.

International Classification:

F16B 704

US Classification:

403371

Abstract:

A tolerance ring is provided with radial projections to achieve unidirectional or bidirectional axial retention, or angular retention relative to at least one abutting cylindrical surface. Spaced tabs, dimples or a continuous flange formed at one or both axial ends of the ring provide the axial retention function by engaging with one or two shoulders on the abutting cylindrical surfaces, and a radially projecting tab at a lateral end of the split ring provide the angular retention function by engaging in a groove in the abutting cylindrical surface. The axial and angular retention projections can project radially inwardly or outwardly depending on the particular application, and the axial and angular retention projections can be used individually or in combination as desired.

US Patent:

48284238, May 9, 1989

Filed:

Apr 6, 1987

Appl. No.:

7/034693

Inventors:

Arthur A. Cramer - Hinsdale IL
Brian S. Cramer - Manhattan IL

International Classification:

F16D 106

US Classification:

403372

Abstract:

Improvements to tolerance rings are provided permitting them to be utilized in holding cylindrical members within sheet panels and providing positive axial retention of the ring in the sheet panel; permitting them to be used in centered and half-centered mounting arrangements without requiring the formation of shoulders on the engaged members, but rather through the use of an annular split ring shim; and permitting them to be used to restore the effective diameter of worn parts by providing the ring with a bowed shape.

US Patent:

47906839, Dec 13, 1988

Filed:

Oct 5, 1987

Appl. No.:

7/104251

Inventors:

Arthur A. Cramer - Hinsdale IL
Brian S. Cramer - Manhattan IL

International Classification:

B25G 334

US Classification:

403372

Abstract:

A method of using a tolerance ring in conjunction with a relatively soft material while preventing deformation of the soft material is provided through the use of a split cylinder shim between the tolerance ring and the soft material. This arrangement can be used whether the soft material is surrounded by the tolerance ring, surrounds the tolerance ring or both.