Michael Thomas Spellman

US Patent:

41726936, Oct 30, 1979

Filed:

Oct 7, 1977

Appl. No.:

5/840398

Inventors:

William D. Barton - Plainfield IN
Donald J. Hartley - Indianapolis IN
Joseph V. Matucheski - Indianapolis IN
Michael T. Spellman - Indianapolis IN
Clifford S. L. Yee - Indianapolis IN

Assignee:

Wallace Murray Corporation - New York NY

International Classification:

F04D 2938

US Classification:

416132A

Abstract:

A flexible fan blade construction of the type wherein a decamber limiter is carried by each spider arm and bears against one side of its associated fan blade to thereby limit flexing (decamber) thereof. According to this invention, the decamber limiter terminates short of the heel of each fan blade. High stress concentrations due to contact between the heel edge of each fan blade and its associated decamber limiter are avoided by this novel construction.

US Patent:

42420466, Dec 30, 1980

Filed:

Jun 15, 1978

Appl. No.:

5/915790

Inventors:

Joseph V. Matucheski - Indianapolis IN
Clifford S. L. Yee - Indianapolis IN
Michael T. Spellman - Indianapolis IN
Donald J. Hartley - Indianapolis IN
William D. Barton - Plainfield IN

Assignee:

Wallace Murray Corporation - New York NY

International Classification:

F04D 2938

US Classification:

416132A

Abstract:

A sheet metal construction for a fan spider. The spider arms each carry an integral rib running centrally along the arm and each rib is flat on its upper surface to mount a fan blade. The novelty of the invention resides in canting forwardly the spider arms. Such canting reduces certain stresses in the fan, thereby reducing cost of manufacture.

US Patent:

41053664, Aug 8, 1978

Filed:

Sep 14, 1976

Appl. No.:

5/723108

Inventors:

Michael T. Spellman - Indianapolis IN

Assignee:

Wallace Murray Corporation - New York NY

International Classification:

F04D 2938

US Classification:

416132A

Abstract:

A fan blade construction for an automobile cooling system. The twist angle of the blade, as measured by the rotation of an imaginary line joining the leading and trailing edges, varies linearly or non-linearly along the length of the blade, the leading edge of the blade is rigid and the trailing edge of the blade is flexible. In another embodiment, the fan blade is resiliently biased against a portion of its mounting arm to inhibit flutter.

US Patent:

40121682, Mar 15, 1977

Filed:

May 12, 1975

Appl. No.:

5/576728

Inventors:

Michael Thomas Spellman - Indianapolis IN

Assignee:

Wallace-Murray Corporation - New York NY

International Classification:

F04D 2938

US Classification:

416132A

Abstract:

A fan blade construction for an automobile cooling system. The twist angle of the blade, as measured by the rotation of an imaginary line joining the leading and trailing edges, varies linearly or non-linearly along the length of the blade, the leading edge of the blade is rigid and the trailing edge of the blade is flexible. In another embodiment, the fan blade is resiliently biased against a portion of its mounting arm to inhibit flutter.