Thomas J Mcclure

US Patent:

51434997, Sep 1, 1992

Filed:

Apr 22, 1991

Appl. No.:

7/689206

Inventors:

Melvin Bobo - Cincinnati OH
Peter W. Mueller - Morrow OH
Thomas F. McClure - Middletown OH

Assignee:

General Electric Company - Cincinnati OH

International Classification:

F16B 39284

US Classification:

411247

Abstract:

A temperature-sensitive, deformable cylinder locknut for use in high temperature applications associated with the operation of a gas turbine engine provides a secure fastener lock which resists torsional and vibrational stresses which may otherwise act to unseat and disengage the bolt. The locknut includes an undeformed threaded portion, an unthreaded transitional cylindrical sleeve portion, and a deformable unthreaded cylindrical portion. A threaded shaft contacts the cylindrical sleeve with reduced surface engagement to minimize frictional interaction and define a spiral volume therebetween to ensure the establishment of a non-permanent lock.