George P Mathews

US Patent:

45276838, Jul 9, 1985

Filed:

Mar 22, 1983

Appl. No.:

6/477716

Inventors:

George P. Mathews - Portage MI

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

F16D 1100

US Classification:

192111A

Abstract:

An improved two-way torque limiting coupling (10) of the type utilizing a single helical coil clutch (18) and an automatic slack adjuster utilizing same is provided. The coupling provides a driving connection between a first (12) and a second (14) rotatable adjacent members. The first member includes a bore (24) opening to an end (20) in which one end of coil clutch is received in interference fit to define an internal clutch interface (34) and the other member defines an annular outer periphery (26) about which the other end of the coil clutch is received in an interference fit to define an external clutch interface (36). For the direction of rotation tending to expand the coil clutch (18), the coupling will slip at the external interface (36) which is the low maximum torque transfer direction of rotation for that interface and for the direction of rotation tending to contract the coil clutch (18), the coupling will slip at the internal interface (34) which is the low maximum torque transfer direction of rotation for that interface.

US Patent:

49058002, Mar 6, 1990

Filed:

Sep 5, 1986

Appl. No.:

6/903622

Inventors:

George P. Mathews - Portage MI

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

F16D 5122

US Classification:

188329

Abstract:

An improved S-cam (100) for expanding internal shoe (20) drum brakes (10) is provided. The working surfaces (116) of the S-cam are provided at their ends with an extremely high rise/low mechanical advantage portion (122) providing a warning ramp to indicate to the operator that brake relining is required and to minimize the possibility of cam flip.