William F Duffy

US Patent:

53931858, Feb 28, 1995

Filed:

Oct 1, 1993

Appl. No.:

8/130182

Inventors:

William J. Duffy - Midlothian IL

Assignee:

Illinois Tool Works Inc. - Glenview IL

International Classification:

F16B 1900

US Classification:

411510

Abstract:

A push-in fastener including a head and a shank, the shank including at least one resilient fin integrally formed along its length for insertion and retention of the fastener within an aperture of an article where the fin includes at least one engagement rib formed on either side thereof for contact with the edges of the aperture and for absorbing any wear or shear caused by the edges upon insertion or removal of the fastener so the fin remains intact and maintains the originally designed insertion and retention forces.

US Patent:

52901378, Mar 1, 1994

Filed:

Apr 26, 1993

Appl. No.:

8/051976

Inventors:

William J. Duffy - Midlothian IL

Assignee:

Illinois Tool Works Inc. - Glenview IL

International Classification:

F16B 1306
F16B 1900

US Classification:

411 60

Abstract:

A pin bushing having a body portion including a head member, a shank member and a tapered axial bore extending therethrough. First and second substantially perpendicular lateral slots extend through the body portion where the first slot enables insertion and initial retention of the shank within an aperture in an article and the second slot enables a pin to be releasably retained within the shank to lock the bushing within the aperture.