Adrian Quintay Webb

US Patent:

20130206512, Aug 15, 2013

Filed:

Feb 14, 2012

Appl. No.:

13/372834

Inventors:

Adrian J. Webb - Raleigh NC, US
Bart A. Fisher - Roanoke IL, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

F16N 21/02
F01M 11/04

US Classification:

1841053

Abstract:

A grease fitting is disclosed. The grease fitting has an outer shell. The outer shell encloses an internal cavity. The outer shell includes a ball check, a hexagonal portion, and a thread blank. The ball check is located at a first end of the outer shell. The ball check is configured to receive grease. The thread blank is located at a second end of the outer shell. The thread blank includes hardened lead threads configured to form threads in an untapped hole. In an embodiment, the grease fitting may include a thread guide extending from the thread blank.

US Patent:

20130206513, Aug 15, 2013

Filed:

Feb 14, 2012

Appl. No.:

13/372925

Inventors:

Adrian J. Webb - Raleigh NC, US
Bart A. Fisher - Roanoke IL, US

Assignee:

Carterpillar Inc. - Peoria IL

International Classification:

F16N 21/02
B23P 11/00

US Classification:

1841053, 29456

Abstract:

A linkage pin assembly is disclosed. The linkage pin assembly includes a grease fitting, a linkage pin, and a coupling. The grease fitting includes an outer shell. The outer shell encloses an internal cavity. The outer shell includes a thread blank having at a second end of the outer shell. The thread blank includes hardened lead threads. The hardened lead threads are induction hardened to at least RKW C 53. The linkage pin has an untapped hole. The coupling is between the grease fitting and the linkage pin. The coupling is formed when the hardened lead threads of the grease fitting create corresponding threads in the untapped hole of the linkage pin when the grease fitting is inserted into the linkage pin.