The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 2002
Filed:
Sep. 18, 2000
Applicant:
Inventor:
James A. Cunningham, St. Mary Parish, LA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 2/100 ;
U.S. Cl.
CPC ...
F16L 2/100 ;
Abstract
A locked connection comprises a circular groove around a pin or inside member. A box or outside member provides a series of passages tangential to the groove in a made up position of the box and pin. One or more locking pins extend through the passages. When the box and pin tend to move relative to each other, the locking pin is placed in shear in a path extending along the long dimension of the pin whereby a large shear area is provided by a small diameter locking pin.