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.

Date of Patent:
May. 06, 2014

Filed:

Jul. 16, 2011
Applicants:

David J. Wojtowicz, Orland Park, IL (US);

Thomas St. Germain, Bridgeview, IL (US);

Mitchell Liss, Northbrook, IL (US);

AL Dunaj, Chicago, IL (US);

Inventors:

David J. Wojtowicz, Orland Park, IL (US);

Thomas St. Germain, Bridgeview, IL (US);

Mitchell Liss, Northbrook, IL (US);

Al Dunaj, Chicago, IL (US);

Assignee:

Edsal Manufacturing Co., Inc., Chicago, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25G 3/00 (2006.01); E21B 17/043 (2006.01); F16D 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A post coupler includes coupler flanges, reverse bend flanges extending therealong and tapered end projections extending longitudinally from said coupler flanges defining ends of the coupler, the length of the reverse bend flanges being less than the overall coupler length between ends of the rounded end projections, and the reverse bend flanges preferably oriented along outer surfaces of said coupler flanges.


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