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:
Nov. 26, 2013
Filed:
Apr. 14, 2011
Danny Robey, Benton, IL (US);
Todd Taylor, Benton, IL (US);
Danny Robey, Benton, IL (US);
Todd Taylor, Benton, IL (US);
Other;
Abstract
A percussion hammer bit retention system including a retainer having at least three (3) tabs, a hammer bit having first and second elevated surfaces that each define pathways and slot openings for rotational receipt of the tabs, and a custom chuck further including slot openings for receipt of the tabs. The application of tabs in combination with the elevated surfaces and indexed slot openings distinguish the present invention over the prior art. In application, in order to fully separate the retainer from the assembly, the tabs are indexed in a manner that only allows them to pass through the aligned slot openings on the first elevated surface in one (1) position every 360 degrees, and then through the aligned slot openings on the second elevated surface in one (1) position every 360 degrees, and then through the indexed slots on the custom chuck in one (1) position every 360 degrees.