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:
Nov. 06, 2012

Filed:

Apr. 27, 2010
Applicant:

John A. Ruvang, Bartonville, TX (US);

Inventor:

John A. Ruvang, Bartonville, TX (US);

Assignee:

Black Cat Blades Ltd., Edmonton, Alberta, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 9/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

A fastening method and adapter configuration for mounting an excavation tooth to an excavation implement lip. A fastening system for the adapter can include a retainer which is receivable in an opening formed through the implement lip. The retainer cannot be removed from the opening while the adapter remains fully engaged with the lip. A method of fastening an adapter to an excavation implement lip can include: installing a retainer in an opening formed through the lip; then engaging the adapter with the retainer and the lip; and then securing the adapter to the lip by biasing the retainer forward. Another fastening system can include a retainer which is receivable in an opening formed through an excavation implement lip, with the retainer including one or more movable teeth and one or more stationary serrations. A wedge biases the retainer forward when the retainer teeth displace relative to the retainer serrations.


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