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. 19, 1985
Filed:
Feb. 21, 1984
Applicant:
Inventor:
Albert K Yamamoto, Huntington Beach, CA (US);
Assignee:
Rexnord Inc., Brookfield, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
292405 ; 81443 ; 81450 ;
Abstract
A removal tool for a tangless helically coiled wire insert of the type used for tapped holes in parent material that is generally softer than a fastener being screwed into the tapped hole, whereby a mandrel having a threaded lead portion and a pivotable pawl inserted in a groove below the threaded portion so that the pawl engages a recess of the trailing end of the insert, in order that the insert may be extracted from the tapped hole. The pivotable pawl is automatically disengaged from the insert when the mandrel is pulled back, allowing the mandrel to free spin out of the tangless insert.