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:
Jul. 25, 1989
Filed:
Dec. 23, 1988
Applicant:
Inventors:
John R Naumec, Willimantic, CT (US);
Wayne K Armstrong, Meriden, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25G / ;
U.S. Cl.
CPC ...
403322 ; 403325 ; 403330 ;
Abstract
A lightweight tool coupling device for coupling a tool shank to a drive spindle is disclosed. A tool coupling housing is rigidly secured to the drive spindle and includes spring biased plungers which cooperate with axial grooves on the tool shank to prevent rotational movement of the shank relative to the drive spindle.