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:
Dec. 15, 1998
Filed:
May. 29, 1997
Applicant:
Inventors:
Timothy R Cooper, Owega, NY (US);
Thomas P Low, Belmont, CA (US);
Ronald E Pelrine, Silverthorne, CO (US);
Dale W Ploeger, Menlo Park, CA (US);
Assignee:
Ingersoll-Rand Company, Woodcliff Lake, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ; B23Q / ;
U.S. Cl.
CPC ...
173176 ; 173-5 ; 173 93 ; 173 935 ; 173 20 ; 173117 ; 173217 ; 173181 ; 173183 ;
Abstract
Disclosed is a low reaction oscillating mass-based torquing tool wherein an oscillating mass is excited into near resonant oscillation by reversing pulses resulting in increased energy stored in oscillation about a dual stiffness spring which develops a higher torque output with the stiffer spring action in the tightening direction and hence tightens the fastener.