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. 08, 1998
Filed:
Sep. 30, 1997
Applicant:
Inventors:
R Craig Hannah, Calgary, CA;
Paul Wierzba, Calgary, CA;
John P Doyle, Calgary, CA;
Randy W Perusse, Calgary, CA;
Assignee:
ETI Technologies Inc., St. Peter Port, GB;
Primary Examiner:
Int. Cl.
CPC ...
F16F / ;
U.S. Cl.
CPC ...
7457 / ; 74572 ; 74574 ;
Abstract
A balancing apparatus has a first circular race rotatable about a first axis. A first plurality of weights are movable within the first race. A locking member maintains the weights in a first position within the race until when a first predetermined angular velocity is reached and releases the weights when a second predetermined angular velocity is reached.