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:
May. 07, 2002
Filed:
Dec. 23, 1999
Applicant:
Inventors:
Michael J. Rutkowski, Brunswick, OH (US);
Larry F. Babb, Grafton, OH (US);
Assignee:
Emerson Electric Co., St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B 9/02 ;
U.S. Cl.
CPC ...
B08B 9/02 ;
Abstract
A belt driven drum-type drain cleaning machine in which the drive motor is spring biased to tension the drive belt is provided with a spring arrangement by which slippage between the drive belt and drive pulley is intentionally achieved in response to the imposition of a predetermined torque on the drain cleaning cable during use of the machine.