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. 11, 1980
Filed:
Jul. 10, 1978
George R Curtiss, Chardon, OH (US);
Cooper Industries, Inc., Houston, TX (US);
Abstract
A portable grinder incorporates a safety clutch mechanism between the drive motor output and the grinding wheel shaft to prevent the grinding wheel from dislodging due to a malfunction of the motor. In the preferred embodiment, the clutch mechanism comprises a one-way or a free-wheeling clutch and a slip clutch in parallel between the motor rotor and the drive shaft. The one-way clutch transfers power from the motor rotor to the drive shaft and grinding wheel under normal operating conditions. In the event of a motor malfunction which suddenly locks the rotor, the clutch mechanism allows the drive shaft and grinding wheel to slow and stop in a controlled fashion thereby minimizing the possibility of the grinding wheel dislodging from the drive shaft.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile