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. 22, 1980
Filed:
Dec. 22, 1976
Charles W Modersohn, Beloit, WI (US);
Warner Electric Brake & Clutch Company, South Beloit, IL (US);
Abstract
The blades of a rotary lawn mower are driven by a constantly rotating shaft through a clutch-brake assembly which, when the operator leaves the operating station of the mower such as the mower handles, automatically disengages the blades from the shaft and brakes the blades while permitting the shaft to continue to rotate. The clutch-brake assembly is self-energizing and normally is engaged but is held in the disengaged condition by an actuator which also is self-energized and which initially is energized by a spring. The latter is effective to disengage the clutch and actuate the brake thereby to prevent the blades from rotating until the operator moves a manual member at the operating station to overcome the spring which initially energizes the actuator. This de-energizes the actuator so that the brake is disengaged and the clutch is engaged whereby the shaft rotates the blades.