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:
Oct. 20, 1981
Filed:
Oct. 09, 1979
Eugene F Hildebrandt, St. Louis County, MO (US);
Thomas V Ottersbach, St. Louis County, MO (US);
Emerson Electric Co., St. Louis, MO (US);
Abstract
A motor starting switch installable, for example, on a fractional horsepower electric motor and actuable between a run and a start position by means of a centrifugal actuator axially shiftable on the rotor shaft of the motor in response to start up or shut down of the motor. The starting switch includes a rotary actuator member having a cam follower engageable by a conical cam surface on the centrifugal actuator as the latter shifts axially from its run to its start position thereby to effect rotary movement of the actuator member and to effect actuation of the switch from its run to its start position as the centrifugal actuator moves through only a portion of its stroke. The rotary actuator member is further engageable with a cylindrical cam surface of the centrifugal actuator after the switch has been converted to its start position thereby to prevent overstressing of a switch arm within the starting switch upon continued movement of the centrifugal actuator to its start position.