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:
Mar. 16, 1982
Filed:
Dec. 17, 1980
Charles J Everett, Clinton, CT (US);
Robertshaw Controls Company, Richmond, VA (US);
Abstract
A control device having a housing provided with an actuator chamber separated from a pressure differential chamber by a wall having an opening therethrough receiving an axially movable actuator pin that transmits axial movement of a movable part in the pressure differential chamber to the actuator chamber, the actuator pin being separate from and engageable with the movable part. An optical switch unit is disposed in the actuator chamber and the actuator pin has an interrupter vane for actuating the optical switch unit when the movable part axially moves the actuator pin to a certain axial position relative to the housing. The actuator pin has an orientation arrangement that cooperates with an orientation arrangement of the wall opening to maintain the interrupter vane of the actuator pin in proper rotational alignment with the optical switch unit.