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:
Jun. 20, 1989
Filed:
Jan. 12, 1987
Applicant:
Inventor:
Robert F Purssell, Plymouth, GB;
Assignee:
Ranco Incorporated of Delaware, Dublin, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
337320 ; 200 / ; 337130 ;
Abstract
A trip-free mechanism for resetting an on-off unit, such as a thermostat (1), breakable by the tripping of an actuator element (3) from a first condition to a second condition comprises a resetting button (9) engageable to apply a resetting force to the actuator element (3) to reset the latter in its first condition, and a restraining lever (10) acted upon by the resetting button (9) when it applies the resetting force to the actuator element (3) to maintain the unit in its broken condition until the button (9) is disengaged upon resetting of the actuator element.