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. 29, 2021
Filed:
Jul. 13, 2018
Tony Leeseberg, Elgin, IL (US);
Stephen Sapp, Itasca, IL (US);
Curtis Phillips, Bloomingdale, IL (US);
James E. Pearson, Downers Grove, IL (US);
Tony Leeseberg, Elgin, IL (US);
Stephen Sapp, Itasca, IL (US);
Curtis Phillips, Bloomingdale, IL (US);
James E. Pearson, Downers Grove, IL (US);
Robertshaw Controls Company, Itasca, IL (US);
Abstract
Embodiments of a normally open gas valve are disclosed herein. The normally open gas valve includes a valve plug that gradually or partially disengages from the valve seat such that the actuation power required to open the valve is substantially reduced. The force required to open or close the valve is also reduced through the use of an off-center lever arm that multiplies the force applied by the armature of the actuation means. In this way, a less expensive actuation means, e.g., a less expensive solenoid, is able to be used to actuate the normally open gas valve.