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:
May. 12, 2020
Filed:
May. 11, 2018
Vincent Rogers, San Rafael, CA (US);
Kenneth Tarlow, San Rafael, CA (US);
Vincent Rogers, San Rafael, CA (US);
Kenneth Tarlow, San Rafael, CA (US);
Other;
Abstract
An earthquake gas valve that uses a battery powered actuation mechanism to automatically close a gas valve when the movement caused by an earthquake is perceived. A gear motor is activated by a plurality of shake switches which in turn cause a motor driven radial rack to rotate. The rack terminates in a closure plug which obstructs the gas outlet opening and prevents gas from entering the house or office when an earthquake occurs. A timing circuit delays the activation of the closure plug to make sure that the motion has been caused by an earthquake and not by an accidental brief jarring action.