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. 28, 2019
Filed:
Feb. 05, 2018
Comitt Well Solutions Us Holding Inc., Katy, TX (US);
Peter Kris Cleven, Grand-Barachois, CA;
COMITT WELL SOLUTIONS US HOLDING INC., Katy, TX (US);
Abstract
A resettable pressure activated device (), comprises an inner wall (), a return spring (), a resilient element () and an axially movable piston () arranged around the inner wall (). The piston () comprises a radially extending piston area () in fluid communication with a central bore () within the inner wall () such that the piston () moves in an activation direction when a bore pressure within the central bore () exceeds the pressure around the device by a predetermined release pressure. The return spring () is configured to provide a return force that is directed opposite the activation direction and has a magnitude sufficient to return the piston () to an idle position when the bore pressure drops below a predetermined reset level. The resilient element () provides a retaining force, e.g. a friction force, equal to the difference between the release force and the return force. In a preferred embodiment, the retaining force is adjustable by adjustment means ().