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:
Jan. 01, 2013
Filed:
Apr. 21, 2006
James D. Vick, Jr., Dallas, TX (US);
Jimmie R. Williamson, Carrollton, TX (US);
Leo G. Collins, Farmers Branch, TX (US);
Glenn R. Davis, Euless, TX (US);
James D. Vick, Jr., Dallas, TX (US);
Jimmie R. Williamson, Carrollton, TX (US);
Leo G. Collins, Farmers Branch, TX (US);
Glenn R. Davis, Euless, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A safety valve having a mono spring closure mechanism. The closure mechanism may be free of any spiral wound spring. The closure mechanism may include a spring having a beam which bends along its length to apply a biasing force to the closure member at its fully closed position and at its fully open position. The closure mechanism may include only a single spring, with the spring having at least two legs, the legs being joined to each other at an end of each leg, and each leg including at least one beam.