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:
Nov. 06, 2018
Filed:
Jun. 17, 2015
Fmc Technologies, Inc., Houston, TX (US);
Lewis Holmes, Houston, TX (US);
Iain G. Duncan, Houston, TX (US);
Kevin Masterson, Houston, TX (US);
FMC Technologies, Inc., Houston, TX (US);
Abstract
An apparatus, fixed or recoverable to control a remote device includes a valve assembly having a cylinder, a piston dividing the cylinder into a first hydraulic chamber and a second hydraulic chamber, a spring to bias the piston toward the first hydraulic chamber, and a linkage to connect the piston to the remote device, a quick-vent valve assembly comprising an inlet connected to a hydraulic source, an outlet connected to the first hydraulic chamber, and a vent port, wherein the quick-vent valve assembly is configured to discharge fluid from the outlet to the vent when a pressure of the hydraulic source connected to the inlet drops below a threshold value, and a vent line connecting the vent port of the quick-vent valve assembly to a hydraulic accumulator.