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. 17, 2020
Filed:
Apr. 25, 2017
Oxford Flow Limited, Oxford, GB;
Thomas Povey, Oxford, GB;
Matthew Collins, Oxford, GB;
OXFORD FLOW LIMITED, Oxford, GB;
Abstract
A device for controlling the flow of a fluid through a conduit from an upstream side of the device to a downstream side of the device. The device includes a valve aperture (), a cylindrical mounting member () on the downstream side of the valve aperture, a valve member () on the outside of the cylindrical mounting member that moves reciprocally to open and close the valve aperture, a control volume () defined between the cylindrical mounting member and the valve member, an arrangement () for introducing a control pressure into the control volume, and a seal () between the outer surface of the cylindrical mounting member and the inner surface of the valve member that substantially seals the control volume. The valve member is acted on by the pressure of the upstream side (PI) and the control pressure (P) so as to be moved by the difference between these pressures.