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:
Jun. 09, 2015
Filed:
Aug. 03, 2011
Uwe Stein, Lothian, GB;
Jens Eilers, Lothian, GB;
Fergus Mcintyre, Lothian, GB;
Gordon Voller, Lothian, GB;
Uwe Stein, Lothian, GB;
Jens Eilers, Lothian, GB;
Fergus McIntyre, Lothian, GB;
Gordon Voller, Lothian, GB;
ARTEMIS INTELLIGENT POWER LIMITED, Loanhead, GB;
Abstract
In a face sealing annular valve, an annular valve member is retained around or within a guide. The annular valve member is configured so that, when the annular valve member and the annular valve seat are coaxial, the spacing between the guide means and the guide-engaging surface region increases with distance along the central axis from a minimum of spacing between the annular valve member and the guide means. An end stop limits the tilt of the annular valve member. Advantageously, the annular valve member has restricted radial movement, enabling a good seal to be formed, while being unable to simultaneously contact diametrically opposite sides of the guide and jam.