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:
Sep. 24, 1991
Filed:
Feb. 04, 1991
James H Foster, Houston, TX (US);
John Beson, Houston, TX (US);
Other;
Abstract
An orifice fitting has a slide valve seal strip of increased sealing area. The orifice fitting has a body with an upper chamber and a lower chamber, separated by a slot. A plate carrier will move an orifice plate from the upper chamber, through the lower chamber, and down into a flow passage below the lower chamber. A slide valve carrier will open and close the slot between the upper and lower chambers. A seal strip locates on the slide valve carrier for sealing against the seat of the slot. The seal strip has on opposite sides a pair of outward extending flanges. Each flange overlies and contacts a shoulder formed on the upper side of the slide valve carrier. The seal strip has a lower section that locates within the shoulders.