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:
Apr. 20, 1993
Filed:
Oct. 18, 1991
Henri V Azibert, Windham, NH (US);
Margaret B Willbrant, Derry, NH (US);
Ann T Attenasio, Revere, MA (US);
AWChesterton Company, Stoneham, MA (US);
Abstract
An axially floating annular flow ring is provided for use in a gland mounted to rotary equipment concentrically to the equipment shaft. The ring has an outer circumferential surface for mounting to the gland interior adjacent to gland port mouths opening out of the gland interior surface and axially between the ends of primary seal members associated with the gland. The ring non-rotatably mates with the primary seal members and the gland, and can shift axially. The ring supplies a fluid flow channel in conjunction with fluid-flow vanes associated with the shaft and which ring can travel axially with the vanes to accommodate shaft endplay.