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:
Jan. 25, 2022
Filed:
Aug. 31, 2020
Raytheon Technologies Corporation, Farmington, CT (US);
Michael G. McCaffrey, Windsor, CT (US);
Joseph D. Evetts, Glastonbury, CT (US);
Kristine M. Carnavos, Glastonbury, CT (US);
Conway Chuong, Manchester, CT (US);
Christopher W. Robak, Manchester, CT (US);
William Proscia, Marlborough, CT (US);
Purity Dele-Oni, East Hartford, CT (US);
Caroline Karanian, West Hartford, CT (US);
John E. Paul, Portland, CT (US);
Jagannath Pranatharthikaran, Vernon, CT (US);
Raytheon Technologies Corporation, Farmington, CT (US);
Abstract
A rotational equipment assembly includes a plurality of seal shoes, a seal base, a plurality of spring elements and a secondary seal assembly. The seal shoes are arranged circumferentially around an axial centerline and include a first seal shoe. The first seal shoe includes a first seal shoe base and a first seal shoe rib that projects axially out from the first seal shoe base to an axial distal end of the first seal shoe rib. The seal base extends circumferentially around the axial centerline. The spring elements include a first spring element that connects and extends between the first seal shoe and the seal base. The secondary seal assembly is configured to seal a gap between the seal base and the seal shoes. The secondary seal assembly includes a free floating seal plate that axially contacts and is configured to slide radially along the first seal shoe rib.