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:
Dec. 23, 2025
Filed:
May. 03, 2024
Rtx Corporation, Farmington, CT (US);
Duane C. Mccormick, Colchester, CT (US);
RTX CORPORATION, Farmington, CT (US);
Abstract
An apparatus is provided for rotational equipment which includes a seal device. The seal device includes a plurality of seal shoes, a seal base and a plurality of spring elements. The seal shoes are arranged circumferentially around an axis in an annular array. A first of the seal shoes includes a seal surface and a diffuser surface. The seal surface extends axially along the axis to an axial interface location where the seal surface axially meets the diffuser surface. A minimum radius of the first seal shoe measured from the axis to the seal surface is defined at least at the axial interface location. A diffuser radius measured from the axis to the diffuser surface increases as the diffuser surface extends axially along the axis from the interface location to an axial distal side of the first seal shoe. The spring elements connect the seal shoes and the seal base.