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:
Nov. 15, 1994
Filed:
Jan. 19, 1993
Applicant:
Inventors:
Alexander A Bosna, Malvern, PA (US);
Louis M Riccio, Malvern, PA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ; C10M / ;
U.S. Cl.
CPC ...
252 122 ; 252 11 ; 252 124 ; 252 28 ; 252 58 ; 4151701 ; 4151734 ; 4151744 ; 415229 ; 415230 ; 264162 ; 298883 ;
Abstract
A turbine engine having an interior housing and one or more annular abradable seals for the turbine blades. The abradable seal comprises a resin having fractured hollow inorganic non-metallic microspheres forming nooks, crannies and undercuts in the resin and a solid lubricant in the resin and in the nooks and crannies and undercuts formed by the fractured hollow non-metallic inorganic microspheres.