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. 07, 1995
Filed:
Dec. 06, 1993
Applicant:
Inventor:
William S Dalton, Chesterfield, MA (US);
Assignee:
Demag Delaval Turbomachinery Corp. TurboCare Division, Chicopee, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277 53 ; 277 56 ;
Abstract
In a steam turbine having retractable, spring-loaded, segmented, arcuate packaging rings and holders suspended in the turbine casing and circumscribing the turbine rotor, the packing rings and holders being interengaged by a hook fit and the packing rings being movable by steam pressure between opened and closed position relative to the holders and the rotor, the improvement which comprises providing each of the packing rings and holders with identical mating, curved profiles for providing full contact between the packing rings and holders in the opened position of the packing rings.