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:
Feb. 08, 1983
Filed:
Oct. 13, 1981
Applicant:
Inventor:
Roderick J Baker, Belmont, NY (US);
Assignee:
The Air Preheater Company, Inc., Wellsville, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28D / ;
U.S. Cl.
CPC ...
165-9 ; 165-8 ;
Abstract
A trunnion sealing means for a rotary regenerative heat exchange apparatus. The sealing means is separated into two independent portions. The first portion is an air seal 34 that lies concentrically around a continuously moving trunnion 32. A supply of pressurized air is supplied thereto to preclude the leakage of fluid from the rotor of the rotary regenerative heat exchange apparatus. A second portion of said seal comprises a spool 56 radially spaced from the trunnion and having walls that are permitted to move relatively only an insignificant amount not sufficient to abrade or otherwise harm a packing material 36 therein.