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:
Oct. 18, 1977
Filed:
Jun. 22, 1976
Applicant:
Inventor:
Jacob Howard Beck, Waban, MA (US);
Assignee:
BTU Engineering Corporation, North Billerica, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F27D / ;
U.S. Cl.
CPC ...
432242 ; 34242 ; 126198 ; 49477 ; 1101 / ; 266271 ;
Abstract
A door seal especially adapted to for use in a high temperature furnace wherein a sealing gas is controllably introduced between confronting surfaces of the door and the furnace to establish a gas barrier against leakage of cover gas from within the furnace chamber and leakage of air into the furnace chamber.