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. 02, 1993
Filed:
Mar. 27, 1992
Robert J Osborn, Orange, CT (US);
The Allen Group Inc., New Haven, CT (US);
Abstract
A heat exchanger includes a metal tank having an open side and a flange around the open side, and a metal header plate connected to a plurality of heat exchanging tubes, the header plate having a channel around its periphery for mating with the tank flange. An elastomeric gasket completely fills the space between the flange and the channel for restricting contact of coolant with tank and header plate surfaces therebetween and reducing crevice corrosion. The cast metal tank has predominately thin walls and at least one cast indentation point for starting a drilled hole. The indentation point is located in a defined, limited region of the tank walls having a thickness greater than surrounding wall regions. The indentation points or other openings in the tank walls may be relocated by cutting and welding them in different locations to accommodate different configurations in low volume production.