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. 10, 1998
Filed:
Oct. 18, 1996
Wayne K Hutchison, Ontario, CA;
William N Eybergen, Dutton, CA;
Eaton Corporation, Cleveland, OH (US);
Abstract
A bi-directional filter/drier having a flat header welded to a casing with a desiccant canister disposed in the casing. The header has a dedicated low side pressure inlet port formed in the flat which communicates through a pair of oppositely disposed check valves in a cross passage with two separate bi-directional inlet/outlet ports into which low side pressure flow is permitted to by-pass the desiccant to the bi-directional ports. Individual passages, each with a stiffer check valve are provided between the bi-directional ports for permitting high side pressure to flow in either port into the desiccant. A stand pip through the desiccant is connected to an interior port in the header and communicates with a dedicated outlet port in header exterior.