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:
Sep. 10, 1991
Filed:
Jun. 22, 1990
Applicant:
Inventor:
Hideo Tamamori, Kobe, JP;
Assignee:
Nippon Air Brake Co., Ltd., Kobe, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03B / ;
U.S. Cl.
CPC ...
4151212 ; 4151213 ; 4151692 ; 55316 ; 210D / ;
Abstract
A filter arrangement for a moisture-removal device used in compressed air systems in which an inner filter adapted to remove water from the air is encircled by an outer filter that is adapted to remove oil from the air. A space between the inner and outer filters is provided to accommodate accumulation of the filtered-out oil with a valving arrangement provided in the area of oil accumulation that is operative in response to a pressure differential when the regeneration phase of operation is initiated to concurrently discharge the accumulated oil.