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. 11, 1990
Filed:
Jan. 29, 1988
Applicant:
Inventors:
Assignees:
Allied-Signal Inc., Morristown, NJ (US);
Bendix Limited, Bristol, GB;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55163 ; 55 33 ; 55213 ;
Abstract
An air dryer of the type fitted with a purge valve 92 is fitted with an input cut-off valve (81) which closes when the purge valve is opened in order that the compressor output line 2 is not vented thereby maintaining compressor and/or turbo charger pressure during off-load conditions.