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:
Aug. 21, 1979
Filed:
Jun. 13, 1977
Applicant:
Inventor:
Howard P Aldrich, Rancho Palos Verdes, CA (US);
Assignee:
The Garrett Corporation, Los Angeles, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
B64D / ;
U.S. Cl.
CPC ...
98-15 ; 244 59 ; 137 81 ;
Abstract
A cabin pressure control system has two independent controllers, one of which is used as primary controller while the other serves as standby. On alternate flights the identity of primary and standby controller are switched so that both controllers will be regularly utilized.