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:
Jul. 06, 1976
Filed:
May. 15, 1975
Applicant:
Inventor:
Robert A Bilbrey, Orinda, CA (US);
Assignee:
California Controls Company, Berkeley, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
116 65 ;
Abstract
A pneumatic control system is described including a plurality of annunciators in which movable shuttle elements indicate normal and abnormal conditions. In the event an abnormal condition is sensed causing the shuttle element in any of the annunciators to move to the abnormal position, a bias pressure is applied to brake means in the annunciators to lock the position of the shuttle elements which have not moved. Thus, those of the annunciators which are not associated with an abnormal condition continue to indicate the normal condition.