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:
Feb. 06, 1979
Filed:
Oct. 07, 1976
Applicant:
Inventors:
Hugh P McAdams, Jr, Port Deposit, MD (US);
Ronald J Balog, Drexel Hill, PA (US);
Assignee:
Litton Systems, Inc., Beverly Hills, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08C / ;
U.S. Cl.
CPC ...
340 / ; 318654 ; 340 / ; 340198 ;
Abstract
A roll and pitch servomechanism for use in an attitude indicator is shown having an expanded scale in which a nonlinear electrical circuit is combined with a nonlinear mechanical indicator to produce an accurate indication of pitch attitude over an expanded range. The circuit includes an operational amplifier circuit connected in one leg of a balancing circuit which is connected in a delta configuration across the windings of a control transformer whose windings are connected in a Y-configuration.