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. 09, 1983
Filed:
Dec. 01, 1980
Applicant:
Inventors:
Richard E Malcolm, Oakville, CA;
Harry M Assenheim, Georgetown, CA;
Paul L Emmett, Willowdale, CA;
Richard Chan, Brampton, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C / ;
U.S. Cl.
CPC ...
356248 ; 350-66 ; 350486 ;
Abstract
The invention provides an artificial horizon device having a light source of limited power which can be positioned remotely from the aircraft cockpit. A scanning mechanism is mounted in the cockpit to receive light from the light source and to project a light bar representing the true horizon by scanning a projected light beam along the perceived bar at a frequency sufficiently high that the bar is perceived as a continuous projection.