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.

Date of Patent:
Jun. 05, 1984

Filed:

Aug. 14, 1981
Applicant:
Inventors:

Joseph M Rait, Buffalo, NY (US);

David Dhanens, Cheektowaga, NY (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B / ; G08B / ; G01L / ;
U.S. Cl.
CPC ...
340970 ; 200 / ; 200 / ; 73387 ; 340626 ;
Abstract

An apparatus to continuously monitor a preset altitude for a pilot of an aircraft. It senses a change in altitude and an audible as well as a visible alarm tells the pilot that he has deviated from his preset altitude by a given height. Increase in altitude is signaled by a high pitch tone and by a yellow light while a decrease in altitude is signaled by a low pitch tone and a red light. The invention can also be used to warn a small boat operator of a pressure drop.


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