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:
Apr. 19, 1988
Filed:
Mar. 26, 1987
Brian McMahon, Canton, MI (US);
Other;
Abstract
A timing device to automatically timing the turbine engine cool-down period for a turbine engine helicopter. The electronic timer is activated when the micro-switch on the engine throttle cable is closed, as the pilot twists the throttle control to the ground-idle position. The timer illuminates a yellow caution light on the helicopter instrument panel to indicate to the pilot that the cooling cycle is in progress. The timer is preset to the specified time limits required by the turbine engine manufacturer for the helicopter. At the end of the cool-down period, the timer deactivates the caution light on the helicopter instrument panel and indicates to the pilot that the cooling cycle is complete and the turbine engine can be shut down.