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:
Dec. 20, 1983
Filed:
Nov. 16, 1981
Ronald A Durno, Trumbull, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
To provide the pilot with the 'feel' that he is inadvertently moving his cyclic control stick from its midposition when the helicopter is on the ground, and thereby possibly changing the rotor plane from a safe to an unsafe position for ground personnel, a restraint member is provided which includes an over-center spring, and which may be pivoted from its stowed position into an operable position where it bears against the cyclic stick so midpositioned. The over-center spring thereof offers resistance to cyclic stick motion if the pilot inadvertently begins to move the stick forward or laterally of its midposition, but the spring biasing force can readily be overcome by the pilot by manually pushing the cyclic stick forward and thereby cause the restraint member to move to its stowed position.