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:
Jan. 15, 1985
Filed:
Jun. 27, 1984
Applicant:
Inventor:
Arthur Kaye, Preston, GB;
Assignee:
British Aerospace Public Limited Company, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B / ;
U.S. Cl.
CPC ...
318628 ; 318687 ; 318696 ; 318135 ;
Abstract
Control apparatus, for example a thrust demand unit or 'throttle box' for an aircraft, comprises a manually movable control grip coupled to drive motor means comprising twin magnetically interactive components and operable for automatic movement of the control grip, e.g. under autopilot control, while allowing override by the operator e.g. the pilot of an aircraft. The drive motor may be a linear motor, particularly a motor comprising a rod and rider each having pole teeth defining relative positions of minimum magnetic reluctance between the rod and rider, and winding means for moving the rider stepwise between said positions.