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:
Feb. 03, 1981
Filed:
Sep. 27, 1978
Applicant:
Inventors:
James W Downing, Buena Park, CA (US);
Teunes Verhoeven, Long Beach, CA (US);
Assignee:
McDonnell Douglas Corporation, Long Beach, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
F16H / ; F16D / ; G05G / ;
U.S. Cl.
CPC ...
747105 ; 64 2 / ; 74469 ; 74713 ; 244213 ;
Abstract
A mechanical power transmission apparatus, of the differential gear type, for actuating an airplane control surface requiring two independent actuator inputs to a single control surface. Asymmetric loading to the control surface is accommodated by a mechanical fuse link. The fuse link is provided by employing a shear pin to attach the pinion gear to the pinion shaft, designed to fail at a predetermined differential torque between the two driven bevel gears. Positive disengagement of the gears is provided following fuse link release.