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:
Nov. 08, 1988
Filed:
Oct. 13, 1987
Applicant:
Inventor:
Robert J Jupe, Yeovil, GB;
Assignee:
Westland Group plc, Yeovil, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C / ; B64C / ;
U.S. Cl.
CPC ...
244-6 ; 244 1719 ; 244 60 ; 7466 / ;
Abstract
A helicopter has two engines adapted to drive a main sustaining rotor and a plurality of auxiliary propulsion means through a transmission system that is selectively operable to vary the relative speeds of rotation of the sustaining rotor and the auxiliary propulsion means depending upon operating conditions.
Jupe, Robert. (1988). Helicopter rotor speed changing transmission (U.S. Patent No. 4783023). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4783023
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile