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:
Mar. 01, 1988
Filed:
Feb. 07, 1986
Applicant:
Inventor:
Ronald G Magers, Essex, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63H / ; A63H / ; A63H / ;
U.S. Cl.
CPC ...
446228 ; 446232 ; 446420 ; 446485 ;
Abstract
A toy helicopter is provided having a rotor that gradually accelerates to simulate the start-up of a full-scale helicopter, wherein the gradual acceleration is induced by frictional interaction between the surface of a drive shaft and the surface of a bore formed in the rotor hub. Actuation is accomplished by lifting an actuating shaft which extends from the rotor hub and drive shaft to activate a motor; returning the actuating shaft to its resting position deactivates the toy. The toy also provides a flashing light and audio mechanism to further simulate the operation of a full-scale helicopter.