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:
Jul. 14, 1987
Filed:
Apr. 14, 1986
Melvin R Kennedy, New York, NY (US);
Dietmar Nagel, Chester, NJ (US);
Abraham A Arad, Westport, CT (US);
Other;
Abstract
A free-wheeling toy vehicle which when propelled makes a repetitive sound simulating the noise of an internal combustion engine. The vehicle includes a chassis having bearings supporting front and rear wheel axles. Lying on top of the chassis between the axles is a drum having an elastic drum head. Cantilevered from one end of the chassis is a clapper formed of a flat metal spring terminating in a striker, the spring being biased so that the striker normally rests on the drum head. A finger projects downwardly from the clapper, the tip of the finger being successively engaged by the equispaced teeth of a hub mounted on one of the wheel axles and turning therewith. Each time the finger tip is engaged by a moving tooth, the finger is pushed forward to raise the striker above the drum head; and when the finger than falls between adjacent teeth, the striker is released to hit the drum head to generate a thumping sound. The repetition rate of the clapper action depends on the running speed of the vehicle and therefore acts to create a realistic motor noise.