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:
Jun. 13, 1978
Filed:
Jan. 25, 1977
Tasuku Ono, Tokyo, JA;
Stiron Chemical Industry Co. Ltd., Tokyo, JA;
Abstract
A sound making movable toy which is provided with a sound making device and driving wheels driven by a driving power source, the sound making device comprising: a blowing chamber having a fan and a sounding aperture; a main resonance chamber communicating with the sounding aperture; a resonance control chamber communicating with the main resonance chamber; a piston reciprocating within the resonance control chamber; and a crank mechanism to move the piston; thereby the sounds of various pitches being produced by changing the resonant volume of a resonance space defined by the main resonance chamber and the resonance control chamber with the reciprocating motion of the piston.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile