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. 07, 1978
Filed:
Jan. 21, 1977
Gabriel Marason, Jr, Hawthorne, CA (US);
Harold B Collins, Hawthorne, CA (US);
Mattel, Inc., Hawthorne, CA (US);
Abstract
An inertial phonograph device having a flywheel carrying a record member having a plurality of interleaved sound tracks pre-recorded to match the rundown speed of the flywheel. A constant predetermined rotational force is imparted to the flywheel by means of a sector gear selectively engaging a pinion on the shaft of the flywheel, the sector gear being pivoted under the force of a spring. The sector gear is pivoted against the force of the spring out of engagement with the pinion by means of a cocking lever, and after engagement of the sector gear with the pinion rotation is restricted by a brake shoe coacting with the flywheel until the cocking lever is fully returned.