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:
Aug. 06, 1996
Filed:
Mar. 15, 1994
Yunde Zhu, Ningbo, CN;
Guohui Bai, Ningbo, CN;
Ningbo Dongfang Music Movements General Factory, Nigbo, CN;
Abstract
The comprehensive improvement of a music box employs a hood-styled structure (1) which is a connection between the spring case (6) and the speed regulating support (7). The perpendicular trailing brace of the hood-styled structure has eliminated the cantilever beam structure of the prior speed regulating support. A centrifugal periphery damping friction disk (21) is set below the top of said hood-styled structure (1). Three fixed connection holes on the lower edge of the hood-styled structure (1) are used to have the structure fixed on the frame (5). Compared with the prior art, the boss which may cause interference with the sound is now located in a reasonable position. The extended shaft of the music drum (3) is connected with the music drum with the spiral direction of the thread on the extended shaft being opposite to the rotary direction of the music drum. Thus, the reliability is increased, the quality of the sound is improved and the cost is reduced.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile