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.

Date of Patent:
Nov. 25, 1986

Filed:

Apr. 09, 1984
Applicant:
Inventor:

Tommyca Freadman, Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R / ;
U.S. Cl.
CPC ...
381111 ; 381 87 ;
Abstract

An integrated amplifier and speaker system is disclosed which is designed to use air waves produced by the excursion of the speaker diaphragm together with a heat sink for maintaining the temperature of the power transistors within a safe operating range at or below a desired maximum temperature level. By integrally designing the speaker and the amplifier, the increase in cooling capability provided by the speaker diaphragm excursion allows for the use of a heat sink having an area or heat dissipating capability lower than that required had the system not been integrally designed.


Find Patent Forward Citations

Freadman, Tommyca. (1986). Integrated amplifier and speaker system with improved cooling efficiency (U.S. Patent No. 4625328). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4625328

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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