Patent · US Expired

Horn speaker

US4040503A · kind A · utility

13Cited by
3References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 10, 1976
Grant dateAug 9, 1977
Priority date—
Expiry dateMay 10, 1996

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04R1/345
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

A horn speaker comprising a diaphragm positioned close to a throat and side walls forming sound passages for radiating the vibrations of the diaphragm effectively as sound waves from the mouth of the speaker.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.