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:
May. 31, 1977
Filed:
Sep. 10, 1975
Nippon Gakki Seizo Kabushiki Kaisha, Shizuoka, JA;
Abstract
A headphone comprising: two ear cups; a head band; and coupling means for rotatably coupling the ear cups to the head band, the ear cups having ear pads on those sides facing each other, respectively, the head band being positioned on that side of each of the ear cups away from the side where the ear pad is provided, said coupling means rotatably coupling the head band to that side of each of the ear cups located away from the side where the ear pad is provided, whereby the coupling means enables each of the ear cups to make vertical and horizontal rotations relative to the ear of the user. This headphone insures free rotation of the ear cups in universal directions, and the rotation angle can be controlled as required. Moreover, the headphone as a whole can be provided in a compact size.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile