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:
Dec. 06, 1994
Filed:
Dec. 08, 1992
Jim Sacherman, Palo Alto, CA (US);
John Toor, Palo Alto, CA (US);
Hello Direct, San Jose, CA (US);
Abstract
A telephone headset uses extruded thermoplastic with a pair of embedded steel wires to make the headband and microphone boom. The extrusion is formed by feeding the two wires through the extruding die along with the hot plastic. The two wires serve to stiffen the extrusion and also as electrical conductors. The material is cut to length and joined to earphones, microphones and telephone cable to make the headset; the two wires conduct the sound signals to the earphone distal the telephone cable attachment. The extrusion material retains a twist, which allows for angular adjustment of the earphones. A hinge and spring cant the headphone inward at the bottom for greater comfort, and to adjust the angle to the user's head. In a second embodiment, one of the wires is removed after extrusion to leave a tunnel through the extruded material. Small electrical leads can be passed through the tunnel, and the remaining wire remains as a stiffener. The fine leads allow rotation of the boom about the earphone or headband without the need for a complicated electrical connection.