Head phone

• US 6,741,719 B1
• Filed: 03/06/2001
• Issued: 05/25/2004
• Est. Priority Date: 07/24/1998
• Status: Expired due to Term

• Current Assignee: Medi-Stim As
• Original Assignee: Meditron A/S
• Inventors: Orten, Birger
• Primary Examiner(s): Le, Huyen
• Assistant Examiner(s): Dabney, P.
• Application Number:
  US09/744,353
• Time in Patent Office: 1,176 Days
• Field of Search: 381/370-371, 381/378, 381/380, 381/381-382, 381/327-328, 381/330, 381/374, 381/375, 381/377, 381/379, 381/338-339, 181/129, 181/130, 181/135, 379/430
• US Class Current: 381/380
• CPC Class Codes: A61B 7/04 Electric stethoscopes microphones, acoustic transducers therefor H04R
• CPC Class Codes: H04R 1/1016 Earpieces of the intra-aural type

Abstract

A head phone comprises at least one loudspeaker of the type that rests on the outside of a user'"'"'s ears, mounted on and held in place by a support. The loud speakers are equipped with a sound-concentrating duct that may be pivotable relative to the auditory canal of a user'"'"'s ear so as to facilitate insertion of the duct a short distance into the auditory canal.

Claims

1. A head phone comprising:

at least one loudspeaker unit of the type resting on the outside of the user'"'"'s ear(s), and

a support means for the loudspeaker unit(s), said loudspeaker unit(s) being pivotably mounted on the support means, each loudspeaker unit having a sound producing side facing the user'"'"'s eat and being equipped on its sound producing side with a sound concentrating duct arranged to be placed a short distance into the auditory canal when in use, said sound concentrating duct being equipped with a ball joint near the sound producing side of the loudspeaker unit for adaptation of the angle of the sound concentrating duct toward the user'"'"'s ear.

2. The head phone of claim 1, further characterized in that said sound concentrating duct is made at least partially of a flexible material for adaptation to the user'"'"'s ear.

3. The head phone of claim 1, characterized in that said sound concentrating duct is provided with an elastic sealing material for sealing against the edge of the auditory canal.

4. The head phone of claim 1, further characterized in that said sound concentrating duct is funnel-shaped, and is attached around the sound producing area of said loudspeaker unit and tapered in toward the user'"'"'s ear.

5. The head phone of claim 1 further characterized by a surrounding ear bell mounted on the outside of each loudspeaker unit at a side opposite from the sound producing side to shut out irrelevant external sound.

6. The head phone of claim 5, further characterized in that each ear bell has built-in equipment for producing sound adapted to nullify irrelevant external sound that may be otherwise directed toward the user'"'"'s auditory canal.