U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5719655

System for magnetically attaching templeless eyewear to a person

A system of eyewear that eliminates the need for hinges on the frames of the eyewear.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 181/132 - With diaphragm


Subclass of Class 181 - Acoustics
Definition: Subject matter including a flexible element which form part
No. of patents: 17
Last issue date: 01/01/2008


NumberTitleIssue Date
7314047Hearing protection device
An earplug is provided including an elongate stem component having a first end and an opposite second end, a first flange disposed on the stem proximate the first end, a second flange disposed on the stem adjacent the first flange, a third flange disposed on the ste...
01/01/2008
7074296In-ear hearing aid and method for its manufacture
A method of manufacturing a hearing device including providing a hearing aid housing having an opening, providing an electric/acoustic transducer, providing a support plate forming a blind hole having a membrane as a base, inserting the transducer into the blind hol...
07/11/2006
6879696In-ear hearing aid and method for its manufacture
An in-the-ear hearing aid having an electric/acoustic transducer system and a freely vibrating membrane in acoustic communication with the hearing aid transducer and the hearing aid surroundings. The membrane seals the hearing aid from its surroundings to aid in pro...
04/12/2005
6847720Quick-updating stethoscope receiver
A quick-updating stethoscope receiver comprises a receiver, a listening disk at a lower end of the receiver, the listening disk can be embedded into a lower end of the receiver; an upper cover at a top end of the receiver; and a transducer combining at a lateral wal...
01/25/2005
6768803Method and apparatus for selective acoustic signal filtering
The present invention relates to a method and apparatus for performing selective acoustic signal filtering. The apparatus comprises two acoustic ports, an electrical output port and an acoustic signal processing device, where all three ports have an impedance charac...
07/27/2004
6378648Diaphragm assembly for stethoscope chest piece
The diaphragm assembly includes a diaphragm adhesively attached to a rim. The rim has a C-shaped cross section with the C-shape facing inward and a membrane extending radially inward from one of the radial portions of the C-shaped portion. The diaphragm i...
04/30/2002
6307943Electro-acoustic transducer and housing
An electro-acoustic transducer for a sound reproducing system includes an electro-acoustic transducer in a cabinet and a sound guide tube for conducting the sound from the transducer unit out of the cabinet. The sound guide tube has a sound radiating end ...
10/23/2001
5467775Modular auscultation sensor and telemetry system
A modular auscultation sensor and telemetry system ("MASTS") for sensing body sounds of a patient in a noisy environment where both desired body sounds and undesirable noise may be detected. The MASTS includes a transducer head that comprises two sensors ...
11/21/1995
5222050Water-resistant transducer housing with hydrophobic vent
An immersion-resistant housing adapted to receive a vibratable diaphragm spanning the interior of the housing to divide the housing into first and second chambers includes a first port communicating between the first chamber and the exterior environment. ...
06/22/1993
5113967Audibility earplug
An earplug uses damping to render unimportant a Helmholtz resonance between the acoustic mass intrinsic to a sound channel thereof and the compliance of air in the earcanal, in combination with a readily manufacturable external structure coupled to the so...
05/19/1992
5031219Apparatus and method for conveying amplified sound to the ear
An earmold and a method of manufacturing an earmold for a hearing aid that conveys amplified sound from the hearing aid into the ear canal to a closed cavity adjacent the tympanic membrane. The earmold includes an acoustic conduction tube having an extern...
07/09/1991
5022486Sound reproducing apparatus
A sound reproducing apparatus is provided formed of an acoustic tube having first and second opposite ends, and having substantially a same inside diameter as that of an external acoustic meatus of the user who is wearing the sound reproducing apparatus. ...
06/11/1991
4995473Stethoscope with diaphragm head adapter
A stethoscope head adapter for a diaphragm microphone is provided. The adapter creates a smaller surface area for the diaphragm microphone without diminishing the acoustical reception by the diaphragm of normal or pathological conditions in a patient. The...
02/26/1991
4852683Earplug with improved audibility
An earplug uses damping to render unimportant a Helmholtz resonance between the acoustic mass intrinsic to a sound channel thereof and the compliance of air in the earcanal unimportant, in combination with an external structure coupled to the sound channe...
08/01/1989
4809811Ear pad construction for earphones
An ear pad for earphones comprises a foam-like material formed into a pad enclosing the user's ear in use in order to expand the essentially linear frequency response of a good earphone so that it brings also the lowest still audible frequencies into the ...
03/07/1989
4540063Sound wave attenuation device
A sound attenuation device is disclosed which is capable of simultaneously attenuating sound waves of both high and low frequencies bands while leaving other frequencies undisturbed. The device is comprised of an outer shell having inlet and outlet apertu...
09/10/1985
4420657Adjustable headset
A lightweight adjustable headset is disclosed for use with telephones. The headset includes a housing having a microphone boom mounted in a manner to permit rotational and translational movement. A support member is provided for affixing the headset to th...
12/13/1983
 
Sign InRegister
Username  
Password   
forgot password?