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

Icon_funbox Bizarre Patents

Patent No. 5500234

Crispy Chip Sandwich and Process of Producing a Sandwich Product

A food product comprising a multilayer cookie or snack having outer layers formed from a crispy type edible food product such as a potato chip or corn chip, etc. with an intermediate marshmallow layer being in contact with the inner surface of each crispy chip and one or more filler substances.

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 381/373 - Openable to ambient


Subclass of Class 381 - Electrical audio signal processing systems and devices
Definition: Subject matter in which the space within the cup is ventable
No. of patents: 37
Last issue date: 03/20/2012


NumberTitleIssue Date
8139806Earphone for placement in an ear
An earphone which fits into an ear is disclosed. The earphone includes an electroacoustic transducer for converting an audio signal into sound and a housing for holding the electroacoustic transducer. The housing includes a sound output unit for introducing the soun...
03/20/2012
8090134Earphone device, sound tube forming a part of earphone device and sound generating apparatus
An insert earphone device includes an electro-acoustic device, an inserting body, a sound tube connected between the electro-acoustic device and the inserting body and an active valve unit provided on the sound tube, the sound tube is formed with a sound propagation...
01/03/2012
7436973Structure for earphones with multiple sound tracks
A structure for earphones with multiple sound tracks, includes an earphone casing, at least one first speaker, a second speaker and an adjusting member. The earphone casing has a plurality of outer-sound holes on the outside portion thereof. The speakers are dispose...
10/14/2008
7391878Earphone device having composite functions
An earphone device having composite functions at least has an earphone shell body, a loudspeaker, and an adjustment component. Several outer sound holes are disposed on the outer side of the earphone shell body. The loudspeaker is fixed in the earphone shell body. T...
06/24/2008
7388962Directional hearing enhancement systems
A hearing enhancement system that enhances a user's hearing based on a directional speaker is disclosed. In one embodiment, the system can include an interface unit that has a directional speaker and a microphone. The microphone captures input audio signals that are...
06/17/2008
7335222Cooling ear muffs
A pair of cooling ear muffs, for use by a user in cooling the head of the user. A pair of ear covers each have a shell and contain a reservoir for holding a chilled liquid. A sealing ring on each ear cover encircles the ear and a thermal membrane communicates heat f...
02/26/2008
7317802Active-noise-reduction headsets with front-cavity venting
Active-noise-reduction (ANR) headsets protect the hearing of their users from loud persistent noises, such as airplane engines and construction equipment. These headsets generally include ear speakers and special circuitry to cancel or suppress certain types of loud...
01/08/2008
7300406Medical examination apparatus
An apparatus to enable health care providers to perform a number of diagnostic procedures, including listening to the heart, obtaining electrocardiograms and sonograms. A pocket size instrument displays an EKG tracing on its screen simultaneously upon auscultation o...
11/27/2007
7242765Headset cellular telephones
Headset cellular phones which may be worn continually and use voice recognition/speech activation for dialing telephone numbers and controlling other aspects of operation. Cell phones according to the present invention can include a microphone and preferably include...
07/10/2007
7215766Headset with auxiliary input jack(s) for cell phone and/or other devices
Headsets are used in variety of applications to facilitate one- or two-way audio communications between users and/or devices. The present inventor recognized that conventional headsets lack means for successfully integrating more than one audio source, despite their...
05/08/2007
7088830Parametric ring emitter
A sound emitting device for providing at least one new sonic or subsonic frequency as a by-product of emitting a waveform of at least two ultrasonic frequencies whose difference in value corresponds to the desired new sonic or subsonic frequency. The device includes...
08/08/2006
6826287Earmuff with controlled leak
An acoustic earmuff device is provided comprising a rigid cup, including inner and outer surfaces, a sound channel means disposed through said cup shaped portion, and a plate means operatively associated with said sound channel means, such that when the plate means ...
11/30/2004
6704429Earphone without impulse noise and surroundings blockade
An earplug type earphone without impulse noise and surroundings blockade includes an earphone housing having a sound chamber inside thereof and a loudspeaker mounted therein, wherein a plurality of sound outlet meshes is provided on the front end of the e...
03/09/2004
6668064Earphone without impulse noise and surrounding blockade
The present invention is to provide an earphone without impulse noise and surroundings blockade consists of an earphone housing having a sound chamber inside thereof and a loudspeaker mounted therein, wherein a plurality of sound outlet meshes is mounted ...
12/23/2003
6567525Supra aural active noise reduction headphones
A supra aural headphone including an earphone that includes a shell body, a cushion mounted on the shell to thereby define an internal cavity behind the cushion, and an acoustical driver mounted within the internal cavity to reproduce sound for the user w...
05/20/2003
6477258Transducer assembly
A transducer assembly for use with an apparatus comprising a sound transmitting earpiece comprises a sound transmitting element (1) adapted to be worn between such an earpiece and the ear, a sound transducer (3), to be located remote from the earpiece and...
11/05/2002
6396935Headset and method for a headset
The present invention is a headset having a microphone and a speaker mounted on an essentially deformable boom. The deformable boom provides a selectively deformable ear loop portion that is adjustable to custom fit individual forms of an auricle of a use...
05/28/2002
6259796Earpiece without impulse and high frequency noise
The present invention relates to an earpiece impulse and high frequency noise which consists of an earpiece housing and a loudspeaker mounted therein, wherein a plurality of sound outlet meshes is mounted on one surface of the earpiece housing; a resonant...
07/10/2001
5844998Headphone apparatus
A headphone apparatus comprising an acoustic unit for converting an audio signal to an acoustic sound, a supporting structure for supporting the acoustic unit keeping a predetermined distance to the ear of a listener and an acoustic equalizer provided in ...
12/01/1998
5815579Portable speakers with phased arrays
A wearable speaker system which provides improved quality audio response and which does not interfere with the wearer's activities or block environmental sounds is disclosed. Transducer arrays, e.g. pairs of speakers, are situated in a wearable garment, h...
09/29/1998
5459290Acoustic transducer and acoustic transducing system
The present invention is directed to an acoustic transducer comprising acoustic transducing units respectively accommodated in cabinets which are attached in the vicinity of left and right ears and sound conduit tubes for conducting sounds emitted from th...
10/17/1995
5357585Headphone assembly
A headphone assembly adapted for engaging a user's head includes an adjustable headband having first and second ends. A right ear piece is attached to a first end, and a left ear piece is attached to a second end of the headband. Each ear piece is substan...
10/18/1994
5208868Headphone overpressure and click reducing
Apparatus for reducing pressure inside a headphone includes a port between front and back cavities. Preferably there is a resistive element and a high compliance diaphragm....
05/04/1993
5115473Transducer having two ducts
The present invention relates to a so-called bass-reflex electroacoustic transducing apparatus, wherein a plurality of sound ducts (ports) having the same equivalent mass and different lengths are provided in communication with a housing which incorporate...
05/19/1992
5048092Electroacoustic transducer apparatus
An electroacoustic transducer apparatus of a type that it is inserted into a cavum concha upon use. The electroacoustic transducer apparatus of the invention is applied to a headphone of a so-called in-the-eart type or so-called inner-ear type. This headp...
09/10/1991
4993074Earphone spacer
A spacing device which holds earphones away from the ears to create a sense of live music when the earphones are used in conjunction with loudspeakers. The spacers allow sound from loudspeakers set away from the user to reach the ear from all directions. ...
02/12/1991
4922542Headphone comfort
A baffle, which supports a driver for converting an input electrical signal into an acoustical output signal, is mounted to a headphone cup via a first cushion which sufficiently spaces the baffle from an outer ear to avoid contact. The baffle defines a f...
05/01/1990
4646872Earphone
An earphone having a housing, a speaker unit accommodated in the housing and a duct formed in the housing to pass sound emanated from the rear surface of the speaker unit and in which a mesh subjected to water repellent treatment is provided within the du...
03/03/1987
4529057Ear defenders
An ear defender for a headset, the ear defender comprising a rigid shell having holes in a central portion to permit the passage of ambient sound and including a valve mechanism to close the holes as required. The shell consists essentially of a unitary c...
07/16/1985
4429194Earphone
An earphone comprising a housing formed on the outer periphery of the front face with a flange for preventing the housing from disengagement from the concha when the housing is received in a recess of the concha, said housing being sized to be received in...
01/31/1984
4418248Dual element headphone
A stereophone includes cup assemblies which are supported over the ears of a user by a headband. Each cup assembly includes a piezoelectric acoustic transducer and a dynamic acoustic transducer. The reproduction of the entire audio spectrum is divided bet...
11/29/1983
4338489Headphone construction
In a diaphragm arrangement for electroacoustical transducers, in particular for headsets, one or more diaphragms lie in one plane which extends in the immediate proximity of the user's external ear and preferably parallel to the tangential plane of the us...
07/06/1982
4211898Headphone with two resonant peaks for simulating loudspeaker reproduction
A headphone is designed to have two resonant peaks for simulating loudspeaker reproduction. The headphone comprises a housing in which an electroacoustic transducer with a diaphragm is positioned, wherein the housing is formed with a rearward cavity posit...
07/08/1980
4160135Closed earphone construction
An earphone comprises a housing including a partition plate with an opening containing a diaphragm. An annular cushion is secured to the periphery of the partition and engages around the wearer's ear to form a coupling space between the diaphragm and the ...
07/03/1979
4097689Out-of-head localization headphone listening device
A headphone device comprising a pair of headphones for receiving output signals from various acoustic apparatus, wherein a direct sound signal or an output signal of an acoustic apparatus is applied to a reverberation supply circuit to produce an indirect...
06/27/1978
4041256Open-back type headphone with a detachable attachment
An open-back type headphone comprises a driver unit for operating as a sound generating source, a case accommodating therewithin said driver unit and having a front face on the side to confront and be pressed against an ear of a listener and a back face o...
08/09/1977
4005278Headphone
The headphone preferably comprises a toroidal seal ring which rests against or surrounds the user's ear and is constituted of a soft, yielding, and preferably elastic material. The seal ring, with the headphone positioned on the head of a user, forms a co...
01/25/1977
 
Sign InRegister
Username  
Password   
forgot password?