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A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.
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| Number | Title | Issue Date |
| 7289038 | Underwater sound radiation apparatus A plurality of actuators are provided at predetermined intervals on the reverse surface of a predetermined side wall of a swimming pool. When an electric signal corresponding to a sound to be propagated in the water is given to the actuators, the electric signal is ... | 10/30/2007 |
| 7269266 | Method and apparatus for tooth bone conduction microphone A tooth microphone apparatus worn in a human mouth that includes a sound transducer element in contact with at least one tooth in mouth, the transducer producing an electrical signal in response to speech and a means for transmitting said electrical signal from the ... | 09/11/2007 |
| 7221966 | Wireless communication systems for masks or helmets Various types of wireless communication systems for masks or helmets can be mounted externally or internally on a mask. Different types of microphones can be employed, for example, a bone-conducting microphone or a directional microphone. Ear speakers mounted at var... | 05/22/2007 |
| 7162042 | Modulator processing for a parametric speaker system A parametric loudspeaker system using improved modulators to compensate for the non-linearity of the parametric process in air when driving the air at saturation levels and below saturation levels. The parametric loudspeaker uses a pre-processed single sideband modu... | 01/09/2007 |
| 7120509 | Sound and image producing system An invented sound and image producing system is disclosed. The system may include a cartridge that stores, processes and controls data representative of sound and/or images, and a player that provides the interface, annunciation and transduction of sound and/or imag... | 10/10/2006 |
| 7071844 | Mouth mounted input device A mouth mounted computer input device is comprised of a curved housing shaped to closely engage the roof of the mouth against the front teeth. A touch pad is arranged on the bottom of the housing, and an electrical stimulator is arranged on the top of the housing. A... | 07/04/2006 |
| 7032591 | Snorkel with improved purging system A snorkel for use in swimming. The snorkel includes an elongate breathing tube having an upper portion and a lower portion. A lower opening is formed in the lower portion and an upper opening is formed in the upper portion. A mouthpiece is located at the lower openi... | 04/25/2006 |
| 7035805 | Switching the modes of operation for voice-recognition applications A system and method for switching between the command-mode of operation and the text-mode of operation in voice-recognition systems. The system operates using voice-recognition software and a mechanical switch which together enable the system to differentiate betwee... | 04/25/2006 |
| 7023338 | Apparatus, systems and methods for aquatic sports communications The exemplary embodiment of the present invention integrates a two-way communications device into a personal floatation device (“PFD”; sometimes also referred to herein as a “life vest”). Integration of the two-way communications device in the exemplary PFD ... | 04/04/2006 |
| 7016508 | Audio apparatus An audio apparatus comprising a modulator 12 for modulating a first ultrasonic signal 29 with an audio signal to provide a second ultrasonic signal 30; a transducer 15 for converting the second ultrasonic signal 30 into an ultrason... | 03/21/2006 |
| 7006407 | Communication system for underwater use For digital underwater transmission an information sequence (17) of digital bits is partitioned into a succession of symbols each comprising n bits where n is equal to or greater than one (2n potential symbols), each symbol (19) is replaced ... | 02/28/2006 |
| 6980487 | Underwater communication system In a digital acoustic transmission device in which a digital sequence (31) is electrically modulated (22) on a carrier cos ωt, the modulated carrier (23) is prefaced with at least two pulse signals (24) of known timing relative to each o... | 12/27/2005 |
| 6954405 | System for housing an audio system in an aquatic environment A submersible, hydrostatic pressure tolerant enclosure for a portable audio device is disclosed. Also disclosed is a removable lid allowing for the inserting and removing of the device from the enclosure. The disclosure further provides a connector system and an aud... | 10/11/2005 |
| 6922473 | Dual mode transmission device A dual-mode transmission device is provided for use with a radio device configured for either push-to-talk operation or voice-operated operation. The dual-mode transmission device includes a mode selecting apparatus that may be switched between a first position in w... | 07/26/2005 |
| 6769508 | Underwater audio system An underwater audio system includes a framing having at least one speaker mounted thereon and at least one upwardly extending arm member. The arm member(s) are arranged to slide under the strap of a diver's mask in use and to be held in place between the strap and t... | 08/03/2004 |
| 6735149 | Device forming a snorkel mouthpiece or diving regulator A device forming a mouthpiece for a snorkel or diving regulator, adapted to fit in the mouth of a diver or swimming and comprising a body provided with an air intake and extended by two lateral branched each provided with a bite tab, and at least one transducer buzz... | 05/11/2004 |
| 6426919 | Portable and hand-held device for making humanly audible sounds responsive to the detecting of ultrasonic sounds A portable and hand-held device for making humanly audible sounds responsive to the detecting of ultrasonic sounds. The device includes a hand-held housing and circuitry that is contained in the housing. The circuitry includes a microphone that receives t... | 07/30/2002 |
| 5926532 | Integrated wireless communication system A wireless communication system, for example for underwater divers, wherein the receiver portion and the transmitter portion of the system are mounted at the user's ear and mouth, respectively, by a single strap. The single strap is also used to maintain ... | 07/20/1999 |
| 5889730 | Underwater audio communication system using bone conducted sound An underwater audio communication system to be worn by a diver is connected with and carried by a conventional face mask such that bone conduction occurs through the mastoid bone of the diver (i.e., behind the ear of the diver). The underwater audio commu... | 03/30/1999 |
| 5825718 | Underwater communication apparatus and underwater microphone, and closed-type sound converter An underwater communication apparatus is provided which enables safe and clear speech transmission. An exhalation pipe which defines an acoustic space for communicating with an interior space of a mouthpiece is connected at one end to a site adjacent a br... | 10/20/1998 |
| 5793855 | Integrated wireless communication system A wireless communication system, for example for underwater divers, wherein the receiver portion and the transmitter portion of the system are mounted at the user's ear and mouth, respectively, by a single strap. The single strap is also used to maintain ... | 08/11/1998 |
| 5706251 | Scuba diving voice and communication system using bone conducted sound The invention is directed to a scuba diving mouthpiece for supplying air to a diver. The mouthpiece includes a mouth engageable body having at least one biteplate. Each biteplate is adapted for being disposed between and engaged by the teeth of the diver.... | 01/06/1998 |
| 5661699 | Acoustic communication system An acoustic communication system comprises: a voice processing circuit wh generates a first signal representing a voice message; a noise sensor channel which generates a second signal in response to detecting background noise in an environment; a microco... | 08/26/1997 |
| 5586176 | Integrated wireless communication system A wireless communication system, for example for underwater divers, wherein the receiver portion and the transmitter portion of the system are mounted at the user's ear and mouth, respectively, by a single strap. The single strap is also used to maintain ... | 12/17/1996 |
| 5579284 | Scuba diving voice and communication system using bone conducted sound An underwater scuba diver communication system is disclosed which is comprised of an oral bone conduction mouthpiece based sound transmission and conduction device, an oral--mouthpiece based microphone, an ultrasonic sound transmission device, an ultrason... | 11/26/1996 |
| 5555533 | Control system for diver VOX/PTT communication system A control system which enables a diver to electronically switch between voice operated (VOX) operation and push-to-talk (PTT) operation by actuation of the existing momentary contact PTT switch used in most diver communication systems. A counter and multi... | 09/10/1996 |
| 5539705 | Ultrasonic speech translator and communications system A wireless communication system undetectable by radio frequency methods for converting audio signals, including human voice, to electronic signals in the ultrasonic frequency range, transmitting the ultrasonic signal by way of acoustical pressure waves ac... | 07/23/1996 |
| 5493079 | Vocal communication snorkel A vocal communication snorkel includes a hollow body having a breather tube, adapted to extend above the water, coupled thereto and a mouthpiece adapted to be held by the lips of a snorkeler. The body has a pair of inwardly curved, spherically shaped diap... | 02/20/1996 |
| 5455842 | Method and apparatus for underwater communication Waterborne acoustic signals are received and processed into electrical driver signals to energize a transducer held in selectively controllable vibration-transmitting engagement with a tooth of an underwater diver. The transducer converts the electrical s... | 10/03/1995 |
| 5222050 | Water-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 |
| 5159580 | Acoustic transducer for sending and receiving acoustic communication signals A uniquely designed acoustic transducer comprising a stack of piezoceramic elements (other piezoelectric materials may be used) mounted upon a tuned, shaped transmit/receive head made of hardened metal alloy. The ceramic stack is preloaded to the head via... | 10/27/1992 |
| 5136555 | Integrated diver face mask and ultrasound underwater voice communication apparatus A novel totally integrated divers face mask and ultrasound underwater voice communication apparatus having integral transducer-transmit-receive-power source enclosures of low profile, flexible hands-free-voice or push-to-talk operation while submerged, an... | 08/04/1992 |
| 5060308 | Firefighters mask communication system A communication system for attachment to a standard type of firefighter's face mask. Generally speaking, the communication system is mounted on opposite sides of the glass/plastic lens portion without affecting the integrity of the mask seal or the breath... | 10/22/1991 |
| 4980926 | Voice communication unit A voice communication unit is mounted with respect to a full face mask to allow the wearer of the mask to communicate with others. An optical transmitter positioned inside the mask responds to the user's voice to transmit an optical signal through the fac... | 12/25/1990 |
| 4926398 | Pressure compensated communication system The present invention provides a pressure compensated communication system having at least one audio transducer, the pressure compensated communication system comprising a fluid tight housing for the or each audio transducer, the or each housing having a ... | 05/15/1990 |
| 4852682 | Underwater voice communicator An underwater communicator comprising a transmitter for transmitting acoustical energy between mediums having differing impedance. The transmitter includes first and second ends. The first end is exposed to a first medium while the second end is exposed t... | 08/01/1989 |
| 4839871 | Underwater communication device An underwater speaker system having a pressure equalization system enabling the speaker to operate in its intended fashion over a wide range of water depths, e.g. from two feet up to sixty feet. Water pressure is applied to a diaphragm that forms one wall... | 06/13/1989 |
| 4799263 | Speaking and hearing system for breathing apparatus A speaking and hearing system for respirators, where the apparatus wearer is connected to a respiratory gas supply independent of the ambient air. A suppression, independent of acoustic signals, of the breathing noises of the apparatus wearer is provided ... | 01/17/1989 |
| 4780900 | Radiogenic tube radiological device with magnetic bearings A radiological device is provided of the type comprising a radiogenic tube with magnetic bearings, said radiogenic tube being contained in a sheath as well as electronic means for controlling said magnetic bearings.... | 10/25/1988 |
| 4679177 | Underwater communication system An underwater communication system of the present invention comprises a transmitter including message inputting means having keys, each being assigned to each word, code converting means for converting a key input entered through the inputting means to a ... | 07/07/1987 |
