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This invention provides a pneumatic shoe lacing apparatus for the pneumatic lacing of shoe.
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| Number | Title | Issue Date |
| 8155339 | Air-droppable loudspeaker A loudspeaker has a horn adapted to both cause air drag and to direct acoustic waves. A speaker and signal generator are electrically coupled to the speaker and secure to the horn. The loudspeaker is transported over a target and dropped from a high elevation. Upon ... | 04/10/2012 |
| 7394905 | Voice amplifier for mask A voice amplifier for attachment to a mask has a sound reflector that faces outwardly of the mask when the voice amplifier is attached to the mask. A speaker faces inwards towards the sound reflector. Sound waves emanate from the speaker inward towards the sound ref... | 07/01/2008 |
| 7313242 | Hypersonic transducer This invention provides methods and apparatus for focusing a hypersonic beam to control both a direction and depth of audible formation delivery. Signals that are delivered to each of a plurality of hypersonic transducer elements are adjusted in phase so that transm... | 12/25/2007 |
| 7262358 | Portable voice studio system and method A portable voice studio apparatus is provided. The apparatus includes a microphone, a music generation device, a processing unit, and a headphone. The processing unit is contained in a single housing. The processing unit is electrically coupled with the microphone a... | 08/28/2007 |
| 7256685 | Applause device An applause device including a sound generator capable of generating at least one applause sound. The sound generator preferably can generate at least one sound which can indicate approval or disapproval, such as clapping, hollering, whistling, booing, and hissing. ... | 08/14/2007 |
| 7234462 | Speech transmission adaptor for use with a respirator mask A speech transmission adapter for use with a respirator mask. The respirator mask has an associated clean air source and defines a clean air envelope between the body of the respirator mask and the face of the wearer and is bounded by a sealing portion of the respir... | 06/26/2007 |
| 7231037 | Active audio compressing in telecommunication An output reducing system for a telephone system, e.g., implemented in a headset, includes an input line and an output line, wherein the input line transmits an incoming signal to an output transducer and the output line transmits an outgoing signal from an input tr... | 06/12/2007 |
| 7116940 | Embedded communication device within a belt A mobile communication device (10) embedded within a public safety officer's belt (11) can include a transceiver (14) integrated within the public safety officer's belt and a buckle (18) coupled to a first end of the public safety officer... | 10/03/2006 |
| 7106014 | Lectern A lectern incorporating a support member having a recess that can receive a control panel or laptop or notebook computer, for use with the by a speaker or other presenter. The support member defines an interior, and includes a keyboard tray slidably received within ... | 09/12/2006 |
| 7095868 | Phase plug with optimum aperture shapes A phase plug for optimally matching a drive-unit's diaphragm to the throat of a waveguide is disclosed. Specific embodiments of a circular diaphragm matched to an elliptical waveguide and a circular diaphragm to a rectangular waveguide are disclosed. ... | 08/22/2006 |
| 7088830 | Parametric 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 |
| 7040780 | Laser dazzler matrix A non-lethal laser weapon having a base to which a number of lasers are mounted. The lasers include a first laser oriented to project a first laser beam in a first direction, and a second laser oriented to project a second laser beam generally in the first direction... | 05/09/2006 |
| 7039210 | Briefcase or carrying case with integrated loudspeaker system Briefcase respectively carrying case for electronic devices or documents having a housing comprising a storage compartment arranged in the housing for storing at least one paper document, electronic device or object, at least one loudspeaker for reproduction of audi... | 05/02/2006 |
| 6947566 | Method and apparatus for a portable public address system An improved light weight, portable public address system configured with high fidelity omni-directional and high wattage directional speakers for both indoor and outdoor use with a wide variety of sound inputs assembled in a self-contained, compact housing. Optional... | 09/20/2005 |
| 6940984 | Hands-free megaphone The megaphone includes a headset 1 incorporating a microphone 5 which is connected via a flexible cable 8 to a body pack 2. The body pack includes a housing 9 which incorporates a battery compartment, an amplifier, a siren and an o... | 09/06/2005 |
| 6359990 | Parametric ring emitter A sound emiting 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 devic... | 03/19/2002 |
| 6015160 | Combined safety helmet and PA system A safety helmet for a bicyclist combined with a miniature public address (PA) system which makes it possible for the riding bicyclist to broadcast to those who are in the hearing range of the system. The helmet which is formed from an outer shell having a... | 01/18/2000 |
| 5859915 | Lighted enhanced bullhorn A sound projection device for use in speaking to one or more specific persons on a selective basis, the device including a housing having a directional aspect for aiming the housing at a target area, a gripping handle coupled to the housing to enable the ... | 01/12/1999 |
| 5640459 | Portable voice amplifier A portable voice amplifier includes a casing providing a housing and including a flat base, a curved front wall extending from the base upwardly and over the base, when viewed from the side, to the top of the unit. A speaker is mounted in the lower portio... | 06/17/1997 |
| 5463693 | Voice amplification adapter assembly for face mask A voice transmission system for a protective respirator, having a face mask with an inhalation port and a filter attached to the inhalation port, is provided. The voice transmission system comprises a microphone assembly adapted to be located between the ... | 10/31/1995 |
| 4508936 | Local external communication system A local external communication system for use by a person wearing a mask covering the nose and mouth and in sealing engagement with the face in which an assembly secured to the outer surface of the mask without in any way affecting the integrity of the ma... | 04/02/1985 |
| 4400591 | Simulated space helmet A helmet having a built-in modulator and amplifier for voice alteration and projection is disclosed. The helmet includes a forwardly projecting nose housing having a viewing shield and an array of light emitting diodes. The light emitting diodes are coupl... | 08/23/1983 |
| 4311872 | Portable voice communication system A throat microphone consists of a dynamic pressure transducer sealed within an airtight tympanic enclosure to be held by an elastic band on the user's throat near the voice box. The electrical signals generated by the transducer are applied as an input si... | 01/19/1982 |
| 4237341 | Portable self-contained amplifier and loudspeaker apparatus A portable self-contained amplified and loud speaker system and apparatus is disclosed herein having improved acoustical energy propagation in connection with musical sound distribution by a musician in a marching band or group. The apparatus includes cyl... | 12/02/1980 |
| 4166926 | Portable lectern and voice amplifier A compact portable lectern device having a voice amplifier contained therein which may be easily placed upon a tabletop to provide a speaker's lectern and public address system. The device includes a cabinet case having a hinged panel which when swung ope... | 09/04/1979 |
| 4090033 | Miniature portable public address system A portable public address system for use in motor buses which can also be used inside buildings or out-of-doors including a first case and a second case. Within the first case, which is approximately the size of a pack of cigarettes, is an amplifier circu... | 05/16/1978 |
| 4076957 | Portable sound device for public address A relatively small, compact and portable public address sound device embodied in a carrying case having a strap and a sound previous wall behind which the speaker is mounted. The case has a top flap which may be secured closed, has a volume control knob e... | 02/28/1978 |
| 4052561 | Lectern with detent-hinged shelf for portable sound system A self-contained sound system that may be either battery operated or operated from an AC source and that is contained in an attache-type case which is easily handled by one person. A folder for papers is disposed in the housing along with all of the elect... | 10/04/1977 |
