Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 7350618 | Multimedia speaker product A satellite speaker system includes a side firing low mid driver mounted in a sub-enclosure which is vented into a second sub-enclosure through an acoustic resistance vent and to a third sub-enclosure through a variable aperture second vent. The vents further serve ... | 04/01/2008 |
| 7311174 | Cloth for loudspeaker diaphragm, loudspeaker diaphragm, and loudspeaker In a diaphragm for a loud-speaker of the present invention, an increase in tensile strength is averagely attained as a whole, and the over all diaphragm is uniformly colored without showing any lattice pattern. The diaphragm includes a woven fabric comprising yarns ... | 12/25/2007 |
| 6973994 | Apparatus for increasing the quality of sound from an acoustic source An apparatus for increasing the quality of sound from an acoustic source comprises in one embodiment a hollow enclosure, an acoustic source, an acoustic guide, a pair of acoustic inlet openings, a pair of acoustic exit openings, and pair of acoustic paths, wherein t... | 12/13/2005 |
| 6549637 | Loudspeaker with differential flow vent means Differential flow vents allow airflow within a vent to be preferential. A flange disposed within a vent introduces non-linearities and causes a preferred direction of airflow into an expanding volume. The differential flow vents are used in conjunction wi... | 04/15/2003 |
| 6513624 | Loudspeaker enclosure A modularized loudspeaker enclosure having an open-ended enclosure body, a loudspeaker support at one open end and an end structure at the other end. The enclosure body can be modified to alter the volume of the enclosure. A finally assembled enclosure ca... | 02/04/2003 |
| 6450289 | Noise attenuation device A noise attenuation device having an array of quarter wave resonators which have varying mouth widths disposed adjacent an aperture or ventilation opening having a predefined width. The resonators are tuned to a resonant frequency, increasing from one fac... | 09/17/2002 |
| 6418229 | Directional microphone, in particular having symmetrical directivity The present invention relates to a directional microphone, in particular having symmetrical directivity, having an interference tube with a tube axis which is provided with a row of sound inlets arranged at least approximately parallel to tube axis, and w... | 07/09/2002 |
| 6237642 | Sealing-tight pipe with acoustic damping for the transport of gaseous fluids, and a method of producing the same A sealing-tight pipe with acoustic damping for the transport of gaseous fluids, inter alia for the admission of air for combustion into a motor vehicle heat engine, characterised in that it comprises a first layer 1 of a porous material which is permeable... | 05/29/2001 |
| 6199656 | Casing for noise attenuation in a rock drilling rig A rock drilling rig includes a movable carrier with a boom attached to it and movable in various ways. The free end of the boom is provided with drilling equipment. The drilling equipment is enclosed in a casing that prevents noise generated during drilli... | 03/13/2001 |
| 6148631 | Silencer and air conditioner A plurality of honeycomb pipes bundling a plurality of fine tubes are inserted and fixed at desired positions in a refrigerant piping at proper intervals to form a silencer, and noise is reduced by straightening and homogenizing the disturbance of refrige... | 11/21/2000 |
| 6079515 | Speaker enclosure A speaker enclosure including at least one pair of tubular cylinders, one of which is slidable inside the other, one of the tubular cylinders having one end open and a speaker located in the other end thereof. The speaker enclosure may also include additi... | 06/27/2000 |
| 6001132 | Preparation of aqueous solutions suitable for finishing cellulose containing textile materials Aqueous solutions of N-methylol compounds of carboxamides, urethanes, ureas and aminotriazines or of N-methylol ethers of these compounds that are suitable for finishing cellulose-containing textile materials are prepared by reaction of compounds having o... | 12/14/1999 |
| 5946401 | Linear speaker array A sound delivery system comprises at least one elongated speaker mounting element. A multiplicity of individual speakers are mounted in the mounting element to form a linear array of speakers with each speaker being adapted to radiate sound in a direction... | 08/31/1999 |
| 5872855 | Multiple voice coil, multiple function loudspeaker Loudspeaker improvements are disclosed to add versatility and economy, particularly for multimedia applications. These improvements include: (1) the printing of voice coil conductors, (2) adding conductive elements to the sound driver surface, (3) using m... | 02/16/1999 |
| 5844176 | Speaker enclosure having parallel porting channels for mid-range and bass speakers A speaker enclosure with at least one woofer and one mid-range speaker with associated parallel sound channels and ports for direction of the back waves generated by the speakers. The woofer and mid-range speaker are in a spaced relationship with the soun... | 12/01/1998 |
| 5802190 | Linear speaker array A sound delivery system comprises at least one elongated speaker mounting element. A multiplicity of individual speakers are mounted in the mounting element to form a linear array of speakers with each speaker being adapted to radiate sound in a direction... | 09/01/1998 |
| 5673329 | Omni-directional loudspeaker system A loudspeaker system includes a flexible compressible tube having a woofer mounted at one end with its cone directed outward, and a vented baffle mounted at the other end. A first sound dispersion element is mounted with its apex facing the cone of the wo... | 09/30/1997 |
| 5664020 | Compact full-range loudspeaker system A compact full-range loudspeaker system includes an elongated enclosure having two open ends joined by a hollow interior, which enclosure may be of fixed dimension or telescoping, and has a full-range speaker mounted at each end of the cylindrical enclosu... | 09/02/1997 |
| 5657793 | Vacuum cleaner hose and method for making same A method and apparatus for manufacturing a hose for a vacuum cleaner, such hose having anti-whistling characteristics. In a standard blow molding process, a blow pipe is configured with a plurality of printing rollers having arcuate outer surfaces configu... | 08/19/1997 |
| 5450495 | Loudspeaker system A loudspeaker apparatus includes an elongated hollow tube having two open ends, which tube may be a rigid or telescoping tube, and has a wide range speaker mounted at each end of the hollow tube. A pair of deflector surfaces may be flat, polymer surfaces ... | 09/12/1995 |
| 5353261 | Vibrating apparatus A hollow member having a continuous sound-waveguide therein is formed by a plate shaped rigid base member microwave welded to an overriding member of flexible and semi-rigid plastic made, e.g., by vacuum forming. A speaker and an amplifier are confined in... | 10/04/1994 |
| 5294131 | Audible arrow A hunting arrow having a hollow shaft accommodating a sound generator actuated upon impact with a target to aid in finding the arrow. The shaft has one or more slots that function to direct the generated sound. The sound generator includes a piezio electr... | 03/15/1994 |
| 5058169 | Public address system A public address system which consists of a longitudinal tubular member extending through an area serviced by the system, with a longitudinal opening and having a plurality of speakers spaced at regular intervals. The audio signals generated from the spea... | 10/15/1991 |
| 5032035 | Platen roll core A platen roll core has a plurality of roll elements, and spacers interposed between adjacent roll elements of attenuation of propagated vibrations. The core, seen in terms of vibrating system, is equivalent to the sum of vibrating systems independent of o... | 07/16/1991 |
| 5025886 | Multi-ported and multi-directional loudspeaker system This invention relates to a loudspeaker having a plurality of sound collecting tubes attached to the rear of the speaker frame or the sound collecting tubes forming the speaker frame for collecting and directing sound waves emitted toward the rear of the ... | 06/25/1991 |
| 4893695 | Speaker system A speaker system which has a speaker unit with a diaphragm and an acoustic path provided on the front side of the diaphragm so as to guide sound waves emitted from the diaphragm. The acoustic path is defined by a sound absorbing member. The space in the a... | 01/16/1990 |
| 4789044 | Narrow directional microphone A narrow directional microphone comprising a microphone unit having forward and rearward sound terminals, and an interference pipe to cooperate with said microphone unit and to effect a narrow directional orientation. The microphone unit is positioned at ... | 12/06/1988 |
| 4762150 | Hose having orifice A hose having an orifice is disclosed. The hose comprises a nipple which is provided in one part of the inside of the hose for the purpose of forming an orifice; a sleeve which is fitted over the outer surface of the hose at a position corresponding to th... | 08/09/1988 |
| 4577536 | Feed apparatus for automatic lathes Feed apparatus for automatic lathes comprises a central section bar surrounded by one or more peripheral section bars, longitudinal grooves of arcuate cross-section in all the section bars matching and cooperating with each other to form longitudinal pass... | 03/25/1986 |
| 4349082 | Acoustical damping element and method of forming same An acoustical damping element for acoustical tubing such as a hearing aid earpiece, in which a disc of wire screen is positioned over a disc of flexible fabric of a selected acoustic resistance, over the mouth of the tubing. An insertion tool of diameter ... | 09/14/1982 |
| 4206831 | Loudspeaker coupler An electrically driven loudspeaker is coupled to the atmosphere, which is to carry sound to the human ear, through a hollow coupler the inlet end of which has a cross sectional area comparable to the effective area of the loudspeaker, said cross sectional... | 06/10/1980 |
| 4189627 | Electroacoustic transducer filter assembly An electroacoustic transducer assembly adapted to filter sound waves in a digital communication system incorporates a plurality of tandemly arranged tubular members and a transducer. Each tubular member includes an apertured plate end, a tubular cavity an... | 02/19/1980 |
| 3930560 | Damping element A damping element comprising fiberous fuseable material shaped to form a cup-like member which may be inserted in the sound openings of an acoustic transducer to provide a selected acoustic resistance.... | 01/06/1976 |
