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| Number | Title | Issue Date |
| 7841291 | Ultrasonic and/or infrasonic animal repellent horn powered by compressed air canister combined with a strobe light A horn powered by a compressed air canister and/or battery pack, that emits sounds that are too high for humans to hear (ultrasonic) and/or too low for humans to hear (infrasonic), to act as a means for repelling animals that can hear these sounds (e.g., mammals, bi... | 11/30/2010 |
| 7350567 | Increasing media permeability with acoustic vibrations A coalbed methane production method comprises acoustic radiators strategically placed within exhaust boreholes that sonically vibrate the immediate wall areas. The gas volume output that can be realized by an exhaust well is mainly determined by the penetrability of... | 04/01/2008 |
| 7205707 | Laser machining of electroactive ceramics Laser beam machining is applied to form arbitrarily shaped electroactive ceramics for transducers (e.g., electromechanical sensors and actuators). One particularly preferred embodiment of the invention comprises machining parallel grooves in a ceramic plate to impro... | 04/17/2007 |
| 7055541 | Method and mechanism for producing suction and periodic excitation flow A method and mechanism of producing a suction and periodic excitation flow. The method includes providing fluid flow from jet port with diameter dl at a controlled input pressure (Pin), directing the flow to a conduit with diameter d2, >d1, allowing additional fluid... | 06/06/2006 |
| 7051953 | Nozzle device A nozzle device for ejecting a liquid onto vehicle windows or headlight lenses. At least one rotation chamber is formed inside a nozzle body. The liquid enters the chamber, is rotationally displaced in such a way that it is then ejected as a homogeneous fan jet via ... | 05/30/2006 |
| 6979937 | Laser machining of electroactive ceramics Laser beam machining is applied to form arbitrarily shaped electroactive ceramics for transducers (e.g., electromechanical sensors and actuators). One particularly preferred embodiment of the invention comprises machining parallel grooves in a ceramic plate to impro... | 12/27/2005 |
| 6959706 | Safety circuit for chimney fans A single-phase asynchronous motor with an auxiliary winding in which non-rotation is detected by the absence of an induced voltage across the auxiliary winding when it is briefly disconnected from its power source. Before the detection, the motor is briefly provided... | 11/01/2005 |
| 6926187 | Ultrasonic manufacturing apparatus The present invention pertains to a multilayer flexible wiring board. The multilayer flexible wiring board including first and second patterned wiring layers, a resin film interposed between a surface of the first wiring layer and a surface of the second wiri... | 08/09/2005 |
| 6915697 | Testing and monitoring of a shock wave or pressure wave source A device for the testing and monitoring of the function of a shock wave or pressure wave source is provided. The testing and monitoring device is characterized in that a passive non-linear transmission element transforms very short shock wave pulses received by it, ... | 07/12/2005 |
| 6338765 | Ultrasonic impact methods for treatment of welded structures This invention provides methods of treatment for work products of materials such as steel, bronze, plastic, etc. and particularly welded steel bodies by pulse impact energy, preferably ultrasonic, to relax fatigue and aging and extend expectant life. The ... | 01/15/2002 |
| 6104281 | Radio frequency identification transponder with electronic circuit enabling/disabling capability An RF tag has an enable/disable circuit connected to a critical part of an electronic object/circuit, e.g. a computer mother board. The critical part of the circuit is any circuit component and/or connection that can enable and/or disable the electric cir... | 08/15/2000 |
| 5864517 | Pulsed combustion acoustic wave generator A pulsed combustion acoustic wave generator includes a tubular barrel having an inlet end and an open outlet end, a fuel controller for metering a controlled quantity of fuel into the inlet end of the barrel, an oxidant controller for metering a controlle... | 01/26/1999 |
| 5430691 | Shock wave generator A two-phase shock wave generator including a combustion chamber including a first, combustion, portion having an input port and a second, detonation, portion downstream of the first portion and having an output aperture; an air-fuel supply line, operative... | 07/04/1995 |
| 5341762 | Ultrasonic pest control device and method for constructing the same An ultrasonic transmitter and methods for making the same. A plurality of blocks are provided and are formed such that, when they are coupled together, they form at least one ultrasonic whistle in fluid communication with a manifold and an acoustic horn.... | 08/30/1994 |
| 5297501 | Intense noise generator A noise generator is created by having a high pressure gas applied to a Mach 2 nozzle which is combined in an adjustable nozzle assembly with a resonance tube of adjustable length with a closed end forming a Mach disk between them. The resultant compressi... | 03/29/1994 |
| 4970704 | Acoustical generator Disclosed is an acoustical energy generator having a venturi front section o which is attached a pair of rear tail pipes. A pair of return flow manifolds are respectively connected between said rear tail pipes and said front venturi section at such locatio... | 11/13/1990 |
| 4868541 | U-turn signal device An aftermarket signaling system for use in an automobile including one, or more, manually powered ultrasonic sending units and an ultrasonic receiver which may be adhesively mounted in the automobile. The receiver includes a solar panel for recharging its... | 09/19/1989 |
| 4647336 | Rebuildable support assembly An assembly for providing support to a component, such as an ultrasonic component, including converters, boosters and horns which are subjected to continuous and repeated impacts and stresses. Such devices generally have integral nodal flanges for support... | 03/03/1987 |
| 4556963 | Underwater sound generator An underwater sound generator comprising dual opposed pistons in a housing. Dynamic seal assemblies of flexible waterproof material are compressed against the peripheries of the pistons and the housing and form a watertight seal that allows axial motion. ... | 12/03/1985 |
| 4499845 | Horn for use in transmitting ultrasonic vibrations The horn comprises a body portion, a detachable and hence replaceable end portion, and a securing member securing the end portion to the body portion. The securing member has a first threaded portion received in a tapped hole in the body portion and a sec... | 02/19/1985 |
| 4217786 | Transmission cable for use with an ultrasonic device A transmission cable for use with an ultrasonic device such as an ultrasonic machining device is provided. The transmission cable of the present invention comprises a plurality of fine metallic wires coupled between the output terminal of an ultrasonic os... | 08/19/1980 |
| 4196406 | Ultrasonic control device A control device includes a housing having a serpentinely disposed channel and a cover, secured to the housing, which converts the channel into an ultrasonic waveguide. One end of the waveguide is bounded by a stationary reflector and the other end of the... | 04/01/1980 |
| 4193049 | Ultrasonic touch control panel In a first embodiment, a control device includes a housing having a serpentinely disposed channel and a cover, secured to the housing, which converts the channel into an ultrasonic waveguide. One end of the waveguide is bounded by a stationary reflector a... | 03/11/1980 |
| 4142478 | Ultrasonic signal generating device An improved device for generating an ultrasonic signal for use in an area protected by an alarm actuated by an ultrasonic signal. The device includes a tuned, acoustic rod within a cylinder typically about the size of a pen adapted to be worn in a shirt p... | 03/06/1979 |
| 4127081 | Jet resonator pulsator A pulsator for a jet resonator finding particular value and utility in rodent control while maintaining and achieving improved effectiveness together with built-in safe guards against accidental detrimental or fatal effects of ultrasonic sound on human be... | 11/28/1978 |
| 4122797 | Ultrasonic sound source and method for manufacturing rectangular diaphragm of ultrasonic sound source The present invention is directed to an ultrasonic sound source made up of diaphragms composed of rectangular plates adapted, in dimensions, to vibrate in a stripes mode, and mounted, in spaced relation and in multiple stages, on a longitudinal resonance ... | 10/31/1978 |
| 4104610 | Ultrasonic wave horn An ultrasonic wave horn adaptable to any desired radiation pattern varying in length-to-breadth ratio of intended detecting area. The horn comprises at least a horn body having gradually expanding caliber from a constricted throat to an expanded opening w... | 08/01/1978 |
| 4095667 | Portable underwater signalling transducer A portable underwater signalling apparatus for use by divers having self-contained underwater breathing apparatus (scuba) to signal to other divers as well as surface and underwater vessels. The apparatus utilizes compressed air from the diver's tanks to ... | 06/20/1978 |
| 4086122 | Hydroacoustic welder Apparatus is described for welding of thermoplastic parts and the like where the heat to melt the surface or surfaces to be joined is produced by friction during high frequency rubbing. The parts are adapted to be placed on a platen which enables the mati... | 04/25/1978 |
| 3973250 | Acoustically coupled burglar alarm system An ultrasonic whistle is mounted together with a pin on a window or door so that movement of the window or door causes relative movement between the whistle and pin. Such movement releases compressed gas from a container which activates the whistle. A cen... | 08/03/1976 |
| 3943884 | Fluidic frequency generator A helix of wire having predetermined dimensions is encircled by a sleeve of selected material which conforms to the exterior surface configuration of the helix. When a gas is applied into one end of the helix-sleeve combination, an audio frequency signal ... | 03/16/1976 |
| 3934544 | Ultrasonic wave transmitter mechanism An ultrasonic wave transmitter employs a resonant rod to generate an ultrasonic wave in response to the striking of an end thereof by means of a striking member. A striking member support employed for controlling the movement of the striking member relati... | 01/27/1976 |
