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| Number | Title | Issue Date |
| 4932007 | Fish behavior control system A device for modifying the behavior of fish, causing them to swim along a desired path, projects sequences of sound into the water, resulting in sound wave patterns which direct the fish along the desired path. The device includes a fish detector, which d... | 06/05/1990 |
| 4922468 | Method and apparatus for controlling aquatic population in defined areas A method for controlling the population of marine and aquatic species in an area of water includes the development of data concerning the response of various species to stimuli in different environmental conditions, and the generation of stimuli in the co... | 05/01/1990 |
| 4896305 | Animal luring device An animal luring device is set forth wherein a microphone is operatively associated with a recording and play-back mechanism to initially record and then broadcast an animal sound through a selected frequency. The device is operative through an associated... | 01/23/1990 |
| 4890580 | Electronic flea-repelling device including an integrated circuit A portable electronic flea-repelling collar for domestic animals activated by a self-contained battery comprises a printed circuit board on which are mounted an electrical to ultrasonic transducer, an integrated circuit for deriving periodic electric puls... | 01/02/1990 |
| 4876674 | Sonic collar sheep protector Predator control sonic collar unit for protecting livestock when placed around the neck, comprising means for detecting startled motion, means for transforming the startled motion into an electrical impulse, and means for converting the electrical impulse... | 10/24/1989 |
| 4769794 | Bird-scaring method and device For scaring birds, at least two acoustic signals are generated whose frequencies are periodically modulated within a range between about 30 and 9000 Hz, the modulation period ranging between about 0.01 and about 5 seconds. The signals differ in the freque... | 09/06/1988 |
| 4748938 | Electronic flea repelling device with means for carrying collar strap behind the device housing Fleas are repelled from a four-legged animal by compressional waves derived from an electric-compressional wave transducer driven by electronic circuitry powered by a battery. The battery, circuitry and transducer are mounted in a housing carried by a col... | 06/07/1988 |
| 4725993 | Device including battery-activated oscillator A low duty cycle relaxation oscillator periodically gates an ultrasonic frequency relaxation oscillator into an on state. The ultrasonic frequency oscillations are supplied to an electric-compressional wave transducer by way of a push-pull driver. The dut... | 02/16/1988 |
| 4689776 | Portable animal control unit A portable animal control unit includes circuitry incorporated in a miniature housing for generating an animal influencing modulated soundwave in the ultrasonic frequency range. A first oscillator produces an output signal for driving an ultrasonic transd... | 08/25/1987 |
| 4669424 | Apparatus for and method of repelling pests such as fleas and ticks Pests, such as fleas and ticks, are repelled from domestic animals, such as dogs and cats, by attaching an ultrasonic compressional wave energy source to the animal in such a position that a beam of the compressional wave energy is directed downwardly tow... | 06/02/1987 |
| 4658386 | Ultrasonic sound wave generating device for repelling animals A device for repelling animals is disclosed which is adapted for use with refuse and garbage containers to discourage entry therein by foraging animals. The device comprises: (a) a detector for remote-sensing the presence of an animal within its vicinity;... | 04/14/1987 |
| 4646276 | Acoustic fish behavioral control device An acoustic device for eliciting either attraction or repulsion behavioral responses in fish comprises a water tight enclosure having a radiating surface rigidly supported in one end thereof. Drive means for the radiating surface are provided with the cap... | 02/24/1987 |
| 4616351 | Pest control apparatus Ultrasonic pest control apparatus comprising an elongated housing having opposite ends, a sound generator carried by the housing adjacent one end thereof and including at least one transducer for providing output sound waves when driven by an electrical s... | 10/07/1986 |
| 4566085 | High intensity ultrasonic generator A high intensity ultrasonic sound generator for producing bursts of ultrasonic frequency and a method of controlling vermin and pests by projecting such bursts into a space from which such vermin and pests are desired to be eradicated. The apparatus has a... | 01/21/1986 |
| 4563759 | Method of and system for threatening pests A method of and system for threatening noxious animals and insects or pests such as rats or mice, pigeons, cockroaches and the like in an area by sonifying the area with an ultrasonic energy. An electrical signal which randomly fluctuates in frequency in ... | 01/07/1986 |
| 4562561 | Ultrasonic pest repeller Apparatus for use as an ultrasonic pest repeller capable of having three different modes of operation for the purpose of generating ultrasonic signals for use in repelling all types of pests. The apparatus includes a circuit coupled at its output with one... | 12/31/1985 |
| 4484316 | Acoustic vermin-repellent device An acoustic vermin-repellent device comprises a trumpet-shaped main body, a first bowl-shaped reflection plate disposed in the vicinity of the small diameter end portion within the main body, a second bowl-shaped reflection plate disposed in the vicinity ... | 11/20/1984 |
| 4484315 | Ultrasonic pest control device A device for generating and radiating ultrasonic sound waves for the control of pests such as rodents, insects and the like comprising a housing having at least two surface portions, an electrically operated sound generator carried by the housing associat... | 11/20/1984 |
| 4414653 | Rodent control device A device which repels rodents by generating sound waves at a frequency offensive to rats and mice. The sound waves are generated by coils that are alternately energized and deenergized by a solid state control circuit. The circuitry includes two timing ci... | 11/08/1983 |
| 4392215 | Pest control apparatus Ultrasonic pest control apparatus comprising an elongated housing having opposite ends, a sound generator carried by the housing adjacent one end thereof and including at least one transducer for providing output sound waves when driven by an electrical s... | 07/05/1983 |
| 4386341 | Security apparatus with audible alarm of enhanced urgency A security device incorporates apparatus for producing a special alarm sound in response to a change in acceleration sensed with a special omnidirectional sensor and under the control of special SCR circuitry. The circuitry and sensor are especially adapt... | 05/31/1983 |
| 4366562 | Rodent repelling device A ground inserted rod supports at its upper end a base having a cup-shaped member in which is loosely received a motor housing. During motor operation an eccentric blade imparts random movement to the motor housing to cause same to impact the cup-shaped m... | 12/28/1982 |
| 4349898 | Sonic weapon system A system for transmitting a parametrically pumped sonic signal through a transmission medium to a remote location is disclosed. The preferred system, which is particularly intended for use as a sonic weapon, comprises a sound source; means for separating ... | 09/14/1982 |
| 4346370 | Ultra-sonic pest control apparatus An ultra-sonic pest control apparatus includes a tone generator for generating an output frequency as a function of applied voltage, a transducer electrically connected to the output of the tone generator for delivering ultra-sonic sound, and a generator ... | 08/24/1982 |
| 4338593 | Rodent control apparatus and method Apparatus and method for producing ultrasonic sound waves used to disperse rodents including negative feedback damping of a tuned band-pass filter output circuit. An electrical signal is frequency modulated, amplitude modulated asynchronously with the fre... | 07/06/1982 |
| 4284845 | Pest eliminator A device for freeing an area of birds, insects, or other pests which simultaneously emits two separate audio frequencies which are shifted periodically. The device comprises two separate oscillators whose output signals are mixed together at the input of ... | 08/18/1981 |
| 4219884 | Apparatus for controlling insects Electromechanical apparatus producing random ultrasonic noise is disclosed for killing insects. A number of coils are provided, each having primary and secondary windings which are wrapped around a metal core. The windings are electrically interconnected ... | 08/26/1980 |
| 4218676 | Method for chasing game employing a set of timed sound generators In a method for chasing game, a set of portable sound generators are set out in the field in accordance with a predetermined pattern for chasing the game in a predetermined direction when the sound generators are actuated. Each of the sound generators has... | 08/19/1980 |
| 4215429 | Rodent-repelling device An energy-pulsating rodent-repelling device designed to discourage rodents, especially of the burrowing type, from inhabiting a general area above and below the ground surface within the vicinity of the operating device which includes a plurality of elect... | 07/29/1980 |
| 4186387 | Ultrasonic pest repellent method and system A method of and system for sonifying a portion of a given area to rid the area of unwanted pests comprising providing at least one ultrasonic point source each producing a set of pulsed signals having a randomly varying frequency in the range of about 18-... | 01/29/1980 |
| 4178578 | Pest control apparatus Ultrasonic pest control apparatus comprising a pair of transducers, one in the form of a ring and the other in the form of a disc positioned within the ring, carried by a housing, a pair of oscillators operatively connected to the transducers, a timer con... | 12/11/1979 |
| 4163966 | Rodent repellor A vibratory pest control device having a sonic resonator with more than one mode of vibration and a driving element coupled to the resonator to vibrate it alternately at different frequencies.... | 08/07/1979 |
| 4105992 | Animal attraction method and apparatus Rodents are attracted to a pre-selected location by generating ultrasonic signals having pre-determined frequencies, time durations and repetition rates which correspond to instinctual vocalization of rodents. A recording is made of the sounds generated b... | 08/08/1978 |
| 4097838 | Seismic rodent control device A generator vibrates low frequency sound vibrations and magnetic fields with superimposed high frequency noise which upsets the habits of rodents and most burrowing animals. The sounds are transmitted to the ground by the generator being connected to a pi... | 06/27/1978 |
| 3931865 | Mosquito repellant apparatus An electronic mosquito repellant sonically or ultra-sonically attracts male mosquitos. The presence of the male mosquitos repels the pregnant female mosquitos. The female mosquitos, as distinguished from the male mosquitos, are equipped with mandibles cap... | 01/13/1976 |
