Matches 101 - 131 out of 131 < 1 2 3
Match Document Document Title
5134370 Apparatus for the detection of magnetic tags  
An apparatus detects a magnetic tag implanted in an organism as detector is moved past the organism by detecting a magnetic field difference between two positions. Prior to examination of a...
5063373 Fishing rod holder with fish alert  
A fishing rod holder that incorporates a sensing device to monitor the tension on the fishing line. When the tension increases, this device triggers either a sound or a visual alarm, according to...
5061918 Sound emitting device for behavior modification  
A device for modifying the undesirable behavior of animals is disclosed which utilizes integrated circuitry to achieve a small size and light weight. Discrimination circuitry analyzes audible...
5009192 Animal deterrent apparatus  
An apparatus for deterring animals from intruding into gardens, fields, yards, etc. has at least one sprinkler which produces an initial sudden jet of water to frighten or startle an animal. The...
4979153 Mounting apparatus for the sonic transducer of a fish-finder  
A mounting apparatus for the sonic transducer of a directional Doppler fish-finder includes an elongate tubular control arm and a clamp assembly for attaching the control arm to the side of a boat...
4965552 Electronic animal repellant apparatus  
An electronic animal repellant apparatus includes a microphone for detecting environmental sound, a detection circuit for detecting the presence of a particular species of animal in the vicinity of...
4937555 Piezoelectric apparatus and process for detection of insect infestation in an agricultural commodity  
Detection of insect infestation in an agricultural commodity is provided by piezoelectric means for generating electricity in response to vibration only of a frequency above about 500 Hertz, in...
4904985 Mole detector apparatus  
A framework is positioned overlying a mole burrow or passageway and supports a pivotally mounted, non-conductive plate carrying a conductor to complete a circuit to actuate a remote alarm during...
4884064 Intruder detection and control apparatus  
A method of and apparatus for detecting free-ranging pests, for example mice, without providing an attractant material. The presence of a pest is sensed by at least one of a plurality of sensors, a...
4862145 Pest monitoring system  
A pest monitoring apparatus includes a plurality of detectors distributed over an area under surveillance and each linked to an indicator for indicating whether or not anything has been detected by...
4798175 Electronic identification system  
An electronic identification system for identifying an animal moving through a portal structure is disclosed. A transponder worn on a rope or chain around the neck of the animal is energized by a...
4737774 Magnet based activity sensor  
An activity sensor which provides an indication of motion caused by changes in acceleration of a person or animal, and wherein such changes of motion are sensed by a movable magnet which is biased...
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...
4538249 Ultrasonic doppler fish detector  
A directional Doppler fish movement detector uses a relatively low ultrasonic frequency to minimize particulate scattering and absorption losses in turbid lakes and streams. The low ultrasonic...
4528554 Signal light for fishing rods and tip ups  
A signalling device that can be attached to a fishing rod and an ice fishing tip up, to alert the angler to the strike or biting of a fish, by means of an oscilating luminous signal. A cylindrical...
4506257 Portable all purpose electrical alarm  
A simple and rugged alarm which is versatile in application includes a battery connected through first and second parallel switches to a light and buzzer alarm. The first switch comprises a first...
4475102 Bird dispersal apparatus  
An apparatus primarily for bird dispersal purposes at an airport has a remote control means provided for controlling operation of one or more sound emitting devices adapted to cause a detonation or...
4399821 Free moving animal physiological monitoring and identification system and method  
An animal physiological monitoring and identification system and method for carrying out same, wherein each animal within the system is provided with an implanted device equipped with means for...
4398185 Simple and rugged fishing alarm  
A fishing alarm which is simple, economical to fabricate, and rugged includes an injection molded housing with a battery and alarms mounted in the housing. The battery, alarm, electrical...
4266217 Signal device for fishing rods  
A signalling device mounts on a fishing rod to signal a hooked fish. Two relatively movable contacts are axially aligned in the direction of the rod's length. An axial bore through the forward-most...
4188622 Garbage can alarm  
A strap assembly constructed of shape retentive but deformable and resilient dielectric material. The strap assembly includes longitudinally spaced transversely extending corrugations and is...
4087791 Electromagnetically responsive device and system for detecting the same  
A passive electromagnetically responsive device comprising a miniature tuned inductive-capacitive circuit. The device is preferably detected by stimulating oscillations at the resonant frequency of...
4065753 Electromagnetically responsive projectile and system for detecting same  
A projectile is provided having contained therein a passive electromagnetically responsive device such as a tuned inductive-capacitive circuit. The circuit is preferably detected by stimulating...
4050308 Electronic fish locator  
Apparatus for determining the depth of certain temperature layers or strata in ponds, lakes, etc. The disclosed apparatus includes a thermistor, an electrical wire or cable attached to the...
4038639 Bird perch alarm  
A bird perch alarm characterized by a perch assembly responsive to the weight of a bird, the movement thereof completing electrical circuitry and causing an audible signal. Resilient means form a...
4028687 Method and apparatus for delivery alarm for livestock animals  
An alarm apparatus for the delivery of livestock animals is inserted in the birth canal of a pregnant livestock animal such as a cow or a pig whose delivery is expected to be close at hand, so that...
3868668 SIGNAL LIGHT FOR FISHING  
A signal light having a casing and a bulb similar to a penlight is adapted to be fastened to a rod holder or directly to a rod. A switch assembly has approximately the dimensions of a penlight cell...
3835462 FISHING ROD BEEPER  
A type of signaling device for use with a fishing pole and line, sounds a signal whenever there is a catch on the hook, which provides a pull on the fishing cord or on the fishing pole. In one...
3798630 FISHING LINE MOTION SENSING ALARM  
A spring-loaded, clothespin-type clip is provided with a string clutching member movable by string movement to operate a switch mounted on the clip. The clip is securable to a mounting post on a...
3656141 BIRD-SCATTERING DEVICE  
A bird-scattering device operative in response to the weight of the bird alighting thereon to provide an audible alarm effective to frighten birds in the vicinity thereof. The device includes a...
3618068 COMBINATION FISHING POLE HOLDER AND SIGNALLING DEVICE  
A fishing pole holder and alarm comprising a stake adapted to be inserted in the ground, a transverse pole support adjustably mounted on the stake, a switch carried by the outer end of the support,...
Matches 101 - 131 out of 131 < 1 2 3