Abstract: An animal collar system including an animal collar, a housing mounted to the animal collar and an electrical circuit. The electrical circuit is enclosed in the housing and a built-in-test circuit is electrically connected to the electrical circuit.

Abstract: A method of modifying the behavior of an animal including the steps of increasing a stimulation level of a stimulation device in stimulating contact with the animal, the stimulation level associated with one of a plurality of levels, the plurality of levels including a minimum level, applying a stimulation to the animal associated with the stimulation level, determining a compliant behavior of the animal and reducing the stimulation level to one of the plurality of levels between a current stimulation level and the minimum level dependent upon the determining step.

Abstract: A remote receiver unit is for use in an animal behavior modification system that applies an electrical shock to an animal. The remote receiver unit has an electrical shock device including two electrodes configured for contacting the animal, a source of alternating current voltage, and an electrical transformer with a primary coil and a secondary coil. The primary coil is electrically connected to the source of alternating current voltage. The secondary coil is electrically connected to at least one of the two electrodes. The transformer has an output impedance of less than 900 ohms. A receiver circuit is electrically connected to the shock device. The receiver circuit is configured for activating the shock device in response to a received signal.

Abstract: In a method of applying an electrical stimulus to an animal, at least one electrode is in contact with the animal and is fixedly and electrically coupled with a voltage detector circuit. A stimulus signal is carried by the at least one electrode. Using the voltage detector circuit, it is determined whether the stimulus signal exceeds a predetermined voltage level. An indicator signal, indicative of the determining step, is transmitted from the voltage detector circuit.

Abstract: A remote receiver unit is for use in an animal behavior modification system that applies an electrical shock to an animal. The remote receiver unit has an electrical shock device including two electrodes configured for contacting the animal, a source of alternating current voltage, and an electrical transformer with a primary coil and a secondary coil. The primary coil is electrically connected to the source of alternating current voltage. The secondary coil is electrically connected to at least one of the two electrodes. The transformer has an output impedance of less than 900 ohms. A receiver circuit is electrically connected to the shock device. The receiver circuit is configured for activating the shock device in response to a received signal.

Abstract: A remote receiver unit is for use in an animal behavior modification system that applies an electrical shock to an animal. The remote receiver unit has an electrical shock device including two electrodes configured for contacting the animal, a source of alternating current voltager and an electrical transformer with a primary coil and a secondary coil. The primary coil is electrically connected to the source of alternating current voltage. The secondary coil is electrically connected to at least one of the two electrodes. The transformer has an output impedance of less than 1000 ohms. A receiver circuit is electrically connected to the shock device. The receiver circuit is configured for activating the shock device in response to a received signal.

Abstract: In one aspect of the invention, an environmentally insensitive initiator, including: an electro-explosive device responsive to an electrical signal of unique voltage and frequency applied to the electro-explosive device, the unique voltage and frequency being such that are not otherwise present in a well completion operation. An example of voltage and frequency is 350V at 900 Hz. In another aspect, an initiator insertable in a housing insertable in a well casing, the initiator having a contact which is grounded when the initiator is uninstalled, to protect against unintended currents, but which becomes ungrounded by the act of inserting the initiator in the housing. In a further aspect, an initiator including a dual-function fuse.