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A vest or belt is integrally formed with tubular, pet receiving passageways which extend around the wearer's body and terminate in pocket-like chambers for feeding and retrieval.
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| Number | Title | Issue Date |
| 7355475 | Output circuit of vacuum-tube amplifier An output circuit of a vacuum-tube amplifier is disclosed. An output circuit of a conventional vacuum-tube amplifier has shortcomings that a front end amplification unit uses a coupling condenser or a transformer to output an AC signal to an output node, a bias volt... | 04/08/2008 |
| 7348845 | System and method for employing variable magnetic flux bias in an amplifier A system and method for employing variable magnetic flux bias in an amplifier. The amplifier system comprises an output transformer and a magnetic sensor configured to sense a first magnetic flux of the output transformer. The magnetic sensor generates a flux signal... | 03/25/2008 |
| 5528630 | Coupler for communication systems which utilize more than one frequency band A signal coupler includes a transformer having a primary and a secondary winding. Each transformer winding has a pair of associated winding terminals and is also split at an intermediate winding position to form a pair of supplemental winding terminals. C... | 06/18/1996 |
| 5422599 | Single-ended, transformer coupled audio amplifiers A single ended audio amplifier having at least two primary windings, not necessarily matched, in the primary of an output matching transformer: one for the amplifier final stage; and another winding to produce in the same core a magnetizing force equal an... | 06/06/1995 |
| 5357210 | Transconductance amplifier circuit A transconductance amplifier circuit employs the known combination of a transconductance amplifier and a current comparator (with or without a ratio extender, preferably in the form of a two-stage current transformer) to compare the output current from th... | 10/18/1994 |
| 5247264 | Combining circuit for Class-E RF power amplifiers A combining circuit for Class-E RF power amplifiers includes a transformer for each power amplifier to be combined, the respective secondaries of the transformers being connected in series to the RF load of the system. Each of the transformers further has... | 09/21/1993 |
| 4857870 | Method of manufacturing a surface wave dispersive filter and a filter manufactured in accordance with this method The invention provides a method of producing surface wave dispersive filters of RAC type, in which, in an RAC of known type, one of the input or output transducers is replaced by a transducer forming a surface wave filter and whose transfer function allow... | 08/15/1989 |
| 4829273 | Surface acoustic wave filter A frequency characteristic of a surface acoustic wave filter having at least a first transducer and a second transducer is determined by a product of a frequency amplitude characteristic of the first transducer and that of the second transducer so that th... | 05/09/1989 |
| 4453131 | Transformer coupled amplifier circuit A transformer coupled amplifier circuit that eliminates transformer induced non-linearities by way of a dual feedback path without sacrificing any of the inherent attributes of general transformer coupled amplifiers.... | 06/05/1984 |
| 4249537 | Current controlled muscle stimulator An apparatus for stimulating and controlling the contraction of muscles includes conductive electrodes for contacting spaced-apart locations on the body between which are the muscles to be exercised. The electrodes are connected to a signal supply circuit... | 02/10/1981 |
| 4196397 | Synchro power buffer amplifier A synchro buffer amplifier is provided which uses two matched amplifiers respectively connected to the primary windings of two transformers. Two input leads are respectively connected to the inputs of the two amplifiers and a third input lead is grounded.... | 04/01/1980 |
