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Pet Toilet-Like Water Disk and Food Storage
One pet-friendly inventor patented "a device for watering pets, e.g., a dog or cat." The device, he helpfully noted, "has the general shape of a toilet."
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| Number | Title | Issue Date |
| 4364386 | Apparatus for converting a pump to a controller Apparatus controls the maximum pressure of the fluid which can flow through a pump. The apparatus includes a disposable unit with an inlet for receiving fluid from a source, an outlet for transferring the fluid to a patient and a chamber communicating bet... | 12/21/1982 |
| 4360247 | Evanescent fiber optic pressure sensor apparatus An apparatus is disclosed for optically sensing pressure using evanescent wave coupling between two fiber optics. A support base with a channel holds the two waveguides, one on top of the other, with the portion of the waveguide having the cladding materi... | 11/23/1982 |
| 4358960 | Differential fiber optic proximity sensor Proximity sensor for determining the distance between a reflective surface and the sensor utilizes two output light guides positioned with the receiving end of one guide closer to the reflective surface than that of the other. When the surface is close to... | 11/16/1982 |
| 4355910 | Method and apparatus for an optical sensor utilizing semiconductor filters A method and resulting apparatus for implementing a unique optical sensor that is adapted to be interfaced with a low cost, compact fiber-optic transmission system to provide an accurate indication of a sensed physical parameter (e.g. temperature) of a re... | 10/26/1982 |
| 4342907 | Optical sensing apparatus and method A sensor for measuring stress, temperature, pressure, sound, etc. comprising an optical waveguide, preferably an optical fiber waveguide, a light source which injects light into one end of the waveguide, a deformer contacting and deforming the waveguide t... | 08/03/1982 |
| 4342230 | Pressure sensor and sensing method A pressure sensor and sensing method, wherein the sensor comprises a pressure responsive element movable corresponding to a pressure to be measured and a means for detecting movement of the pressure responsive element. The movement detecting element compr... | 08/03/1982 |
| 4322979 | Optical device for measuring slight differences of pressure by means of a change in light intensity An optical device for measuring slight pressure differences by means of a light intensity change characterized by a membrane extending across a recess of a housing part to form a first chamber of a first volume which is isolated from a second chamber on t... | 04/06/1982 |
| 4322978 | Optical device for measuring slight pressure differences by means of light intensity changes An optical device for measuring both slight positive and negative pressure differences by means of a light intensity change characterized by a gradient lens having a first and second end face being mounted in a housing part with a second end face spaced f... | 04/06/1982 |
| 4321831 | Digitally compatible optical pressure measurement An apparatus for pressure measurement employs fiber optics to transport a broadband beam light to and from a remote electrically passive sensing head. In the sensing head, a linearly polarized beam is phase shifted in a birefringent plate, then passed thr... | 03/30/1982 |
| 4300813 | Fiber optic transducer and method of manufacture therefor An optical transducer for converting pressure variations to variations in amplitude of an optical signal. A first optical transmission line is positioned above a base in a manner to maintain its end face stationary while a second optical transmission line... | 11/17/1981 |
| 4300548 | System for detecting position of gauge pointer A system is disclosed for detecting the position of the pointer of a gauge. The system includes a stationary light source which is positioned adjacent the pointer. A lens receives the light from the light source and redirects the light in at least one elo... | 11/17/1981 |
| 4289963 | Control device and method of making the same A control device having a housing provided with an actuator chamber separated from a pressure differential chamber by a wall having an opening therethrough receiving an axially movable actuator pin that transmits axial movement of a movable part in the pr... | 09/15/1981 |
| 4283114 | Fiber optic light valve A mechanically actuated, piezoelectrically powered, fiber optic connected ght valve (shutter) utilized as a sensor to detect mechanical motion (pressure) or displacement. A piezoelectric element responds to pressure to generate an electrical signal which ... | 08/11/1981 |
| 4276776 | Temperature/pressure transducer A temperature or pressure gauge capable of providing a magnified output indication of a respective sensed temperature or pressure of a fluid. Overlapping surfaces are movable relative to one another in response to sensed changes in temperature or pressure... | 07/07/1981 |
| 4275393 | Method and apparatus for sensing pressure A pressure sensing device has a light source, and an optical sensor for externally sensing a predetermined change in the pressure within a sealed system which has a conventional gauge. Illumination from the light source is reflected off of the gauge dial ... | 06/23/1981 |
| 4269069 | Pressure sensor, especially for intake air suction pressure In order to provide immunity against vibrations, a pressure sensor for detecting the prevailing manifold suction pressure in an internal combustion engine, for example, has a movable chamber which responds to the varying pressure and thereby changes the d... | 05/26/1981 |
| 4210029 | Differential fiber optic differential pressure sensor A differential sensor unit precisely monitors ambient pressure within a confined space, such as blood pressure or intracranial pressure of a human patient, utilizing fiber optic light guides. Three light guides pass within a pneumatic line into one end of... | 07/01/1980 |
| 4160600 | Pressure-responsive apparatus A pressure transducer has a capsule having two chambers separated from one another by a diaphragm. The capsule is made entirely of a glass-ceramics material, such as, lithium alumino silicate. One of the chambers is sealed and has a lens with a curved sur... | 07/10/1979 |
| 4158310 | Optical pressure transducer of randomly distributed fiber optics An optical pressure transducer utilizing a deformable diaphragm having a reflective surface in which a fiber optic bundle having at least 100 optical fibers is randomly divided at one end into two bundles consisting of a light source bundle, the end of wh... | 06/19/1979 |
| 4147431 | Apparatus and method for measuring pressures and indicating leaks with optical analysis A partial pressure gauge utilizes an efficient electron collision excitation source yielding de-excitation radiation characteristic of residual gases. The intensity of a given spectral line is proportional to the partial pressure of the gas having such sp... | 04/03/1979 |
| 4078432 | Fibre optic pressure sensor A fibre optic pressure sensor which includes at least two lengths of optical fibre each one of which is secured to a surface of a separate one of a number of spaced-apart member, at least one of which is resilient, the optical fibres being situated in the... | 03/14/1978 |
| 3950987 | Piezo-optic measuring transducer and accelerometer, pressure gauge, dynamometer, and thermometer based thereon A piezo-optic measuring transducer is disclosed herein and an accelerometer, a pressure gauge, a dynamometer, and a thermometer based thereon. The piezo-optic measuring transducer comprises two polarization-optical channels. Each of these channels include... | 04/20/1976 |
