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| Number | Title | Issue Date |
| 5435485 | Automatic purge system for gas engine heat pump A heat engine driven heat pump system including a coolant fluid circulation subsystem further includes an automatic purge system to provide purging of air gases and vapors during initial filling and subsequent on-line operation to eliminate trapped and ac... | 07/25/1995 |
| 5429179 | Gas engine driven heat pump system having integrated heat recovery and auxiliary components In a combustion engine driven refrigerant vapor compression heat pump system, an integrated heat exchanger is provided which recovers and uses waste heat from the combustion engine coolant and exhaust stream, further produces auxiliary heat when the heat ... | 07/04/1995 |
| 5399323 | Method for improving reducing potential of natural gas feed A means to increase the reducing potential of natural gas used in the reduction of sulfates such as gypsum. A reducing mixture of natural gas and air (or oxygen) is heated prior to reduction of the sulfate. For gypsum reduction, heating the reducing mixtu... | 03/21/1995 |
| 5387667 | Thermally-reversible isocyanate-based polymers Thermally-reversible polymer compositions are obtained by reacting compounds with isocyanate and labile-hydrogen functionality. High-performance characteristics are incorporated into the polymer by using aromatic polycarbonate, aromatic polyester, polyary... | 02/07/1995 |
| 5385408 | Rocker tip roller hydrodynamic bearing oil slots A hydrodynamic bearing for limited roller oscillation incorporates a pair of oil slots which clear debris from the roller/pin interface and provide oil to readily lubricate the entire load bearing surface of a pin. The preferred oil slots each extend leng... | 01/31/1995 |
| 5377380 | Simulated vehicle headlight wipers This invention is a simulated headlight wiper and is used as a novelty or amusement device. The wiper may be detachably mounted to the vehicle or, in another embodiment, it may be attached directly to the headlight by suitable means such as a double-sided... | 01/03/1995 |
| 5372347 | Tilt seat adaptor for vehicle on incline A seat leveling apparatus for levelling the seat on a vehicle when the vehicle turns onto an inclined surface which includes upper and lower members that pivot relative to each other on a longitudinal axis parallel to the path of the vehicle. Apparatus is... | 12/13/1994 |
| 5363673 | Simplified engine coolant system for gas engine heat pump A coolant fluid circulation subsystem for engine driven heat pump systems including a coolant fluid loop through the engine and a recouperator, and through a thermostatic control valve operable to convey and to modulate flow from a coolant reservoir durin... | 11/15/1994 |
| 5362962 | Method and apparatus for measuring pipeline corrosion An automatic corrosion measurement system and method enables rapid measurement and evaluation of corrosion on significant portions of straight and curved pipe sections and other surfaces from several square inches to several square feet, using a laser ins... | 11/08/1994 |
| 5342578 | Corrosion inhibition of ammonia-water absorption chillers A method of inhibiting corrosion in ammonia-water absorption machines that includes adding to an ammonia-water solution soluble silicon compounds. Examples of these silicon compounds include sodium silicate (Na2 SiO3), potassium sili... | 08/30/1994 |
| 5341727 | Positioning mechanism A gas-fired, double-sided griddle apparatus for high-volume commercial cooking comprises double-sided griddles, each having a lower platen having a horizontal lower cooking surface and an upper platen having an upper cooking surface; a positioning mechani... | 08/30/1994 |
| 5339654 | Heat transfer apparatus A refrigeration and heating system has been made in which improved efficiencies are obtained by placing helical concentric coils of at least two generators (80 and 81) and recuperators (86 and 95) on a common axis (232) with a heating unit (84) at the cen... | 08/23/1994 |
| 5326919 | Monomer recovery from polymeric materials A method is described for the recovery of high yields of monomers from waste and scrape polymeric materials with minimal amounts of char and tar. The process involves heating the polymer at a heating rate of at least 500° C./sec in a flow-through reactor... | 07/05/1994 |
| 5325990 | Container support A container support has two legs attached on opposite sides of a container with a third leg attached to one of the legs attached to the container. The third leg pivots to minimize its projection when carrying the container from place to place with the sup... | 07/05/1994 |
| 5314009 | Exhaust gas recuperator The cylindrical enclosure 12 of a recuperator 10 as in FIG. 2 contains an annular coaxial heat exchanger 50 full of cooling liquid 22 circulating therethrough. Exhaust gas from an internal combustion engine flows from an inlet end 32 through the heat exch... | 05/24/1994 |
| 5313034 | Thermoplastic welding A process for obtaining long, continuous, thermoplastic welds on large structures. A series of tabs are used in pairs and especially in alternating, overlapping pairs to obtain resistance heating of a strip material placed in the bond line. The resistance... | 05/17/1994 |
| 5305183 | Portable personal computer with passive backplane having a doublesided staggered connector array A portable personal computer that utilizes a combination of an open ended card cage and a passive backplane with a double-sided staggered array of connectors that allows for the horizontal placement of a large number of computer circuit boards in a low pr... | 04/19/1994 |
| 5287919 | Heat exchanger A gas-fired apparatus for high-volume commercial cooking comprises double-sided griddles, each having a lower platen with a horizontal top cooking surface and an upper platen with a bottom cooking surface. The upper platen of each griddle is moved into a ... | 02/22/1994 |
| 5252450 | Capped photochromic silver halides for incorporation into a plastic matrix A photochromic composition for incorporation into a light-transmitting polymer is described. Silver halide crystallites are capped with an organic capping group using multivalent metal ions integrated into the surface of the silver halide crystallite to p... | 10/12/1993 |
| 5249742 | Coolant circulation system for engine heat pump A coolant fluid circulation subsystem for engine driven heat pump systems including a coolant fluid loop through the engine and a recuperator, and through a thermostatic control valve operable to convey and to modulate flow from a coolant reservoir during... | 10/05/1993 |
| 5239039 | Polyarylimidazolidines with phenolic hydroxyl end groups Polyarylimidazolidines with a degree of polymerization of about one to twenty and having phenolic hydroxyl end groups and a novel three-step process for their preparation are described. In the first step of the process, an excess of hydrogen cyanide is re... | 08/24/1993 |
| 5230225 | Absorption refrigeration system burner and generator assembly An absorption refrigeration system generator assembly is provided with a centrally positioned, generally vertical boiling pot element having a lower portion and an upper portion, with an annular primary combustion chamber surrounding the boiling pot eleme... | 07/27/1993 |
| 5191206 | Distributed fiber optic sensor using clad material light backscattering A distributed fiber-optic sensor is obtained by using cladding that produces a change in the intensity of scattered light in the cladding of an optical fiber in response to a change in the environment of the cladding. The change in clad scattered light is... | 03/02/1993 |
| 5187021 | Coated and whiskered fibers for use in composite materials Diamond and ceramic whiskers 712 are grown on diamond, ceramic, or metal coated 714 fibers 710 (e.g. carbon, glass, ceramic or metal fibers) and used in composites 700. The whiskers 712 1) increase fiber-matrix bonding, 2) maintain fiber separation and 3)... | 02/16/1993 |
| 5180600 | Method for deep-fat frying food products Apparatus and methods are disclosed for cooking and indicating the doneness of food products immersed in a hot liquid cooking medium such as deep hot fat. An indicator circuit that cooperates with an acoustic detector produces a first control signal indic... | 01/19/1993 |
| 5170722 | Pallet assembly A pallet assembly is disclosed that consists of two sets of interlocking runners. The first set of runners has at least one opening capable of receiving a plurality of second runners. The second runners have slots that mate with the upper and lower member... | 12/15/1992 |
| 5169164 | Cooler tote A cooler tote that is easily attached and removed from a picnic cooler permitting easy wheeling of the cooler to its destination and thereby eliminating the need for carrying. The tote consists of a wheeled support to support the cooler and to which are a... | 12/08/1992 |
| 5139231 | Lumber jack A jack for forcing adjoining boards or sheathing into close proximity or contact with one another and holding them in such a position while they are fastened to supporting joists or rafters. The device consists of a housing that is adapted to engage the j... | 08/18/1992 |
| 5136117 | Monomeric recovery from polymeric materials A method is described for the recovery of high yields of monomers from waste and scrape polymeric materials with minimal amounts of char and tar. The process involves pyrolysis in a circulating fluid bed (CFB). The polymer is heated to a temperature of ab... | 08/04/1992 |
| 5120063 | Heater register golf cup A practice golf putting cup is disclosed that eliminates the inclined ramps and ball trapping leaves found in the prior art by taking advantage of in-floor air ducts found in many homes. The invention consists of a cover for the air duct passage and has a... | 06/09/1992 |
| 5099651 | Gas engine driven heat pump method A heat pump system selectively operable in cooling and heating modes of operation and having an internal combustion engine prime mover which produces refrigerant vapor compression, and which produces excess heat for rejection, is provided with a first hea... | 03/31/1992 |
| 5097819 | Dispersed bubble condensation A direct contact condensing heat-exchanger is provided with a water heat transfer medium in which combustion product gases are dispersed in finely divided bubble form against a relatively low hydrostatic pressure differential for efficient sensible heat a... | 03/24/1992 |
| 5097010 | Thermally-reversible isocyanate polymers Thermally-reversible polymer compositions are obtained by reacting compounds with isocyanate and labile-hydrogen functionality. High-performance characteristics are incorporated into the polymer by using polyimide, aromatic polycarbonate, aromatic polyest... | 03/17/1992 |
| 5081851 | Absorption refrigeration system purge subsystem An absorption refrigeration system having an absorber, a generator, and a refrigeration solution pump which flows relatively dilute refrigeration solution received from the absorber to the generator includes a novel purge subsystem which purges un-wanted,... | 01/21/1992 |
| 5078180 | Automatically operated gate valve for recreational vehicles This invention is a hydraulic device for operating a gate valve in the drainage line of a recreational vehicle. The device consists of a support plate mounted to the gate valve or drainage line. A hydraulic cylinder with a hydraulic rod is pivotally mount... | 01/07/1992 |
| 5070703 | Hybrid air conditioning system integration A hybrid air-conditioning system having an absorption refrigeration subsystem for sensible heat loads and a cooperating liquid desiccant dehumidification subsystem for latent heat loads incorporates additional apparatus for effecting the efficient transfe... | 12/10/1991 |
| 5067439 | Aquarium hydro hi-rise and crossover bridge assembly A system is provided which facilitates the filling and operation of a crossover bridge (30) for aquarium tanks (12, 40). A pump (58) is combined with a plurality of end sealing devices (56, 72) and a closeable aperture (38) in an intermediate vacuum porti... | 11/26/1991 |
| 5067330 | Heat transfer apparatus for heat pumps A refrigeration and heating system has been made in which improved efficiencies are obtained by placing helical concentric coils of at least two generators and recuperators on a common axis with a heating unit at the center and allowing the hot combustion... | 11/26/1991 |
| 5067719 | Spin communicating ball This invention relates to a spin communicating ball. Communication is achieved by coloring various sections of the surface of the ball with different colors that mix and form new colors when the ball is spun. Preferably, the colored sections are three mut... | 11/26/1991 |
| 5064108 | Load-bearing belt A specially designed, two section, adjustable belt using an adjustable connection between the sections at the back of the user is described. The adjustable connection allows the weight of a load to be positioned over the hips of a user thereby reducing ba... | 11/12/1991 |
