Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 5413808 | Method for long range preservation treatment by liquid-air injection of infrastructure monuments and other porous and embedded steel structures A method for preserving porous structures, including masonry structures having embedded structural or reinforcing steel rods, applies liquid preservative material to an exposed surface of the structure and injects the material into the structure using the... | 05/09/1995 |
| 5402945 | Method for spraying plants and apparatus for its practice An improved method for row crop spraying whereby a solution is atomized by high speed air, imparted with an electrical charge, slowed with more high speed air, and deposited over crops including a nozzle for practicing such a technique. Such charged dropl... | 04/04/1995 |
| 5397058 | Low pressure fumeless spray gun A low pressure fumeless spray gun comprising an atomizer (3) with a central nozzle (8) having a sized orifice concentric with the feed duct (9) for the liquid to be atomized, and a sleeve (14) surrounding the nozzle (8) and comprising at least a channel (... | 03/14/1995 |
| 5395054 | Fluid and air hose system for hand held paint spray gun Light weight fluid and compressed air supply hoses are attached to a hand held paint spray gun. The heavier air hose is attached through a swivel fitting to permit the gun to rotate relative to the air hose. One or more generally e-shaped clips secured al... | 03/07/1995 |
| 5372309 | Airless nozzle using ambient air for improved atomization An improvement in reduction of particle size of painting and coating particles is achieved by providing a tapered channel(s) in the cylindrical wall radially of the spray apparatus' nozzle head, which is a wall adjacent the nozzle outlet slit. Using the "... | 12/13/1994 |
| 5370315 | Spray gun for aggregates A valve for dispensing liquids having a high content of particulate material through a spray gun operates between open and closed positions which ensures continuous recirculation of at least a portion of the spray material. The spray gun has an inlet nipp... | 12/06/1994 |
| 5368233 | Spray disk for close centerline spacing A nozzle for a hot melt adhesive spray head which mounts directly to a nozzle mounting surface. To permit a series of spray nozzles to be mounted closely together, the nozzle has a threaded stud integral with and extending from the rear side of the nozzle... | 11/29/1994 |
| 5344078 | Nozzle assembly for HVLP spray gun An improved nozzle assembly for an HVLP paint spray gun. The nozzle assembly includes at least an air cap and a fluid tip, and preferably also includes a baffle for uniformly distributing air flow through the nozzle assembly. The fluid tip has a conical f... | 09/06/1994 |
| 5312042 | Spray apparatus comprising a vortex tube A system for spraying a coating onto a substrate employing a vortex tube to supply warm air to a spray gun is disclosed. The system allows precise control of air temperature.... | 05/17/1994 |
| 5284299 | Pressure compensated HVLP spray gun HVLP spray gun capable of operating from a source of high pressure air. Compressed air is delivered to the gun through a relatively small diameter air hose. A pressure compensated control valve is mounted in the spray gun to reduce the air pressure delive... | 02/08/1994 |
| 5279461 | Spray gun A spray gun using high volume, low pressure air includes a liquid nozzle with a conical face and a coaxial liquid outlet therein and a housing having an air chamber of greater diameter than a diameter of said liquid nozzle, for providing atomizing air to ... | 01/18/1994 |
| 5275336 | Wire thermal spray gun and method In an angular gas cap on a wire thermal spray gun, a forward channel extends from a rearward channel at an oblique angle thereto so as to have a lateral directional component. The rearward channel at the nozzle has a channel axis parallel to the central a... | 01/04/1994 |
| 5271562 | Dual fluid atomizer exit orifice shield gas supply housing An atomizer used in boilers, furnaces, downstream contaminant removal processes and the like, to atomize the oil/liquid/slurry product being sprayed into such enclosures. This particular atomizer is configured with individual openings around each exit ori... | 12/21/1993 |
| 5271564 | Spray gun extension An spray gun extension used in the application of liquids such as paints and other coatings, cleaning solutions, solvents, blasting agents, solvents, sealants, lubricants and pesticides in high volume low pressure spraying. The extension allow the applica... | 12/21/1993 |
| 5265801 | Vortex tube used to supply LPHV air to spray apparatus A method of spraying a coating onto a substrate using low pressure, high volume air is disclosed. More specifically, the step of using a vortex tube with valves at both the hot and cold air discharge ends to supply the low pressure, high volume air to a s... | 11/30/1993 |
| 5240181 | High volume, low pressure paint spraying system A high volume, low pressure air supply for a paint spraying system includes a primary, high pressure reservoir connected to a secondary reservoir maintained at a pressure substantially lower than the primary reservoir. The secondary reservoir is a "dedica... | 08/31/1993 |
| 5209405 | Baffle for HVLP paint spray gun A replaceable baffle for dropping high pressure air to low pressure air for atomization and for pattern shaping in a high volume low pressure (HVLP) air paint spray gun. The baffle has a first plurality of orifices for distributing and dropping the air pr... | 05/11/1993 |
| 5199644 | HVLP paint spray gun A spray gun including a gun body having an air inlet channel, an air expansion chamber and an air distribution chamber. The air inlet channel and the air expansion chamber are interconnected by an orifice for achieving sonic velocities and reducing the pr... | 04/06/1993 |
| 5186389 | Spray tube ultrasonic washing apparatus Disclosed is a spray type ultrasonic washing apparatus using a coaxial nozzle structure which is composed of inner and outer hollow frustums for supplying deaerated washing liquid in the annular passage delimited by the outer and inner frustums and supply... | 02/16/1993 |
| 5170941 | Premixing-type spray gun The present invention is a premixing-type spray gun which mixes a paint and compressed air inside the atomizing head and blows out the mixture as atomized from the spray hole. The inner and outer surfaces of the center hole in the atomizing head of the sp... | 12/15/1992 |
| 5170943 | High velocity pneumatic device A high velocity pneumatic device having particular use for excavating or dislodging soil. The device includes a body or housing having a passage that connects a source of air under pressure, such as a compressor, to an elongated discharge tube. A valve me... | 12/15/1992 |
| 5169070 | Air directing ring for fluid spray gun air cap A ring in the path of the low pressure pressurized air that flows to the air cap chamber of a fluid spray gun for atomizing the fluid has a series of circumferentially spaced air passageways angled to direct the pressurized air toward the centrally locate... | 12/08/1992 |
| 5165604 | Air supply and control assembly for an automatic spray gun An air supply and control assembly for use with a spray gun comprises an assembly to couple a first source of pressurized air which controls the needle valve of a spray gun to a pilot valve connected to a second source of pressurized air to control delive... | 11/24/1992 |
| 5163620 | Nozzle for superconducting fiber production A nozzle apparatus for producing flexible fibers of superconducting material receives melted material from a crucible for containing a charge of the superconducting material. The material is melted in the crucible and falls in a stream through a bottom ho... | 11/17/1992 |
| 5154354 | Device for the production of a protective gas mantle in plasma spraying A protective gas nozzle (6) and a gas feed channel (10) for the protective gas is arranged concentric around a spray jet nozzle (5). The protective gas nozzle (6) has a core hollow space (26) with a curved closing surface (9) at the rear end (8) of the no... | 10/13/1992 |
| 5152460 | Spray gun nozzle head A spray gun nozzle head for atomizing a liquid using a flowing pressurized gas. The nozzle head includes a central nozzle having an orifice for supplying the liquid to be atomized. A cap having a funnel shaped chamber is mountable over the nozzle to defin... | 10/06/1992 |
| 5141161 | HVLP spray gun A spray gun designed for high volume low pressure (HVLP) use is provided with a simple yet effective mechanism for providing feathering as well as allowing for extended needle and nozzle life. A poppet member is spring biased and moves some distance to fi... | 08/25/1992 |
| 5114075 | Spraying system for treating a flue gas This invention relates to a spraying system for spraying a liquid, such as water, to be used in a plant for treating flue gases, provided with at least a liquid supply pipe, a spray body, and a spray head, which is characterised in that the spray body (5)... | 05/19/1992 |
| 5085373 | Apparatus for coating workpieces electrostatically Particles of conductive coating material, such as the water-enamel type paint, are sprayed from a grounded bell-atomizer (2) and are electrostatically charged in the corona-discharge area by outer electrodes (10) which are inserted into a holding-arrangem... | 02/04/1992 |
| 5074592 | Vehicle spray reducing apparatus Spray reducing apparatus (14) for a vehicle comprises a duct (16) adapted to be disposed in front of a vehicle wheel (10) and arranged to collect air in a forwardly directed mouth (18). The air is directed through an exit (20) towards the ground in front ... | 12/24/1991 |
| 5072883 | Full cone spray nozzle with external air atomization A full cone spray nozzle assembly having a body with a centrally disposed, axially extending chamber through which a liquid to be discharged will flow, and a frusto-conically formed end cap having a circular, centrally located discharge opening. The end c... | 12/17/1991 |
| 5071074 | Angled spray gun A spray gun is provided with an angled spray head for use on painting robots. The spray head is designed for attachment to a conventional spray gun and utilizes an angled retaining ring in conjunction with a conventional retaining ring, a conventional spr... | 12/10/1991 |
| 5067656 | Air volume booster for sprayers An air volume booster for sprayers which have a turbine, which when connected to a compressed air source, provide a high volume, low pressure output to a spray gun connected to the sprayer. The booster comprises a supercharger having a shallow cylindrical... | 11/26/1991 |
| 5062572 | Spray shield For use with agricultural sprayers, a unique spray shield is disclosed. The shields are mounted in pairs along the wet spray boom fore and aft in approximately the same plane, thereby shielding the nozzles of the sprayer. The shields are elongate and each... | 11/05/1991 |
| 5058807 | High volume, low pressure spraying system A high volume, low pressure air system for atomizing a fluid, such as paint, includes, among other things, a variable jet venturi induction pump which generates low pressure air for powering one or more atomizing devices, such as spray guns, with the inta... | 10/22/1991 |
| 5044557 | High volume, low pressure spraying system A high volume, low pressure air system for atomizing a fluid, such as paint, includes, among other things, a variable jet venturi induction pump located within a sealed low pressure air tank for holding a relatively large volume of low pressure air genera... | 09/03/1991 |
| 5014916 | Angular gas cap for thermal spray gun A gas cap for a thermal spray gun has a passage therethrough including an entrance channel, an exit channel, and an intermediate channel connecting between the entrance and exit channels. The entrance channel is cylindrical on an entrance axis, and the ex... | 05/14/1991 |
| 5014915 | Apparatus for the flame spraying of powder materials by means of an autogenous flame An apparatus for the flame spraying of powder materials by means of an autogenous flame comprising a nozzle carrier which has a burner nozzle and which projects into a guide opening of a preferably tubular attachment body provided with coolant guide means... | 05/14/1991 |
| 5002227 | Plant protection discharge apparatus A discharge apparatus (1f) for treatment media has cabin-like discharge units (3f) bounding in each case a passage (4f), which are in each case provided with at least one discharge device (10f) for the treatment medium, at least one air-carrying back suct... | 03/26/1991 |
| 4995333 | Sprayed adhesive system for applying a continuous filament of theroplastic material and imparting a swirling motion thereto A distinctive method and apparatus for forming a substantially continuous filament of a thermoplastic work material and for imparting a swirling motion thereto comprises a body member which has a work material supply passage and a gas supply passage forme... | 02/26/1991 |
