Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7291194 | Intermittent mixer with low pressure drop A thermal mixer reduces the temperature of flue gas supplied to a fabric filter. Two spray dry absorbers are operable to cool flue gas. A housing of the mixer has first and second inlet passages for gas from the absorbers, an outlet passage for gas to the fabric fil... | 11/06/2007 |
| 7240689 | Multiple component mixing head The invention relates to a mixing head and to a method of mixing at least one polyol component and at least one isocyanate component and where appropriate additives, to form a polyurethane reaction mixture. ... | 07/10/2007 |
| 6946011 | Intermittent mixer with low pressure drop A thermal mixer reduces the temperature of flue gas supplied to a fabric filter. Two spray dry absorbers are operable to cool flue gas. A housing of the mixer has first and second inlet passages for gas from the absorbers, an outlet passage for gas to the fabric fil... | 09/20/2005 |
| 6857443 | Electronic gas blender and gas flow control mechanism therefor A gas flow control mechanism for a gas blender comprising: a voltage sensitive orifice defining a passage for each gas to be controlled and having an inlet port in fluid communication with a gas source and an outlet port in fluid communication with a plenum for mixi... | 02/22/2005 |
| 6328222 | Pulsed air assist valve module A fuel injector for use in a internal combustion engine is disclosed. The fuel injector includes a body having a discharge end and a longitudinal axis extending therethrough, and an electromagnetic coil located within the body. The fuel injector further i... | 12/11/2001 |
| 6059880 | Coating apparatus A coating apparatus according to the invention comprises a spin chuck for holding a substrate, resist solution tanks which contain a primary resist solution, a thinner tank which contains thinner, a confluence valve communicating with the thinner tank and... | 05/09/2000 |
| 5988532 | Valve nozzle A valve nozzle for introducing a flowable liquid into a mixing chamber through which flows a gas includes a nozzle head having defined therein the mixing chamber and having a gas delivery conduit which communicates with the mixing chamber, the mixing cham... | 11/23/1999 |
| 5878771 | Precision gas blender Apparatus and methods for precision batch or continuous flow blending of gases are described. Pulsatile precision metering valves having substantially zero dead space are employed to introduce gases to a mixing chamber or manifold in predictable uniform q... | 03/09/1999 |
| 5540251 | Precision gas blender Apparatus and methods for precision batch or continuous flow blending of gases are described. Pulsatile precision metering valves having substantially zero dead space are employed to introduce gases to a mixing chamber or manifold in predictable uniform q... | 07/30/1996 |
| 5193749 | Fuel injection valve A fuel injection valve has only one set of coil and armature to control both of the amount of fuel and the injection of fuel from the injection nozzle.... | 03/16/1993 |
| 5113903 | Steam converting valve with spindle actuation A steam converting valve having spindle actuation includes a main valve a main seat and a main throttle body cooperating with the main valve seat for controlling a main steam flow. A common spindle actuator supplies thrust forces. A main spindle is associ... | 05/19/1992 |
| 5104046 | Fuel injection having a single solenoid A fuel injector includes a measuring valve, a movable valve seat opened or closed by the measuring valve, a bobbin having a coil, an armature loosely fitted in one end of a through hole of the bobbin, a core inserted into the other end of the through hole... | 04/14/1992 |
| 4955544 | Dosage gun A dosage gun includes a housing having a longitudinal bore therein which terminates at one end in an emission nozzle and pressure tanks which hold components of the dosage material. A dosage device is held in the bore and is designed as a nozzle needle fo... | 09/11/1990 |
| 4921162 | Electrically controlled fluid mixing fixture, especially for mixing hot and cold water In the fluid mixing fixture, a displacement body and a tubular shell, which coaxially encloses the displacement body, are arranged at an inflow element. A temperature measuring element, such as a nickel wire which is covered by a plastic jacket, is wound ... | 05/01/1990 |
| 4907620 | Proportioner pumping system A pumping system is described for pumping a first fluid (e.g., water) and selectively adding a second fluid (e.g., fire retardant chemical, fertilizer, pesticide, etc.) to the first fluid. The system includes a pump connected to a discharge manifold havin... | 03/13/1990 |
| 4854348 | Single cylinder type switching valve for mixing hot and cold waters There is disclosed a single cylinder type switching valve for mixing hot and cold waters for exhausting, stopping or mixing hot and cold waters to be used for a mixture cock for hot and cold waters, having inlets for hot and cold waters formed as plane se... | 08/08/1989 |
| 4838703 | Injection impeller for agricultural chemicals An apparatus for the injection of liquid additives, such as fertilizers and insecticides, into irrigation sprinkler systems for even dispersal within the least distance of conduit pipe from the point of injection is presented. Said injection is accomplish... | 06/13/1989 |
| 4784180 | Sanitary mixing valve assembly The invention comprises a mixing valve assembly with a cold and hot water inlet, a mixing chamber, and a mixed water outlet, wherein the mixed water temperature is adjustable by rotation of the actuator, and wherein a constant water flow can be set by axi... | 11/15/1988 |
| 4718456 | Steam conditioning valve A valve which conditions steam from a relatively high pressure source, by simultaneously reducing the steam pressure and temperature to the level desired for a particular steam utilizing application. The steam conditioning valve allows the amount of steam... | 01/12/1988 |
| 4714090 | Mixing apparatus for gases An apparatus 1 for mixing first and second gases includes first and second valves 2, 3 each having a stem 14 the axial movement of which controls the flow of the gases through their respective valves. Each valve stem has one end engaging a control surface... | 12/22/1987 |
| 4575007 | Mixing control for water and cleaning fluid An in-line switch and mixer control including a first restriction adjacent the outlet of a mixing device having a cleaning fluid and water inlet for controlling the flow rate from the mixer and a second restriction connected to the water inlet for varying... | 03/11/1986 |
| 4570856 | Liquid and detergent mixing chamber and valves A fluid circuit for a cleaning device having a mixture with separate water and cleaning fluid inlets and fittings interconnecting a pressurized source of water and a pressurized source of cleaning fluid responsive to change the mixing ratio of cleaning fl... | 02/18/1986 |
| 4505865 | Steam-pressure reduction valve A valve housing in the form of a straight- or bent-passage valve accepts in the the valve seat between its steam intake and steam outlet a choking device in the form of a perforated bushing into which a cold-water pipe with jacket-side cold-water exits pr... | 03/19/1985 |
| 4474214 | Beverage mixing and dispensing valve An improved carbonated beverage mixing and dispensing valve (A) is illustrated as including a housing (10) having an entrance port (16) for the admission of carbonated mixing water and valve outlets (22a) for admitting flavored syrups. A valve (B) is carr... | 10/02/1984 |
| 4095571 | Filtering and mixing apparatus A device used to recycle used engine lubricating oil for addition to the fuel oil burned by a compression ignition engine includes a pump for pumping used lubricating oil from the engine sump. A filter removes contaminates from the oil before it is pumped... | 06/20/1978 |
| 3964731 | Mixing apparatus for multi-component plastics, particularly polyurethane A mixing apparatus including a mixing chamber with a reciprocating valve piston and a separate "recycle" chamber with a reciprocating grooved plunger. Piston and plunger are controlled in unison by a piston and cylinder assembly. In the "open" position of... | 06/22/1976 |
