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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| Application No. | Application Title | Issue Date |
| 20120125455 | GAS FLOW MONITOR The invention relates to a gas flow monitor wherein the closing flow has the same value in a plurality of installation positions. According to the invention, the gas flow monitor is further intended to be suitable for small pressure loss values. Design and production ar... | 05/24/2012 |
| 20120048402 | CONSTANT PRESSURE VALVE USED IN A HIGH PRESSURE CYLINDER A constant pressure valve used in a high pressure cylinder contains a body including an inlet end, a channel, and an outlet end; a control structure being comprised of a controlling shaft, a sleeve member, and a rotary handle; an explosion protection valve disposed in t... | 03/01/2012 |
| 20120042969 | TIP-RESISTANT VALVE PLUGS A tip-resistant valve plug includes a valve head, first and second retention legs, and an anti-tip fin. The valve head includes a continuous partition defining a fluid barrier between a sealing side and an external side of the valve head. Each of the first and second re... | 02/23/2012 |
| 20120006740 | FILTER ASSEMBLY WITH REUSABLE BYPASS VALVE A filter unit includes an outer filter assembly, a bypass valve assembly, and an optional inner filter assembly. The bypass valve assembly can be separated from the outer filter assembly, allowing the bypass valve assembly to be recycled/reused when the outer filter ass... | 01/12/2012 |
| 20120006636 | Pressure actuating valve for impact dispersal device An extension valve for an impact dispersal system that includes an extendable member. The extension valve includes an actuating port that operates a first piston connected to a second piston. The second piston has a seat that isolates an inlet and an outlet. When a flui... | 01/12/2012 |
| 20120006429 | Safety valve A safety valve includes a valve body comprising a central passage, internal threads at one end, and an externally threaded neck at the other end; a hollow spring operated poppet comprising an externally and internally threaded proximal portion secured to the internal th... | 01/12/2012 |
| 20110297255 | HYDRAULIC TORRENT CONTROL VALVE A hydraulic control valve actuated by a diaphragm's integral spring whose thicker part acts with greater force to close the diaphragm and plug unit of the valve and whose thinner part may complete the closing motion so that the integral spring may weaken faster than lin... | 12/08/2011 |
| 20110284105 | VALVE SET A valve set includes a valve body which includes a central hole and multiple passages are located around the central hole. A tubular portion extends from the valve body a flexible plate has an insertion inserted into the central hole of the valve body and the flexible p... | 11/24/2011 |
| 20110283939 | NON-INTRUSIVE, LOW CHATTER PRESSURE RELIEF VALVE SYSTEM A pressure relief system and a non-intrusive, low chatter pressure relief valve for use with such as system are disclosed. The pressure relief valve allows excess pressure in a pressurized fluid line to flow through a flow return line to a fluid reservoir when the fluid... | 11/24/2011 |
| 20110247706 | Valve device A valve device includes a shell, a primary valve, a check valve, a stop, and a spring. The shell includes an inlet, an outlet, and at least one flange including a cavity in communication with the outlet. The check valve is movably located in the cavity. The check valve ... | 10/13/2011 |
| 20110240148 | VALVE WITH A DELTA P-FUNCTION AND FLOW LIMITING FUNCTION A device for regulating the flow in a heating and cooling system. The flow is controlled by a complete valve realized as a combination of a difference pressure valve (5) and a flow controlling valve (6) where the complete valve construction allows flushing... | 10/06/2011 |
| 20110220215 | HYDRO-GENERATOR SOFT START A mechanism for minimizing shock in a fluid has a housing, a valve disposed in the housing for regulating a flow of the fluid, a spring that urges the valve to oppose the fluid flow, and, a reservoir disposed in the housing downstream of the valve. The valve meters the ... | 09/15/2011 |
| 20110217157 | CONTROL VALVE WITH RADIAL SEALS A control valve is provided that includes a valve body, a valve element, a first radial seal, and a second radial seal. The valve body forms an inlet, an outlet, and a fluid flow passage therebetween. The valve element is disposed at least partially within the valve bod... | 09/08/2011 |
| 20110211974 | Curved pliant film valves Disclosed is a one-way valve and sealing assemblage wherein an affixed curved pliant film device, a compressible spring, and a reciprocal curved channel surface automatically work cooperatively to permit forward material flow above a predetermined fluid pressure thresho... | 09/01/2011 |
| 20110203683 | Regulator for Corrosive Gas Tapping in Under-Atmospheric Conditions The invention relates to a device for regulating a pressurised gas, said device including: a stopper (4) engaging with a seat (5) and capable of closing a pressurised gas passage; a so-called low-pressure chamber (29) downstream from the seat (5<... | 08/25/2011 |
| 20110186152 | Compact Flow-Through Fuel Pressure Regulator A compact pressure regulator (10′) has a body (20′) having a fuel inlet (23) and a fuel outlet (25) defining a fuel chamber (22′). A valve seat (24′) is defined in the body at the fuel outlet. A valve element (26â... | 08/04/2011 |
| 20110186153 | METERING SYSTEM FOR A LIQUID MEDIUM, PARTICULARLY A UREA-WATER SOLUTION The invention relates to a dosing system for a liquid reduction medium enabling precise dosing of the reduction medium in the exhaust gas system of an internal combustion engine. This is carried out particularly by using a quick and safe closing of a pressure-actuated d... | 08/04/2011 |
| 20110180164 | Pressure Relief Valve with a Poppet Valve Seal A pressure relief valve 1 having small dimensions and generating a high flow rate comprises an annular channel 15 between the pressure medium inlet 7 and the pressure medium outlet 8, the channel acting on a sealing cone 17 made of a s... | 07/28/2011 |
| 20110174397 | PRESSURE CONTROL VALVE A pressure control valve including a valve housing having a first opening and second opening. The valve housing including a valve member configured to control gas flow between the first opening and the second opening. The valve member is supported by a first membrane an... | 07/21/2011 |
| 20110168277 | PRESSURE RELIEF VALVE WITH REVERSE THREADED INLET A safety discharge system comprises a pressure relief valve having an inlet, designed to mate with an outlet of a heating appliance, and a relief outlet, wherein at least the inlet of the pressure relief valve and the outlet of the heating appliance include a threaded r... | 07/14/2011 |
| 20110139273 | EXHAUST CHECK VALVE OF SWASH PLATE COMPRESSOR An exhaust check valve installed in an exhaust opening of a swash plate compressor comprises: a valve body having a refrigerant inlet and at least one refrigerant outlet; a movable body installed in the valve body and configured to move such that the refrigerant inlet a... | 06/16/2011 |
| 20110138573 | AIR PRESSURE INNER CIRCULATION-TYPE AUTOMATIC COMPENSATION CONTROL DOOR CLOSER The present invention relates to a door closer, and particularly to an air pressure inner circulation-type automatic compensation control door closer, comprising a cylinder body and a telescopic rod, wherein a one-way air intake valve means is provided at the other end ... | 06/16/2011 |
| 20110114341 | INTEGRATED FIRE FIGHTING VALVE AND SYSTEM An enhanced fire prevention system includes a valve having three or more ports in which water is drawn from a source and diverted away from a water filtration system and directed towards a hose used to battle a fire. The valve includes a pressure relief assembly that is... | 05/19/2011 |
| 20110114204 | CONTROL VALVE The present invention enlarges the working pressure flowing into the working chamber and improves the response ability of the valve controlling the fluid using a compact solenoid portion. In the control valve according to the present invention, the first effective press... | 05/19/2011 |
| 20110094476 | PRESSURE RELIEF VALVE A pressure relief valve is disclosed. The pressure relief valve comprises a body, a valve member, and a resilient member. The body includes a guide bore, a seat surface, an inlet, a first outlet, and a second outlet. The valve member is received within a portion of the ... | 04/28/2011 |
| 20110048554 | SPRAYER PRESSURE RELIEF VALVE The pressure relief valve of the instant invention allows automatic operation when over pressurization occurs and also allows the user to operate manually when required. Passages within the valve are minimized in length and an expanding cross-section outlet geometry is ... | 03/03/2011 |
| 20110042282 | PRESSURE-CONTROLLED LIQUID SUPPLY SYSTEM AND PUMP CONTROL DEVICE FOR USE THEREIN A pressure-controlled liquid supply system uses a pump control device to switch a pump on and off in response to a pressure level in the pumped liquid. The pump control device minimizes short cycling of the pump by preventing shut off of the pump while a flow is present... | 02/24/2011 |
| 20110036423 | Relief Valve Device A relief valve device comprising: a valve body and a valve mechanism. The valve body includes a axial channel, an air inlet end and an air outlet end. The air inlet end is defined as one end of the valve body. The air outlet end is defined as the other end of the valve ... | 02/17/2011 |
| 20110023983 | GAS FLOW MONITOR A gas flow monitor is to be created in which a defined value range of the closing or nominal flow rate can be set by changing the bias of the spring without changing the lift of the closing/valve body with a consequential concomitant reduction or enlargement of the flow... | 02/03/2011 |
| 20100319792 | FLUSH CONTROL VALVE CORE ASSEMBLY A flush control valve core assembly is provided including a valve core body, a back spring accommodated in the valve core body, a valve piece and a valve shaft. The valve piece includes a discharge hole. A portion of the back spring extends as a pin structure, which is ... | 12/23/2010 |
| 20100282332 | High-Pressure Fluid Safety Valve A safety valve for a fluid circuit under pressure (P), the valve comprising a body (2), a piston (3) able to move with respect to the body between a closed position and a purge position. A thermally deformable element (5) acts to cause the piston to move from the closed... | 11/11/2010 |
| 20100263738 | Pressure Equalization Assembly for a Liquid Storage Vessel A vapor pressure equalization assembly having an underpressure relief assembly and an overpressure relief assembly in fluidic communication with the vapor space of a liquid storage tank (vessel). The underpressure and overpressure relief assemblies each have movable pis... | 10/21/2010 |
| 20100201051 | BLEEDER VALVE FOR PRESSURIZED FURNACE A shaft furnace bleeder valve for controlling a gas outflow from the interior of a pressurized furnace to the ambient atmosphere through an exhaust conduit is proposed. The bleeder valve comprises a valve seat associated with the exhaust conduit, a movable closure membe... | 08/12/2010 |
| 20100175757 | WATER DELIVERY DEVICES An adaptor for a water delivery device to reduce water wastage, wherein movement of a plunger over a first part of its stroke is controlled by an air flow control valve to provide a predetermined volume of water and movement over a second part of the stroke is substanti... | 07/15/2010 |
| 20100158704 | COMPLIANT-SEAL CHECK VALVE A check valve includes a valve seat and a compliant member that moves to seal the check valve by contacting the valve seat. A method for priming a chromatography solvent pump includes providing the check valve in fluid communication with an outlet of the pump, drawing f... | 06/24/2010 |
| 20100139789 | RELIEF VALVE WITH FLUID OUTLET A relief valve comprises a housing having a supply line inlet, for allowing fluid to enter the housing and a fluid supply outlet configured for allowing fluid to exit the housing. The fluid exiting the housing flows proximate and against a valve seat, thereby, flushing ... | 06/10/2010 |
| 20100132816 | CHECK VALVE FOR A HYDRAULIC POWER-ASSISTED STEERING SYSTEM The invention relates to a check valve for a hydraulic power-assisted steering system, with a valve housing, into which a movable valve member is inserted, wherein the valve member interacts with sealing effect with a valve seat, and has lateral guide elements for guidi... | 06/03/2010 |
| 20100116364 | BACKFLOW PREVENTION DEVICE A backflow prevention device includes a check valve including a valve body and a valve seat, an enclosure member retained by a peripheral member and arranged at a downstream side of the valve body, the enclosure member including an entrance facing an upstream side and b... | 05/13/2010 |
| 20100104456 | HYDRO-PNEUMATIC SYSTEM WITH PRESSURE LIMITING VALVE A hydro-pneumatic system has an air powered motor driving a hydraulic pump with a pressure limiting valve that turns off air flow to the air motor when a hydraulic pressure output by the pump at a sense port of the valve reaches a certain limit. A valve element of the v... | 04/29/2010 |
| 20100059130 | Directional Control Valve Device and Directional Control Valve Device Block Having Directional Control Valve Devices [PROBLEM] To provide a directional control valve assembly, in which a check valve for controlling a flow rate of pressure oil to be guided to a directional control valve as a main valve and a control means for limiting an opening degree of the check valve by a pressure ... | 03/11/2010 |
