Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Application No. | Application Title | Issue Date |
| 20120018010 | Hydraulic Transmission A hydraulic transmission has a primary unit and a secondary unit, which are connected to each other in a closed circuit by way of a first and a second working line. The primary unit and/or the secondary unit has a plurality of cylinder/piston units, which can each be ac... | 01/26/2012 |
| 20120018003 | LATCHING VALVE A latching valve includes a housing, a supply port, defined in the housing, which receives supply pressure, a delivery port defined in the housing, an exhaust port, defined in the housing, and an apply port defined in the housing. A housing bore fluidly communicates wit... | 01/26/2012 |
| 20120012199 | SYSTEM AND METHOD FOR HYDRAULICALLY MANAGING FLUID PRESSURE DOWNSTREAM FROM A MAIN VALVE BETWEEN SET POINTS A system for hydraulically managing fluid pressure between selected set points includes a pilot control system operably coupled to a main valve. The pilot control system includes at least one fluid conduit, a variable orifice assembly, and a control pilot valve apparatu... | 01/19/2012 |
| 20110297251 | COMBINED HYDRAULIC CONTROL VALVE A combined hydraulic control valve is disclosed, the valve includes a modularized pilot control valve assembly (101), a modularized two-way cartridge valve control assembly (201), and a valve block body (301); the modularized pilot control valve ass... | 12/08/2011 |
| 20110247359 | EXPANSION VALVE WITH FORCE EQUALIZATION An expansion valve (1) is disclosed which comprises an inlet opening (2), at least one outlet opening (3) and first and second valve parts. The inlet opening (2) is adapted to receive fluid medium in a liquid state. The outlet opening(s) (... | 10/13/2011 |
| 20110232779 | Excess flow safety shut-off valve The present invention relates to an excess flow safety shut-off valve including: a cylindrical body having an outlet and a mounting part formed at one side thereof and a plurality of guides formed in the mounting part in such a manner as to be protruded inwardly from th... | 09/29/2011 |
| 20110214756 | Servo Valve The invention relates to a servo valve for a hydraulic vehicle steering system, having a valve sleeve and an input shaft which is arranged within the valve sleeve and can be rotated relative to the valve sleeve about a common axis, the valve sleeve and the input shaft e... | 09/08/2011 |
| 20110192471 | VARIABLE FLOW RATE VALVE SYSTEM A variable flow rate valve system adjusts flow rate using the flow medium itself by creating differential pressures that determine a position of a valve member in relation to an associated valve seat. The valve system includes a diaphragm that divides a valve chamber in... | 08/11/2011 |
| 20110174380 | VACUUM CONTROL SYSTEM AND VACUUM CONTROL METHOD This invention provides a vacuum control system using a vacuum pump to control a vacuum pressure and a flow of a processing gas in a vacuum chamber. The vacuum control system includes: a plurality of vacuum control valves, each of the valves being connected between each... | 07/21/2011 |
| 20110153177 | METHOD AND DEVICE FOR DETERMINING AND BALANCING THE WORKING POINT OF VALVES IN A HYDRAULIC SYSTEM A method and an apparatus for ascertaining the working point of switchover valves of a hydraulic system of a vehicle, in particular of a hydraulic brake circuit, are described in which the hydraulic system contains at least a pressure generating arrangement, a high-pres... | 06/23/2011 |
| 20110132472 | DEVICE FOR CONTROLLING A PILOT PRESSURE SIGNAL A device (100, 200, 200bis, 300, 300bis) for controlling a pilot pressure signal of hydraulic valves (3), for controlling the handling of gravitational loads (M), operating between two pilot lines (108, 109, 208, 209, 308, 309) between the va... | 06/09/2011 |
| 20110132473 | HYDRAULIC CONTROL VALVE ASSEMBLY WITH MONOLITHIC BODY AND SINGLE SPOOL PORT LOCK A hydraulic control valve with a monolithic body having four sides located between a top and a bottom, and all pilot ports on a body front side, valve work ports on the top side, three bores running within the body from the front side to a rear side, a spool in each bor... | 06/09/2011 |
| 20110126920 | HYDRAULIC VALVE DEVICE The invention relates to a hydraulic valve device having a valve housing (10) in which an activating piston (16) is guided in a movable manner, which activating piston (16), being actuable by an actuating device (18), activates a pilot valve ... | 06/02/2011 |
| 20110108137 | PRESSURE REGULATOR HAVING AN INTERGRAL PILOT AND SELF-RELIEVING MECHANISM A high flow pressure regulator valve is disclosed having an integral pilot valve. The disclosed valve includes a pressure regulating portion including inlet and outlet ports, a valve seat, valve disc and a spring for biasing the valve disc into engagement with the valve... | 05/12/2011 |
| 20110073193 | SENSOR REPLACEMENT VALVE A fluid control system may comprise a pressurized fluid path; at least two sensors for determining a state of fluid within the main fluid path; an isolation valve; and fluid-filled connection paths between the main fluid path and each of the at least two sensors. The co... | 03/31/2011 |
| 20110000552 | DYNAMIC LEAK CONTROL FOR SYSTEM WITH WORKING FLUID An organic rankine cycle system includes a sensor for sensing a condition indicative of pressure within the system and a control which responsively provides heat to said system when the pressure within the system is sensed to be at a predetermined threshold, near ambien... | 01/06/2011 |
| 20100326541 | STAND FOR PRESSURE RELIEF VALVE A frame for supporting a pressure relief valve located within a frac line connected to high pressure pumps on frac trucks. A metallic base is formed from rectangular tubing in the shape of a box. Saddles on the base support a tee on the lower portion of the relief valve... | 12/30/2010 |
| 20100300552 | HYDRAULIC VALVE DEVICE The invention relates to a hydraulic valve device comprising a fluid connection arrangement (10) having different types of connections, and a mobile control device (18) for at least partially controlling connections of the fluid connection arrangement (... | 12/02/2010 |
| 20100294375 | SPEED CONTROL VALVE SYSTEM A speed controller valve system for regulating an opening speed and a closing speed of a pressure reducing valve includes a first inlet couplable to a main valve inlet of a pressure reducing valve. An outlet is couplable to a power chamber of the pressure reducing valve... | 11/25/2010 |
| 20100269923 | Electronic faucets for long-term operation An electronic faucet (10) mounted on a countertop (12) includes a housing, at least one fluid inlet line (24a, 24b) extending into the housing, a fluid outlet (46) from the housing, a solenoid (142, 143) for operat... | 10/28/2010 |
| 20100243068 | Servo pressure control valve A valve for controlling pressure in a system is provided. The valve includes a housing, a servo spool and a piston positioned within the housing with the piston and the servo spool being movable relative to each other. The piston defines a first orifice configured to co... | 09/30/2010 |
| 20100229966 | FUEL SYSTEMS AND METHODS FOR CONTROLLING FUEL SYSTEMS IN A VEHICLE WITH MULTIPLE FUEL TANKS Fuel systems and methods for controlling fuel systems in a vehicle with multiple fuel tanks are provided. An exemplary vehicle fuel system includes a first fuel tank including a first pressure sensor, and a second fuel tank. The system may further include a fuel tank is... | 09/16/2010 |
| 20100126599 | PILOT OPERATED CHECK VALVE A pilot-operated check valve (1) including a valve housing (2) and a main slide (4), the main slide (4) being movable between a first and a second position in the valve housing (2), the main slide (4) communicating with at least... | 05/27/2010 |
| 20100126601 | Pilot Valve For A Pressure Reducing Valve A pilot valve (2) for controlling operation of a hydraulically-actuated pressure reducing valve, the pilot valve including a housing (4), and a first valve member (15) mounted in the housing for longitudinal movement along an axis relative to the ho... | 05/27/2010 |
| 20100078081 | TEMPERATURE CONTROL VALVE A valve comprises a valve body including an inlet through which fluid flows into the valve, a main valve including a main poppet positioned in the valve body and including a chamber therein, wherein the fluid flows into the chamber, a pilot valve including a pilot poppe... | 04/01/2010 |
| 20100071786 | Pressure Loaded Service Regulator with Pressure Balanced Trim A gas regulator includes an actuator, a regulator valve, and pressure loading device. The pressure loading device provides a pressure load to a surface of a diaphragm of the actuator to act against a downstream pressure being applied to the opposite surface of the diaph... | 03/25/2010 |
| 20100071784 | Pilot switch A pilot valve is switchable between snap and throttle modes. The pilot valve supplies output gas to a process control valve and has an adjustable biasing member for applying an adjustable force to a pilot plug in a pilot body interior. An opposed force is applied to the... | 03/25/2010 |
| 20100059125 | Balanced pilot operated check valve A valve assembly includes a check valve element in an output chamber. The check valve element opens to permit forward flow of fluid under pressure in the output chamber from an input port to an output port. The check valve element closes to block back flow of fluid unde... | 03/11/2010 |
| 20090320934 | Intake-Gas Throttle Device An intake-gas throttle device in the intake pressure region of an air-conditioning compressor, in particular for air-conditioning systems of motor vehicles, the device controlling the delivery rate of the air-conditioning compressor.... | 12/31/2009 |
| 20090283149 | Automatic flush actuation apparatus An automatic flush actuation apparatus, which is incorporated with a flushing system having a water inlet, a water outlet, and a water chamber communicating therebetween, that includes a valve member being moved by a flush lever for releasing the water pressure within t... | 11/19/2009 |
| 20090283150 | Automate fluid flow control system An automate fluid flow control system includes a valve member for being sealedly disposed within a fluid chamber to seal a flow of fluid flowing from a fluid inlet to a fluid outlet, a relief valve having a fluid passage extended along the valve member for communicating... | 11/19/2009 |
| 20090205723 | HYDRAULIC CIRCUIT OF CONSTRUCTION MACHINE A throttle path for returning a part of pilot oil to a tank is formed by a tank path provided in a valve block of a control valve and a notch provided in a spool thereof. The above path is opened within a section from a vicinity of a stroke where a hydraulic actuator st... | 08/20/2009 |
| 20090044871 | LOW PRESSURE RISE RATE PILOT OPERATED POPPET RELIEF VALVE A relief valve for a hydraulic machine that combines a poppet valve assembly and a pilot valve assembly together using a connector pin wherein internal fluid passageways within the poppet and pilot spools provide a fluid flow path between the inlet of the valve and a ca... | 02/19/2009 |
| 20090041592 | Pump A pump has a body and a pressurizing barrel. The body has an outlet tube and a magnetic check valve mounted in the outlet tube to prevent a back-flow current from damaging an impeller mounted inside the body. When closed, the magnetic check valve actuates a magnetic swi... | 02/12/2009 |
| 20090007972 | Water circulation system valve assemblies having water temperature control A valve assembly for a water circulation system includes a valve body defining a bypass passage between a hot water side and a cold water side of the valve body. The bypass passage has a valve seat therein. A bypass valve is received within the bypass passage. The bypas... | 01/08/2009 |
| 20080314462 | Pressure Regulator A pressure regulator, comprising a pressure regulating mechanism and a connector. A supply connecting tool (3) supplying a pressurized fluid to a body part (11) with the built-in pressure regulating mechanism (5) is connected to the connector (2<... | 12/25/2008 |
| 20080230127 | ACTUATOR POSITION CONTROL DEVICE USING A FAIL FREEZE SERVO-VALVE The actuator (50) comprises a slide (52) carrying at least two stages (54, 56) and being capable of sliding in a cylinder and two control chambers (62, 64) connected to respective use holes (U1, U2) of an electrically controlled... | 09/25/2008 |
| 20080152546 | ENHANCED SAMPLE PROCESSING DEVICES, SYSTEMS AND METHODS Devices, systems, and methods for processing sample materials. The sample materials may be located in a plurality of process chambers in the device, which is rotated during heating of the sample materials.... | 06/26/2008 |
| 20080078456 | HYDROSTATIC VARIABLE UNIT WITH A SERVO SYSTEM AND A VALVE UNIT CONTROLLING THE SERVO SYSTEM The invention relates to a hydrostatic variable unit with a servo system bringing about the control of the hydrostatic unit and with a valve unit controlling the servo system, the valve unit comprising two magnetically actuated proportional pressure-reducing valves whic... | 04/03/2008 |
| 20080058720 | Flow Based Pressure Isolation and Fluid Delivery System Including Flow Based Pressure Isolation and Flow Initiating Mechanism The fluid delivery system includes a pressurizing device for delivering a pressurized injection fluid, a low pressure fluid delivery system, and a pressure isolation mechanism adapted for fluid communication with the pressurizing device and low pressure fluid delivery s... | 03/06/2008 |
