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| Number | Title | Issue Date |
| 7793687 | Inflation/deflation adaptor assembly for inflating and deflating inflatable cargo dunnage bags An inflation/deflation assembly, which can be mounted upon the inflation valve assembly of an inflatable bag, so as to permit both the inflation and deflation of the inflatable as may be desired. The inflation/deflation assembly comprises an outer housing, and a con... | 09/14/2010 |
| 7549445 | Female coupling member of a pipe coupling A female coupling member of a pipe coupling is provided which has a fluid passage and a vale therein. The fluid passage is separated by the valve into a first-end side adapted to be connected to a conduit and a second-end side adapted to be connected to a male coupl... | 06/23/2009 |
| 7322375 | High bandwidth rotary servo valves A valve includes a rotating, substantially pressure-balanced spool that selectively aligns openings within the spool with openings within a sleeve to selectively connect ports of a manifold for gas or liquid routing. A valve may also include a stem, a needle coupled... | 01/29/2008 |
| 7246394 | Inflatable product with built-in housing and switching pipe An inflatable product includes an inflatable body, a fan and motor assembly for pumping air, a housing built into the inflatable body, and an air conduit disposed at least in part in the housing. The housing has an interior region. The air conduit is movable between... | 07/24/2007 |
| 7231940 | Control valve for a hydraulic power steering system A control valve for a hydraulic power steering system includes a pair of flow circuits arranged in parallel. Each flow circuit includes an upstream and downstream flow orifices arranged in series. Each set of orifices defines between the orifices an intermediate pre... | 06/19/2007 |
| 7152265 | Inflatable product provided with electric air pump An inflatable product includes a pack having a first vent with a first valve, a second vent with a second valve, a third vent in communication with the ambient, a first chamber in communication with the first vent, a second chamber in communication with the second v... | 12/26/2006 |
| 7152627 | Control valve for a hydraulic power steering system A control valve for a hydraulic power steering system includes a pair of flow circuits arranged in parallel. Each flow circuit includes an upstream and downstream flow orifices arranged in series. Each set of orifices defines between the orifices an intermediate pre... | 12/26/2006 |
| 7143782 | Pressure regulator module for controlling a gas A pressure regulator module for controlling a gas is provided, which includes a chamber, at least one gas inlet, and at least one gas outlet. In addition, a proportional valve operating essentially according to the pressure-equalization principle is post-connected t... | 12/05/2006 |
| 7089960 | Ball valve The present invention is a ball valve which may be attached to a fluid pipe for connection/disconnection between an entrance and an exit. More particularly, the present invention is a ball valve having a discharge orifice communicating with ambient air in addition t... | 08/15/2006 |
| 7080975 | Integrated pump and ceramic valve A pump apparatus is provided which comprises a displacement pump and a ceramic valve construction formed of a ceramic rotor and a ceramic stator having flat surfaces which are positioned in sealing relationship. The displacement pump comprises a reciprocating piston... | 07/25/2006 |
| 7077131 | Ventilator with dual gas supply A method of pressure regulation and a ventilator are provided. The ventilator includes a positive relative pressure gas supply, a negative relative pressure gas supply, and a diverter valve. The diverter valve includes a positive pressure port connected to the posit... | 07/18/2006 |
| 7059350 | Airflow controlling mechanism An airflow controlling mechanism including: a pneumatic cylinder having a cylinder body, an air chamber being formed in the cylinder body, a forward and a backward vents respectively passing through one end of the cylinder body for communicating the air chamber with... | 06/13/2006 |
| 7044148 | Apparatus and method for selectively securing a valve in an open or closed position The present invention generally relates to a locking apparatus adapted to interface with a valve and to selectively secure the valve in an open or closed position. More specifically, a valve handle lock is provided which is tamper resistant and is generally capable ... | 05/16/2006 |
| 7040347 | Air pump assembly with switching pipe An inflatable product that includes an inflatable body, a switching pipe and a fan and motor. The switching pipe is switched between a first position and a second position. The fan and motor inflates the inflatable body when the switching pipe is switched to the fir... | 05/09/2006 |
| 7025091 | Power steering control valve An improved structure a control valve for a power steering gear includes a valve sleeve having a plurality of lands and a valve core rotatable within the valve sleeve and having a plurality of lands. At least one land of the valve core and at least a pair of lands o... | 04/11/2006 |
| 7018348 | Method and apparatus for inducing sputum samples for diagnostic evaluation An apparatus for inducing sputum samples for diagnosing pulmonary disorders, especially as it relates to detection of early stages of lung cancer. The apparatus is comprised of a pneumatic chest compression vest, a pneumatic pressure generator, and a mouthpiece conn... | 03/28/2006 |
| 7007713 | Pressure control apparatus The present invention provides a pressure control apparatus for controlling the pressure at an output port without reducing the effective sectional area by controlling a main valve through the switching operation of a small-sized directional control valve, wherein t... | 03/07/2006 |
| 6910479 | Airway treatment apparatus with bias line cancellation An airway clearance system and method produces high frequency chest wall oscillations (HFCWO) and increased airflow velocities through the air passages to clear the lungs of mucus. The system includes a chest wall force applicator to produce the HFCWO by applying an... | 06/28/2005 |
| 6832621 | Transmitter isolation ball valve A ball valve assembly of the quarter-turn type for use in isolating an electronic level transmitter comprising a valve body having an inner chamber, an inlet or tank-side port, an outlet or transmitter side port, a valve body axis defined by the inlet and outlet por... | 12/21/2004 |
| 6813885 | Electrohydraulic setting device An actuating device (1) for carrying out mechanical work by means of a slave piston rod (5) in a hydraulically-operated slave cylinder (2), where the actuating device (1) is made up of a hydraulic pump (3) integrated with a slave c... | 11/09/2004 |
| 6520203 | Evacuation and inert gas introduction apparatus The evacuation and inert gas introduction apparatus capable of quickly switching over between the evacuation state and the inert gas introduction state, is provided for a synthesizing device for molecular asymmetrical catalysts. The evacuation line is con... | 02/18/2003 |
| 6499507 | Rotary valve A rotary valve 10 which includes a first sleeve member 24 and a second shaft member 32. The members 24 and 32 cooperatively provide pressure to a cylinder assembly 36, effective to cause the cylinder assembly 36 to move the wheels 20, 22 in a desired dire... | 12/31/2002 |
| 6446667 | Ball valve structure A ball valve includes a body, two side covers, a central shaft, a handle, a ball, and two ball pads. The ball defines a main flow hole and a secondary flow hole perpendicular to and is not communicated with the main flow hole. One ball pad defines a main ... | 09/10/2002 |
| 6431976 | Rotary distribution chamber for selective distribution of a fluid An air distribution chamber that allows selective distribution of air to a variety of vents or combinations thereof is provided. The distribution chamber comprises a nested pair of chambers that define a central cavity having an open and closed end, a sha... | 08/13/2002 |
| 6412790 | Vehicle suspension and rotary height control valve for same A height control valve is preferably adapted to be mounted in a trailing arm suspension and fluidly interconnected to a source of pressurized air and to an air spring. The height control valve comprises a housing having a cylindrical bore, a supply port, ... | 07/02/2002 |
| 6269838 | Rotary servovalve and control system An improved rotary servovalve system employs a rotary magnetic solenoid having an armature that includes at least one permanent magnet. The armature is rotatable relative to a stator formed as an electromagnet which is energizable to create alternative el... | 08/07/2001 |
| 6189807 | Valve controlled spraying system A spraying system having a control valve with an inlet port for connection to a liquid supply, a discharge port for connection to a spray nozzle, and a return port for connection to the liquid supply. The control valve includes a valve member which has a ... | 02/20/2001 |
| 6145540 | Rotary solenoid valves for vehicular applications A rotary solenoid valve for controlling pressurized fluid in a vehicular hydraulic system includes a housing having a bore. A valve body is mounted in the bore. The valve body includes an axial bore in fluid communication with a supply port, an output por... | 11/14/2000 |
| 6089270 | Slotted sleeve for a rotary valve The method comprises of gripping the component in a gripper of a work holding device mounted to a work holding spindle indexable about a first axis. Then cutting each slot of the array of slots in the bore by a series of cutting strokes of a cutting tool,... | 07/18/2000 |
| 6050497 | Rotational actuation fluid control valve for a hydraulically actuated fuel injector An actuation fluid control valve for a hydraulically actuated fuel injector comprises an injector body having a high pressure actuation fluid supply passage for admitting high pressure hydraulic actuation fluid into the fuel injector, an actuation fluid c... | 04/18/2000 |
| 6050496 | Rotational actuation fluid control valve for a hydraulically actuated fuel injector An actuation fluid control valve for a hydraulically actuated fuel injector comprises an injector body having an actuation fluid control passage, a low pressure actuation fluid drain passage, and a high pressure actuation fluid supply passage for acceptin... | 04/18/2000 |
| 5988220 | Three-way ball valve In a vertical type three-way ball valve wherein a ball (2) fitted on a stem (8) is accommodated in a valve body (1) and a flow passage is switched by the rotation of the stem (8), the ball (2) has a first port (13), a second port (14) and a third port (15... | 11/23/1999 |
| 5983940 | Spring biased rotary air valve There is provided a low profile valve assembly for controlling flow of air and the like. The valve assembly includes a housing defining inlet and outlet ports and a valve operator located within the housing. The operator includes a body portion seated in ... | 11/16/1999 |
| 5954093 | Rotary servo valve A rotary servo valve employs a double-edged blade-like valve gate mounted inside a sleeve having a plurality of valve ports circumferentially distributed around the sleeve at predetermined angular positions. The valve gate is reciprocable from a first to ... | 09/21/1999 |
| 5899226 | Hydraulic directional valve for servocontrols of aircraft in particular helicopters This directional valve comprises a closing element (1) rotatively mounted in a fixed sleeve (5) disposed in a body (2) with interposition of an annular element (4) between the closing element and the sleeve. Means are provided for locking the annular elem... | 05/04/1999 |
| 5785074 | Vented ball valve with lock-out ring The present invention relates to a ball valve with a shear stem which can be utilized in combination with a conventional ball valve or vented ball valve. The ball valve with a shear stem is utilized with a conventional ball valve or a vented valve assembl... | 07/28/1998 |
| 5771928 | Rotary slide valve for selective application of pressurized air or vacuum to an apparatus A rotary slide valve (1) for selective delivery of pressurized air or vacuum to an apparatus (3), which permits a very precise delivery of vacuum or pressurized air through a control port (2), especially to a plenum (16) of an apparatus (3) for introducin... | 06/30/1998 |
| 5738497 | Apparatus and method for controlling a rotary screw compressor A process and apparatus for controlling a rotary screw compressor capacity mechanism by manual pneumatic means. The apparatus compromises a specially placed rotary type cartridge valve enclosed in a valve body and housing. The assembly is attached via a f... | 04/14/1998 |
| 5727443 | Method of balancing a hydraulic valve for a power steering gear Hydraulic valves subjected to a pressure medium in power steering gear include a sleeve journalled on an input shaft, with the sleeve having a torsion bar connected thereto via a driven member. A method of balancing the hydraulic valve includes the steps ... | 03/17/1998 |
| 5676432 | Apparatus for controlling brake pressure applied to the wheels of automobiles using pressure fluid A brake pressure control apparatus for automobiles with an anti-lock braking system, which can be easily operated with a simple construction, and in which a rotary valve can be immediately returned to its initial position after the first ABS operation has... | 10/14/1997 |
