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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7311118 | Floating ball check valve In an improved floating ball check valve including a body having an outlet port, a cap, having an inlet port, joined with the body, a ball guide slidably received within the body and having a ball pocket for receiving a sealing ball, a biasing spring for biasing the... | 12/25/2007 |
| 7275561 | Discharging valve assembly of reciprocating compressor A discharging valve assembly for a reciprocating compressor includes a discharging cover coupled with a front frame so as to cover a cylinder in which a piston is inserted; a discharging valve inserted in the discharging cover, and opening/closing an inner space of ... | 10/02/2007 |
| 7264024 | Valve for closing a container, container and a system and method for filling container A valve for closing a container and for enabling the container to be filled has a housing (20) with an inlet port (30) and an outlet port (40). A closing member (60) is provided for sealingly closing the valve at the inlet port (30... | 09/04/2007 |
| 7258135 | Pressure regulator for a fuel supply system of an internal combustion engine A pressure regulator for a fuel supply system of an internal combustion engine for regulating a fuel pressure, including a valve, having a valve ball forced against a valve seat into the closing position by the action of a valve leaf spring. With the valve open, at ... | 08/21/2007 |
| 7147002 | Modular multi-function fluid flow control device A multi-function fluid flow control device is disclosed. A body houses a filter screen, a check valve and an orifice plate mounted on a frame which is removable from the body as a unit through an opening in the body sealed by a removable plug. The orifice plate is r... | 12/12/2006 |
| 7146870 | Circulation unit of rolling element with lubrication system A circulation unit with lubrication system for rolling element includes a lubricant inlet formed with the sliding element and the lubricant inlet communicates with lubricant path such that lubricant can be directly fed to the rollers. The circulation unit has a comp... | 12/12/2006 |
| 7051857 | Coupling device and improved method of controlling torque transmission A method of controlling a pressure control valve assembly (69) to control a control pressure (43,71) in a system (11) including a source (47,49) of pressurized fluid. The control valve assembly is operable to vary the control pressure in ... | 05/30/2006 |
| 6968858 | Check valve The check valve according to the invention significantly reduces the generation of noise by producing an asymmetrical circulation around the closing body causing a force resulting from the flow and acting on the closing body to have a transverse component in relatio... | 11/29/2005 |
| 6953054 | Relief valve A relief valve is provided with an elastic body seal sealed into an annular gap between a ball receiver and a valve hole, and is slidably in contact with an inner periphery of the valve hole such that the elastic body seal is not compressed in an axial direction of ... | 10/11/2005 |
| 6910745 | Check valve with vibration prevention function In a check valve of the present invention, when a pressure action direction of a fluid on a valve body is assumed to be X, a spring receiving surface that abuts with a seat surface that is at one end in an axial direction of the helical compression spring is made to... | 06/28/2005 |
| 6892758 | Check valve with vibration prevention function for valve body A transmission member that transmits urging force of a helical spring to a valve body is disposed between the valve body and the helical spring. The transmission member changes a direction of an urging force transmitted to the valve body such that the urging force i... | 05/17/2005 |
| 6851449 | Spring-loaded oil overflow valve for diaphragm compressors A diaphragm head with a high energy content of the oil space (pressure×volume) has a strong negative influence on the corresponding behavior of the oil overflow valve. The reaction of the valve leads to an undesirable increase in the opening time by which more oil ... | 02/08/2005 |
| 6837266 | Remotely actuated multiple pressure direct acting relief valve A multiple pressure direct acting relief valve is disclosed. The multiple pressure relief valve comprises an actuating cylinder, a relief valve and an adjustment screw interconnecting the actuating cylinder and the relief valve. The relief valve includes a low press... | 01/04/2005 |
| 6692396 | Solenoid actuated variable pressure relief valve assembly for limited slip differential assembly A differential assembly for a motor vehicle comprises a differential case rotatably supported in an axle housing, opposite output shafts drivingly connected to the differential case, a friction clutch pack for controlling the differential action, and a hy... | 02/17/2004 |
| 6675823 | Relief valve A gap 11 between a flange 4A of a bail support member 4 and the inner circumferential surface of a sleeve member 7 functions as an orifice for restricting an oil flow downstream of a seat hole (6B). The movement of the ball support member 4 is stabilized,... | 01/13/2004 |
| 6662824 | Check valve slantedly biased against pressure-imposing direction A check valve allowing one-way fluid flow is disposed at an outlet side of a pressurizing pump. The check valve includes a valve seat and a valve body for opening and closing a fluid passage in response to a fluid pressure supplied to the check valve. The... | 12/16/2003 |
| 6622752 | Pressure relief valve The present invention provides a pressure relief valve, which achieves a reliable sealed structure in a valve holder 31 without the valve holder 31 jutting far out from a common rail, assures stability of operation of a valve spring 11 in a valve holder 3... | 09/23/2003 |
| 6439263 | Pressure regulating valve and method for producing a pressure regulating valve The pressure regulating valve (2) proposed here can be designed with the aid of the outflow throttle restriction (28) downstream of the valve seat (22) in such a way that the pressure regulating valve (2), as the fluid flow becomes greater, sets or adjust... | 08/27/2002 |
| 6332761 | Radial piston pump for high pressure fuel delivery The invention relates to a radial piston pump for high-pressure fuel delivery in fuel injection systems of internal combustion engines in a common rail injection system having a drive shaft that is supported in a pump housing. The drive shaft is eccentric... | 12/25/2001 |
| 6250336 | Water supply coupling with one-way valve for recreational vehicles On a recreational vehicle, a water supply coupling is provided to permit the hookup of an external water supply to the plumbing of the recreational vehicle. The coupling selectively permits one-way flow into, but not out from, the plumbing, thereby mainta... | 06/26/2001 |
| 6206032 | High pressure check valve fittings High pressure check valves and fittings, including button head fittings, sealant fittings, and lubrication adapters, that are equipped with dynamically self-centering plungers. Each metallic fitting comprises a fluid inlet and a fluid outlet. The inlet en... | 03/27/2001 |
| 5992452 | Ball and seat valve assembly and downhole pump utilizing the valve assembly Disclosed is a system used to increase the wear life of ball and seat valves and of ball and seat valves utilizing a piston mechanism to unseat the ball from the seat, which during operation, create turbulent flow within the valve preventing sand and othe... | 11/30/1999 |
| 5980224 | Fuel injection pump An improved delivery valve for a plunger type fuel distribution pump characterized by ease of manufacture, lightness, and enhance performance in achieving both a check valve function and a retraction volume function. Specifically, previous machined constr... | 11/09/1999 |
| 5775360 | Pressure control valve The invention provides a pressure control valve which can be made of aluminum as much as possible and has a comparatively light weight and wherein a seat member made of steel can be force fitted into a spool of aluminum at a room temperature. The pressure... | 07/07/1998 |
| 5692812 | Brake regulator with double valve A regulator (1) having a casing (10) with at least one bore (11) therein. A piston (12) slidably located within the bore (11) to delimit first (13) and second (14) chambers. The first (13) and second (14) chambers being separated from one another by a val... | 12/02/1997 |
| 5626325 | High pressure control valve for a fuel injection system A high pressure control valve according to the present invention provides effective and predictable control of a timing fluid and injection fuel metering system of an internal combustion engine. The control valve includes an armature that abuts against a ... | 05/06/1997 |
| 5609477 | Inlet/outlet valve arrangement for a fluid pressure intensifying apparatus A fluid pressure-intensifying apparatus of the double-acting type has end check valve assemblies (25, 25a). Each assembly has an inner low pressure poppet (100) communicable with the high pressure chamber (30) of the apparatus, and an outer high pressure ... | 03/11/1997 |
| 5595213 | Quick connector with check valve A fluid connector assembly includes a male member, a female member and a one-way check valve. A first resilient elastomeric member is disposed between the male and female members for retaining the connection between the two members. A second resilient ela... | 01/21/1997 |
| 5503542 | Compressor assembly with welded IPR valve A compressor has an hermetic shell within which is located an internal pressure relief (IPR) valve. The valve is resistance welded directly to a separation plate in a scroll compressor or directly to the outside wall of the discharge muffler in a piston/c... | 04/02/1996 |
| 5431183 | Flow regulator valve A flow regulator valve that is intended particularly for positive-displacement pumps for auxiliary power steering systems in motor vehicles contains in a valve borehole (1) a flow regulator piston (3) that is guided in an axially movable and sealing manne... | 07/11/1995 |
| 5412948 | Hydrostatic continuously variable transmission A ball and piston valve for controlling the flow of hydraulic fluid to a motive means have the ball and piston spring biased in opposing directions and with both initially subject to a first hydraulic fluid pressure that allows the springs to cause the ba... | 05/09/1995 |
| 5353834 | Check valve The invention relates to a check valve, for use as an insert check valve, with a valve seat and a valve element that is resiliently prestressed against the valve seat by a valve spring. According to the invention, a retaining element embodied as a retaini... | 10/11/1994 |
| 5293897 | Pressure valve A pressure valve to be secured into a supply line between a pump work chamber of a fuel injection pump and a injection location of an internal combustion engine to be supplied with fuel. A pressure valve closing element provided with a sealing face is pre... | 03/15/1994 |
| 5251664 | Quiet check valve for pulsating flow A check valve (4) with spherical, spring-loaded valve head (25) is used for pulsating flows, especially in a fuel injection system for Otto engines. As a result of low flow resistance, such check valves have had a tendency to cause noise when the valve he... | 10/12/1993 |
| 5190362 | Pressure limiting valve with uncoupled valve closing body and tappet A pressure limiting valve has a valve closing member (ball), which is subjected to a hydraulic opening force and is indirectly subjected to a closing force generated by a compression spring which avoids hysteresis that impairs the switching behavior of th... | 03/02/1993 |
| 5181768 | Pressure switch valve, for hydraulic vehicle brake systems with traction control (ASR) A pressure switch valve which briefly raises a pressure during switching of the valve. The pressure switch valve has a cylindrical chamber with a first ball that engages a valve seat of an inflow conduit. A second, spring-loaded ball is supported on the f... | 01/26/1993 |
| 5170818 | Safety valve A safety valve including a brass valve body having a through bore provided with a circular sharp-edged valve seat and another sharp edge. A valve stem carrying a ball valve and a biasing spring disposed in the through bore. A cap member screwed through on... | 12/15/1992 |
| 5141025 | Check valve A quiet closure check valve, including a housing having a valve seat toward the housing, a ball is associated with the valve seat to close the valve. The ball is received longitudinally displaceably in a recess of a spring-loaded support element that is d... | 08/25/1992 |
| 5035261 | Pump and valve apparatus A pump consists of a valve box in which a valve chamber inlet and outlet are each provided with a valve, and reciprocating member in a cylinder that communicates with the valve chamber of the valve box to open the valves. A pressure action chamber is prov... | 07/30/1991 |
| 4932434 | Adjustable safety relief valve An adjustable pressure relief valve is disclosed comprising a valve body having an inlet and an outlet, a spherical valve seat associated with the inlet, a valve member having a mating spherical sealing surface configured to seal off the flow of fluids th... | 06/12/1990 |
