Spring Patents (Class 251/238)
  • Patent number: 11502492
    Abstract: A watertight electrical compartment for use in an irrigation device can include a compartment body having a chamber and a sealing section configured to mate with one or more sealing rings. A sealing cap can mate with the sealing section and/or the sealing rings to seal the chamber. A cap retainer can be advanced over at least a portion of the sealing cap. One of the compartment body and cap retainer can have internal threads to be screwed onto external threads of the other one of the compartment body and cap retainer. The cap retainer can also have a stopping feature to keep the sealing cap in its sealed position. The watertight electrical compartment can be used in a wireless flow sensor assembly, a battery operated irrigation controller, and/or a battery-operated central controller device, to provide irrigation control, and/or sensor information, without the need for AC power.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: November 15, 2022
    Assignee: Hunter Industries, Inc.
    Inventor: Michael F. Paul
  • Patent number: 8418995
    Abstract: A sanitary fitting includes a fitting housing; a cartridge disposed in a recess of the fitting housing, the cartridge having a control arm which, for an adjustment of a temperature of water, is rotatable about a rotation axis of the cartridge and, for an adjustment of water flow, is pivotable about a pivot axis running at right angles to the rotation axis, between an off setting and a maximum setting; an actuating lever disposed on the control arm, the actuating lever rotating and pivoting the control arm; and a cap covering the recess and the cartridge, the cap limiting a pivot motion of the actuating lever, and thus of the control arm, between the off setting and the maximum setting in an economy setting.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: April 16, 2013
    Assignee: KWC AG
    Inventors: Michael Lehner, Susanne Keller
  • Patent number: 7891638
    Abstract: The present invention provides a water control valve core with a segmented locking function. The invention includes a valve casing, a brake unit, and a water control element. A bottom plate under the tube portion of the seat of the brake unit is placed within the hold tank of the valve casing. A driven portion penetrates the bottom plate. The fixed valve, free valve and driving seat of the water control element are arranged within the hold tank of the valve casing. An upper locking portion is assembled under the bottom plate of the seat of the brake unit; and a collapsible lower locking unit is individually manufactured and then assembled onto the locating portion at top of the driving seat of the water control element. The lower locking unit could be interlocked with the upper locking portion.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: February 22, 2011
    Assignee: Kuching International Ltd.
    Inventor: Mei-Li Chen
  • Patent number: 7740226
    Abstract: An electromagnetic actuator is disclosed. The actuator has a coil arrangement which can be excited electrically, and has an armature. The armature is mounted such that it can move axially in the coil arrangement, is composed of soft magnetic material, and is moved in the axial direction when the coil arrangement is excited. A guide sleeve is fixed in the coil arrangement and guides the armature in the axial direction. The guide sleeve is produced from a soft magnetic material.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: June 22, 2010
    Assignees: Robert Bosch GmbH
    Inventors: Markus Engel, Horst Franke
  • Publication number: 20100065768
    Abstract: An in-line fluid flow control valve includes a housing defining an inlet chamber and an outlet chamber aligned along a outlet axis. The housing further defines a bore with a flow control device and an adjustment mechanism disposed therein for regulating a fluid flow rate. The flow control device defines a fluid passage interconnecting the inlet chamber and the outlet chamber. The plane and the outlet axis define an acute angle therebetween. The angled position of the bore relative to the outlet axis permits access to and adjustment of the flow control device, as well as replacement of the flow control device, without disconnecting any fittings attached to the inlet and the outlet of the control valve.
    Type: Application
    Filed: September 12, 2008
    Publication date: March 18, 2010
    Inventors: John H. Swab, Matthew C. Dunlap, Thomas M. Suggs, Donald E. Weber
  • Patent number: 7353834
    Abstract: A pressure regulator valve including a valve seat separating a fluid flowpath into an upstream region and a downstream region. A valve closure member is mounted on a valve stem, the valve stem operable to vary a separation between the valve seat and the valve closure member. A diaphragm is mounted in a housing, mobile portions of the diaphragm responding to changes of pressure in the downstream region by changing position relative to the housing. A diaphragm stem is attached to the diaphragm such that movement of the mobile portions of the diaphragm causes movement of the diaphragm stem. A linkage mechanically couples the diaphragm stem to the valve stem. The linkage includes four connected links, the links attached to each other at connection points. The linkage having a mechanical advantage which varies as the positions of the diaphragm stem and valve stem change.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: April 8, 2008
    Assignee: Dresser, Inc.
    Inventor: Ronald E. Childers
  • Patent number: 7090150
    Abstract: The activating mechanism comprises a manually-operated control lever rotatably constrained at a first end thereof to a pivot arranged in proximity of a front portion of a handle grip of a spray gun and an activating lever acting on a pusher element of an intercept valve. The activating lever has a first end portion which is rotatably constrained on a hinging pivot arranged in proximity of a back portion of the handle grip and a second end portion which is operatively constrained to the control lever.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: August 15, 2006
    Assignee: Arrow Line S.R.L.
    Inventor: Roberto Amaduzzi
  • Patent number: 6908071
    Abstract: A faucet includes a body having a main bore including an inlet and an outlet. A bonnet and spout are connected to the body. A stem includes a first portion inserted into the outlet of the main bore and a second portion that projects through the bonnet chamber to a distal end. The first portion of the stem comprises a flow path and the stem is slidably movable relative to the body and bonnet between a first position and a second position. A seal is carried by the stem and is engaged with the stem and sealing face when the stem is located in the first position. The seal is spaced from the sealing face when the said stem is moved to the second position. A handle is operably connected to the distal end of the second portion of the stem. A spring biases the stem to the first position.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: June 21, 2005
    Assignee: The Meyer Company
    Inventors: Henry G. Roethel, Michael H. Meyer, Raymond P. Kawolics
  • Patent number: 6776388
    Abstract: A Valve actuator with integral amplifying means having multiple linkage arrangements able to amplify the force generated by an air signal acting on a flexible diaphragm, and to transmit this force amplified on to a lower compression spring and ultimately on to a sliding actuator stem.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: August 17, 2004
    Inventor: Hans D. Baumann
  • Patent number: 6725820
    Abstract: A valve-operating mechanism includes cam followers carried on an engine body 1 with their tip ends being in sliding contact with the cam, rocker arms integrally connected to the cam followers and carried on the engine body coaxially with said cam followers with their tip ends being connected to valves, and valve springs for biasing the valves in closing directions. In the valve-operating mechanism, auxiliary springs are connected to the cam followers for biasing and turning the cam followers in the same directions as directions in which the valve springs bias and turn the rocker arms through the valves. Thus, a couple of forces generated over the axis of the cam follower and the rocker arm due to biasing force of the valve spring can be offset in a valve-closing process.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: April 27, 2004
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Keita Ito, Yasutake Ryu, Tetsuya Arai
  • Patent number: 6126046
    Abstract: A device for facilitating easier operation of a spigot having a body portion, a reciprocatable portion which is linearly movable with respect to the spigot body portion between an open position and a closed position to regulate fluid flow through the spigot, and a spring member urging the reciprocatable portion to the closed position, includes a mount member which is configured to be removably attachable to a portion of the spigot and an actuator member connected to the mount member. The actuator member is movable with respect to the mount member between a first location in which the actuator member, when attached to the spigot, urges the reciprocatable portion of the spigot to the open position to allow fluid to flow through the spigot, and a second location in which the actuator member, when attached to the spigot, allows the spring member of the spigot to urge the reciprocatable portion of the spigot to the closed position to prevent fluid from flowing through the spigot.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: October 3, 2000
    Inventor: Eric J. Baculy
  • Patent number: 5560389
    Abstract: A pressure reducing valve device includes an adjusting spring for changing its length by a first screw member and a valve stem rotatable by a second screw member so as to control a spring ratio, and a load sensing reducing valve movable on a bracket so as to align a piston with the valve stem by a third screw member whereby the pressure reducing valve device controls a fluctuating width of dynamic characteristics so as to match with an ideal braking line of any of an empty, loaded and surplus loaded vehicle.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: October 1, 1996
    Assignee: Hyundai Motor Company, Ltd.
    Inventor: Cham-Gil Choi
  • Patent number: 5458288
    Abstract: The invention involves the use in a drinking fountain of a large control bar which is pressed by the user to operate a water flow control mechanism. The control bar is located at the front of the fountain. The control bar covers the entirety of the front of the fountain, providing the user clear access to the control bar without obstruction by any other part of the fountain when the fountain is approached at its front. The control bar operates a valve which controls water flow. The embodiment of the control bar and associated mechanisms for controlling the valve may be entirely mechanical, entirely electrical, or a combination of the two. The control bar may additionally be provided with a surface which is sensuously differentiable from the rest of the fountain.
    Type: Grant
    Filed: March 26, 1994
    Date of Patent: October 17, 1995
    Assignee: The Research Foundation of State University of New York
    Inventors: Abir Mullick, Michael Osadciw, Michael F. LaMonica, Matthew C. Guthrie
  • Patent number: 5447178
    Abstract: The present invention provides an air valve (10) for inflating and deflating an inflatable. The air valve (10) includes a housing floor (16) with air ports (36, 38), and a slide bar (12) with an air passageway (54) formed therein. The slide bar (12) is supported on the floor (16) by seal rings (92) surrounding the ports (36, 38) and is biased into a center position by a spring (94) positioned in a spring well (28) in the slide bar (12) or the floor (16). Pins (50, 52) project into the spring well (28) and engage opposite ends of the spring (94). A stem extends from a tilt button (66) into a socket (48) on the slide bar (12). When the button (66) is tilted, it moves the slide bar (12), compressing the spring (94) and aligning the ports (36, 38) and the passageway (54) to allow air to pass through the valve (10). The slide bar (12) is prevented from tilting by a stabilizer frame (82) or housing shoulders (220).
    Type: Grant
    Filed: January 7, 1994
    Date of Patent: September 5, 1995
    Assignee: GT Development Corporation
    Inventors: Denny Gabrlik, John M. Morris
  • Patent number: 5384919
    Abstract: A conventional toilet includes a bowl having a bowl interior supported upon a base and having a rectangular flush tank supplied from a conventional water supply. The bowl portion supports a conventional toilet seat having a center hole and a hinged attachment to the seat support portion of the bowl. A toilet seat supported bidet includes an elongated nozzle pipe having an upwardly directed nozzle pivotally supported on the underside of the toilet seat such that the nozzle water flow extends upwardly through the hole in the toilet seat. A slide valve is coupled to the nozzle pipe and is operated by a pivotal handle. A supply of heated water is coupled to the slide valve from a source of water under pressure. A pair of friction clips secure the nozzle pipe to the undersurface of the toilet seat in a frictional pivotal attachment to facilitate the angular movement of the nozzle pipe to affect angular motion of the nozzle.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: January 31, 1995
    Inventor: W. Fred Smith
  • Patent number: 5044171
    Abstract: A counter with internal carbonated beverage dispenser is disclosed. A counter with a bottom platform, a refrigerating unit disposed on the bottom platform and under the counter, a mixing drum disposed on the bottom platform and under the counter, and a carbon dioxide cylinder disposed on the bottom platform and under the counter so that all of the unsightly components are hid under the counter.
    Type: Grant
    Filed: November 6, 1989
    Date of Patent: September 3, 1991
    Inventor: Eli Farkas
  • Patent number: 5033509
    Abstract: A water flow control device comprising a water flow control system controlled to operate by a timer system. The timer system comprises a timer fastened in a control wheel mounted on a mounting table for time setting. The water flow control system comprises a control tube fastened in a trough with both ends respectively connected with water inlet and outlet pipes. A spirng is sleeved on the control tube to constantly force the control tube to press on a stop cap which releasably block up the water passage of the water inlet pipe. A driving plate is pivoted to the trough and controlled by the mounting table through the timer to carry the control tube backward permitting the stop cap to open the water passage so that water is allowed to pass through the control tube into the water outlet pipe.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: July 23, 1991
    Inventor: Chen-Hsien Tsai
  • Patent number: 4936341
    Abstract: A pressure regulator for independent automobile heater fuel lines, particularly for connection upstream of a dosing pump. The pressure regulator includes an upper housing portion, and a lower housing portion which are connected together with a diaphragm being disposed between the upper housing portion and the lower housing portion. The diaphragm operates with the upper housing portion to form an air space and cooperates with the lower housing portion to define a pressure regulation space. An adjusting lever is positioned within the pressure regulation space attached to an adjusting piece which in turn is attached to the diaphragm. An inlet is provided opening into the pressure regulation space and an outlet is provided leading to a dosing pump or the like. A control member is positioned within the inlet having a sealing ring about it. The control member has a cylindrical shaft portion which is slightly smaller than a boring in the inlet connection.
    Type: Grant
    Filed: February 23, 1989
    Date of Patent: June 26, 1990
    Assignee: J. Eberspacher
    Inventor: Wolfgang Mayer
  • Patent number: 4898130
    Abstract: A valve mechanism includes a poppet type valve, a valve lever pivotally mounted at one end and attached at the other end to the end of the stem of the valve, the valve lever defines a track in which is located a drive pin and a drive mechanism is arranged to drive the drive pin in oscillatory manner; the track has a first portion which, when the valve is closed is engaged by the drive pin and coincides with the path of the drive pin, and a second portion which diverges from the path of the drive pin so that when engaged by the drive pin movement of the drive pin will cause the valve lever to move, opening and closing the valve. Preferably the mean position of oscillation of the drive pin is adjustable so that the duration and amplitude of valve opening may be varied.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: February 6, 1990
    Assignee: Jaguar Cars Limited
    Inventor: Bryan N. V. Parsons
  • Patent number: 4633900
    Abstract: A constant airflow control apparatus is connected to an air duct of an air conditioning system to keep the flow rate of air fed from the air duct constant. The apparatus comprises a rectangular pressure receiving plate slidably mounted on a guide shaft extending in one direction inside a passage of a housing. The plate extends substantially at right angles to the central axis of the housing so as to block part of the cross section of the passage. The apparatus further comprises a coil spring for urging the plate against the flow of the air, and two swinging plates swingably attached to two opposite side edges of the pressure receiving plate, individually. The swinging plates are adapted to change the cross-section area of an air passage defined between the swinging plates and the inner surface of the housing in a mode represented by a quadratic curve in accordance with a rectilinear change of the pressure of the air.
    Type: Grant
    Filed: March 8, 1985
    Date of Patent: January 6, 1987
    Assignee: Topre Corporation
    Inventor: Hikoshiro Suzuki
  • Patent number: 4607795
    Abstract: A spray head assembly is made from a very few number of injection molded parts. Preferably a pair of elongated housing shells fit together in face-to-face confrontation, with a spring biased actuator arm or control lever pivotally mounted between them. The lever has a metal shaft extending therefrom, which passes through a flexible cone in a rubber bulkhead to maintain a waterproof seal. In front of the bulkhead is a solid plastic plate having mounted therein a reciprocally slidable member controlled by the lever. In one embodiment, the sliding member contains a generally triangular or tapered opening or openings having a sector of a circle for a base. Depending upon the position of the slide, the opening moves up or down to open or close a water passageway through the spray head. The sliding member first presents the smaller sectors of the opening or openings to an associated sealing ring to minimize the abruptness of any change in discontinuity of water flow at the edge of the opening.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: August 26, 1986
    Assignee: Amco Corporation
    Inventors: Ralph Ettlinger, John A. Biela
  • Patent number: 4606369
    Abstract: A manually-operable pressure-regulating valve device, including a special handle mechanism and a self-lapping valve assembly having a feedback piston on which delivery pressure acts to urge the valve assembly actuating stem in a direction opposite handle pressure, thereby transmitting to the operator a "feel" of the effective delivery pressure. The handle mechanism includes an elongated lever for operating the self-lapping unit with mechanical advantage to reduce operator fatigue. The elongated lever is made flexible, so that movement of the self-lapping valve assembly toward lap position, following actuation thereof, is absorbed by flexure of the elongated lever in order to, in effect, isolate the handle from the self-lapping unit in terms of movement without losing handle "feel" of the delivery pressure acting on the self-lapping valve assembly.
    Type: Grant
    Filed: July 1, 1985
    Date of Patent: August 19, 1986
    Assignee: WABCO Ltd.
    Inventor: Albert A. McKay
  • Patent number: 4527743
    Abstract: A spray head assembly is made primarily from a very few number of injection molded parts. Preferably a pair of elongated housing shells fit together in face-to-face confrontation, with a spring biased actuator arm or control lever pivotally mounted between them. The lever has a metal shaft extending therefrom, which passes through a flexible cone in a rubber bulkhead to maintain a waterproof seal. In front of the bulkhead is a solid plastic plate having mounted therein a reciprocally slidable member controlled by the lever. The sliding member contains a generally triangular or tapered opening having a sector of a circle for a base. Depending upon the position of the slide, the opening moves up or down to open or close a water passageway through the spray head. The sliding member first presents the apex of the opening to an associated sealing ring to minimize the abruptness of any change in discontinuity of water flow at the edge of the opening.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: July 9, 1985
    Assignee: Amco Corporation
    Inventors: Ralph Ettlinger, John A. Biela
  • Patent number: 4411845
    Abstract: An improved throttle valve assembly of the type which includes a throttle body provided with a throttle lever and a second, intermediate lever interconnected with each other by a roller/cam slot mechanism, said throttle lever being adapted to be moved by said second lever which is connected through the throttle linkage to the accelerator. The improvement comprises means disposed between the throttle lever and the second lever for adjusting the clearance existing between the cam slot and roller when the throttle valve is located in the vicinity of the idle position thereof, so that the excessive play that would otherwise arise at the accelerator when the throttle valve is in the idle position is reduced or avoided.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: October 25, 1983
    Assignees: Nippondenso Co., Ltd., Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Toshio Tanahashi, Sinya Sumitani, Takeo Matuura, Shinji Ichikawa, Takao Okuno
  • Patent number: 4379544
    Abstract: A trip mechanism for a trip valve is made up of a reset lever and a bell crank operatively connected through a guide stem which is guidingly received in a flange portion of the valve housing. A valve stem and the guide stem are slidably connected to the reset lever which is provided with a spring bias which tends to move the reset lever in a valve closing position. When the bell crank and guide stem are in engagement the valve is held open and when the bell crank is subjected to an actuating force the bell crank and guide stem become disengaged causing the valve to close under the spring bias and to remain closed until manually reset.
    Type: Grant
    Filed: May 1, 1981
    Date of Patent: April 12, 1983
    Assignee: Elliott Turbomachinery Company, Inc.
    Inventors: Eugene V. Angelo, Prem Pratap