Relatively Movable Serial Distributors Patents (Class 417/456)
  • Patent number: 11772112
    Abstract: A dispensing pump capable of withstanding the rigors of “e-commerce” shipping conditions is described. The pump dispenser is integrated with the container's closure. The pump includes a lock-down mechanism to prevent the pump actuator from extending during shipment, while a vented chaplet and an optional beaded seal proximate to the dip tube connection ensure that fluid cannot leak out of the container or the pump.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: October 3, 2023
    Inventor: Gaurang Mittal
  • Patent number: 10174752
    Abstract: Method and apparatus overcoming gas-lock in reciprocating downhole pumps. On the downstroke of a plunger in a barrel, gassy fluid is compressed in the pump chamber between standing and travelling valves. Downhole plunger movement drags a sleeve over a mandrel for opening a chamber valve to a staging chamber located at a downhole end of the travelling valve for receiving at least a portion of the compressed and gassy fluid therein. On the upstroke, the chamber valve is dragged closed for sealably retaining the compressed gassy fluid therein while drawing an additional increment of fluid through the standing valve into the pump chamber. Continued downstroke and upstroke cycles increases pressure of the compressed gassy fluid in the pump chamber until it exceeds the hydrostatic head above the travelling valve for resumption of normal fluid pumping.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: January 8, 2019
    Assignee: Innovative Oilfield Consultants LTD Operating as Conn Pumps
    Inventor: Donald R Downing
  • Patent number: 9649194
    Abstract: A medical device for implantation in a hip joint of a patient is provided. The hip joint has a caput femur integrated with a collum femur having a collum and caput center axis, extending longitudinal along the collum and caput femur, in the center thereof. The medical device comprises an elongated portion adapted to at least partially replace the collum femur. The elongated portion is adapted to be connected to a prosthetic spherical portion adapted to replace the caput femur. The prosthetic spherical portion in turn is adapted to be movably placed in a prosthetic replacement for the acetabulum comprising at least one extending portion adapted to clasp said prosthetic spherical portion. The elongated portion comprises a restricting portion adapted to restrict the motion range of the spherical portion in relation to said prosthetic replacement for the acetabulum.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: May 16, 2017
    Inventor: Peter Forsell
  • Publication number: 20140178225
    Abstract: Pump assemblies for use with a subsurface fluid reservoir include an upper barrel connected to a fluid filled conduit extending to the surface, a lower barrel connected to the upper barrel and in fluid communication with the reservoir, and a plunger assembly movably located within the upper and lower barrels. As the fluid pressure within production tubing, external to the pump assembly, increases, movement of the plunger draws fluid into the pump. As the fluid pressure within the production tubing decreases, the plunger pushes fluid into the production tubing.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Inventor: John Bradford, JR.
  • Publication number: 20130243630
    Abstract: Reciprocating fluid pumps include a pump body including a cavity therein, a plunger located at least partially within the cavity, and a shift canister assembly disposed within the cavity. The shift canister assembly includes a sealing surface for forming a seal against the pump body. An area covered by the seal between the sealing surface and the pump body is less than about 75% of an outer cross-sectional area of the shift canister assembly. The shift canister assembly may include a shift canister and a shift canister cap attached thereto, the shift canister cap comprising the sealing surface. Reciprocating fluid pumps include a shift canister, a shift piston at least partially disposed within the shift canister, and a shift canister cap attached to the shift canister on a longitudinal end of the shift canister opposite the shift piston. Methods include forming such reciprocating pumps.
    Type: Application
    Filed: March 15, 2012
    Publication date: September 19, 2013
    Inventors: John M. Simmons, Tom M. Simmons, Kenji Allen Kingsford, David M. Simmons
  • Patent number: 8342823
    Abstract: Disclosed is a sludge suction apparatus for an offshore structure. The sludge suction apparatus includes a housing having an upper mounting hole and a lower mounting hole; a suction valve installed in the lower mounting hole in line with a suction hole to selectively suck sludge according to variation of internal pressure of the housing; an exhaust valve installed in the upper mounting hole to communicate with the exhaust hole and aligned coaxially with the suction valve to exhaust the sludge to an outside through the exhaust hole; a valve port coupled to an upper portion of the upper mounting hole and formed with a fixing groove coupled with an upper portion of the exhaust valve; and a piston assembly fixedly coupled with the coupling section and reciprocated in forward and rearward directions to operate the suction valve and the exhaust valve.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: January 1, 2013
    Assignee: Korea Institute of Geoscience and Mineral Resources
    Inventors: Young-Ju Kim, Deok Hwan Kim, So Keul Chung, Nam-Sub Woo
  • Patent number: 8328528
    Abstract: A sucker rod pump with no travelling valve consisting of, from the bottom: hold down with pump inlet, lower standing valve, hollow coupling, upper standing valve suspended within the coupling, relief valve, hollow pump housing, solid piston within the housing, and barrel to clean and retain the piston in the housing. The piston attaches to and reciprocating with the rod string. Peripheral channels in the relief valve communicate between the coupling and the housing. A central channel in the relief valve communicates between the upper standing valve and the pump's outlets. The upstroke pulls fluid from the bottom of the well upward through the open lower standing valve, around the closed upper standing valve and into the housing chamber. The down stroke pushes fluid from the housing chamber past the closed lower standing valve and through the open upper standing valve to the pump's exit into the tubing.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: December 11, 2012
    Assignee: Thompson Pump Company
    Inventor: Charles Gene Fisher
  • Patent number: 8192181
    Abstract: A sucker rod pump with no travelling valve consisting of, from the bottom: hold down with pump inlet, lower standing valve, hollow coupling, upper standing valve suspended within the coupling, relief valve, hollow pump housing, solid piston within the housing, and barrel to clean and retain the piston in the housing. The piston attaches to and reciprocating with the rod string. Peripheral channels in the relief valve communicate between the coupling and the housing. A central channel in the relief valve communicates between the upper standing valve and the pump's outlets. The upstroke pulls fluid from the bottom of the well upward through the open lower standing valve, around the closed upper standing valve and into the housing chamber. The down stroke pushes fluid from the housing chamber past the closed lower standing valve and through the open upper standing valve to the pump's exit into the tubing.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: June 5, 2012
    Assignee: Thompson Pump Company
    Inventor: Charles Gene Fisher
  • Patent number: 8006325
    Abstract: A pumped shower drain system (10) comprises a shower base (12), a waste water unit (14) provided on the shower base (12) and having a waste water inlet (28) and a waste water outlet (30), and a reciprocating water pump (20) for pumping water from the waste water unit (14) to a drain (22). The reciprocating water pump (20) includes: a pump housing (40) having a pump inlet (48) in liquid communication with the waste water outlet (30) of the waste water unit (14), and a pump outlet (50) in liquid communication with the drain (22); first and second inlet valve seals (56, 58) in spaced relationship; and first and second outlet valve seals (84, 86) in spaced relationship. Each set of inlet and outlet valve seals comprise different kinds of valve seals from each other, and are independently closable to close the pump inlet or outlet. Preferably, the inlet valve seals and/or the outlet valve seals have different modes of operation.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: August 30, 2011
    Assignee: DLP Limited
    Inventors: Robert William Stimpson, Graham Robin Lock, James Edward Self
  • Publication number: 20100215528
    Abstract: A sucker rod pump with no travelling valve consisting of, from the bottom: hold down with pump inlet, lower standing valve, hollow coupling, upper standing valve suspended within the coupling, relief valve, hollow pump housing, solid piston within the housing, and barrel to clean and retain the piston in the housing. The piston attaches to and reciprocating with the rod string. Peripheral channels in the relief valve communicate between the coupling and the housing. A central channel in the relief valve communicates between the upper standing valve and the pump's outlets. The upstroke pulls fluid from the bottom of the well upward through the open lower standing valve, around the closed upper standing valve and into the housing chamber. The down stroke pushes fluid from the housing chamber past the closed lower standing valve and through the open upper standing valve to the pump's exit into the tubing.
    Type: Application
    Filed: February 24, 2009
    Publication date: August 26, 2010
    Inventor: Charles Gene Fisher
  • Patent number: 6755628
    Abstract: The invention is a component of a subsurface traveling barrel bottom anchor pump comprising a traveling valve assembly which includes: a cylindrical valve body having a lower section, the lower section having a central bore therethrough and external threads which interact with a threaded connection on a traveling barrel to removably attach the valve body to the traveling barrel; an upper section having a rod connection externally threaded for attachment to a pumping rod; a center section having a fishing neck portion and cage portion; a valve cage accommodated entirely within the internal portion of the cage portion; a valve ball positioned within the valve cage; a valve seat abutting the valve cage; and a ball and seat plug threaded into the lower section of the valve body for retaining the valve seat in the valve body.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: June 29, 2004
    Assignee: Howell's Well Service, Inc.
    Inventor: Kenneth Howell
  • Patent number: 6007314
    Abstract: Disclosed is a standing valve containing a ball, in which during operation, the ball is moved by ball guides to a position off center and yet not impinged against the valve, and in which unequal fluid flow areas are created around the horizontal circumference of the ball. Further disclosed are pumps utilizing such a standing valve.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: December 28, 1999
    Inventor: Joe A. Nelson, II
  • Patent number: 5893708
    Abstract: Disclosed is an assembly for unseating a seated traveling valve ball, and pumps utilizing such an assembly. The assembly generally includes a tubular member having therein a piston with an actuator for engaging the ball. Mechanical advantage is provided either by providing a sealing area of the piston that is greater than the sealing area of the seat valve and/or by providing a engaging member suitable to strike to seated ball asymmetrically with respect to the vertical axis through the center line of the ball.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: April 13, 1999
    Inventor: Joe A. Nelson, II
  • Patent number: 5628624
    Abstract: Disclosed is an assembly for unseating a seated traveling valve ball, and pumps utilizing such an assembly. The assembly generally includes a tubular member having therein a piston with an actuator for engaging the ball. Mechanical advantage is provided either by providing a sealing area of the piston that is greater than the sealing area of the seat valve and/or by providing a engaging member suitable to strike to seated ball asymmetrically with respect to the vertical axis through the center line of the ball.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: May 13, 1997
    Inventor: Joe A. Nelson, II
  • Patent number: 5533876
    Abstract: Disclosed is an assembly for unseating a seated traveling valve ball, and pumps utilizing such an assembly. The assembly generally includes a tubular member having therein a piston with an actuator for engaging the ball. Mechanical advantage is provided either by providing a sealing area of the piston that is greater than the sealing area of the seat valve and/or by providing a engaging member suitable to strike to seated ball asymetrically with respect to the vertical axis through the center line of the ball.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: July 9, 1996
    Inventor: Joe A. Nelson, II
  • Patent number: 4629402
    Abstract: An improved submersible pump valve assembly, actuated by the reciprocating movement of a sucker rod extended from surface equipment to a downhole traveling valve located in a tubing string, the valve assembly comprising a rotatable fluid port assembly supported in a barrel assembly which has a beveled seating surface with fluid ports therethrough. A reciprocatable actuator member having a screw rod portion coacts with a gear bore of the fluid port assembly to open the fluid ports thereof during the downstroke movement of the actuator member and to close the fluid ports during the upstroke movement. Also, the actuator member opens and closes the fluid ports of the barrel assembly alternately during its downstroke and upstroke positions, respectively. A middle rod connector, which connects the actuator to the sucker rod, has multiple fluid jetting ports which serve to agitate particulates in the reservoir liquids being pumped.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: December 16, 1986
    Assignee: Lift Technology, Inc.
    Inventor: Dennis L. Marshala
  • Patent number: 4599054
    Abstract: A travelling valve assembly for use in a sucker rod actuated fluid pump includes a ball valve actuator which engages the ball valve during the downstroke of the sucker rod to force the ball valve into an open fluid transmitting relationship with respect to its valve seat.
    Type: Grant
    Filed: August 23, 1984
    Date of Patent: July 8, 1986
    Inventor: Harry L. Spears
  • Patent number: 4534715
    Abstract: A traveling valve assembly is provided for use in subsurface gravity type pumping systems and is responsive to reciprocating motion to manipulate a rotary valve head relative to a valve seat between open and closed positions, and to fluid pressure to manipulate a ball member and a slidable seal member relative to seat members between open and closed positions. Reciprocating motion is converted to rotary motion by means of a journaled spiral groove portion of the rotary valve member. The traveling valve assembly is provided with multiple seals to prevent high pressure gas from blowing through the pump when pumping oil.
    Type: Grant
    Filed: August 17, 1983
    Date of Patent: August 13, 1985
    Inventor: Roy C. Jones
  • Patent number: 4531896
    Abstract: A fluid pump for raising petroleum fluids through production tubing in completed oil wells includes a mechanically actuated travelling valve, which is rotated via longitudinal movement within the housing of a travelling valve actuator member.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: July 30, 1985
    Inventor: Harry L. Spears
  • Patent number: 4504199
    Abstract: A fluid pump for raising petroleum fluids through production tubing in completed oil wells includes two mechanically actuated valves, one of which moves longitudinally within the pump housing, and the other valve which rotates within the pump housing.
    Type: Grant
    Filed: April 21, 1983
    Date of Patent: March 12, 1985
    Inventor: Harry L. Spears
  • Patent number: 4413548
    Abstract: A radial or axial piston type hydraulic motor has a plurality of cylinders connected by pressure conduits to a pressure fluid distributor. A check valve spring-biased in closing direction is built in at least one pressure conduit and has a first surface portion acted upon by pressure from the cylinder, a second surface portion which is exposable to pressure fluid from the distributor to act on the check valve either in opening direction or in closing direction and a third surface portion exposed to a control pressure in opening direction. The second surface portion being at least as large as the first surface portion and larger than the third surface portion, and the combined area of the first and second surface portions exceeding the surface area of the second surface portion.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: November 8, 1983
    Assignee: G. Dusterloh GmbH
    Inventors: Jurgen Klie, Walter Lubos, Wilhelm Flieter
  • Patent number: 4277228
    Abstract: A radial piston pump comprises a housing bounding a suction chamber therein and at least one valve piston unit mounted in the housing. The valve piston unit includes a pressure valve defining a pressure chamber, a movable piston having an axial passage operatively communicating the suction chamber with the pressure chamber, and a suction valve located in the axial passage of the piston. The suction valve is operative for opening and closing the axial passage of the piston so as to establish and interrupt the above communication, respectively. The piston performs a suction stroke and a working stroke, and a valve member of the suction valve is open during the suction stroke of the piston. The valve member has such a mass that it is opened by an accelerative force produced during the above suction stroke of the piston. The piston is moved by an eccentric mounted on a rotatable shaft, which eccentric has a circumferential groove operatively communicating the suction chamber with the axial passage of the piston.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: July 7, 1981
    Assignee: G. L. Rexroth GmbH
    Inventor: Jorg Dantlgraber
  • Patent number: 4201170
    Abstract: A diesel fuel injection system having a positive displacement fuel delivery valve with a valve piston with a conventional passage for delivering fuel to injection nozzles and a second more restricted passage at an intermediate axial position of the valve piston for delivering such fuel at lower pumping rates, such as during low speed engine cranking, so that the valve piston is displaced a lesser amount at lower pumping rates and thereby increase the downstream residual fuel pressure when the pumping rate is lower.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: May 6, 1980
    Assignee: Stanadyne, Inc.
    Inventor: Norbert W. Overfield
  • Patent number: 4083346
    Abstract: A fuel injection valve for an internal combustion engine includes a fuel storage compartment and a pressure chamber from which a reciprocating pump piston delivers fuel to the engine's fuel lines. The fuel conduit between the storage compartment and the pressure chamber can be closed off by an electromagnetic valve. To permit engine operation even when the electrical system is non-functional, the magnetic valve is of the normally open type, held open by a spring. In the energized state, the valve closes off the fuel conduit and its closure is aided by the fuel pressure gradient across the valve.
    Type: Grant
    Filed: January 27, 1976
    Date of Patent: April 11, 1978
    Assignee: Robert Bosch GmbH
    Inventor: Franz Eheim
  • Patent number: 4073277
    Abstract: A fuel injection pump for internal combustion engines has a simultaneously reciprocating and rotating pump piston which aspirates fuel from a fuel compartment and then delivers it under pressure to engine fuel lines. An electromagnetic valve can obturate the conduit between the fuel compartment and the pressure chamber of the pump, thereby shutting off fuel delivery. To permit manual override of this shut-off, the electromagnetic valve may be partially unscrewed from the pump housing, thereby lifting the valve closing member from its seat and permitting fuel flow. In another version, an externally accessible central valve bolt partially lifts the valve-closing member from its seat.
    Type: Grant
    Filed: January 27, 1976
    Date of Patent: February 14, 1978
    Assignee: Robert Bosch GmbH
    Inventor: Franz Eheim