Patents Assigned to Cla-Val Co.
  • Publication number: 20190316700
    Abstract: A valve device includes a metal valve body defining a water passageway between an inlet and an outlet of the body. A valve seat of a different material than the valve body is insert-cast molded integral with the valve body. The configuration of the valve seat and the mass of the valve body surrounding the seat being sufficiently large reduces a chilling effect during molding such that a pressure-tight and waterproof interface is formed between adjacent surfaces of the valve body and the valve seat.
    Type: Application
    Filed: April 12, 2018
    Publication date: October 17, 2019
    Applicant: Cla-Val Co.
    Inventors: Martin W. Pickett, Robert Lewis Ogden, JR., David Rose, Robert Folk, Ryan W. Pickett
  • Patent number: 9249896
    Abstract: 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 apparatus. Fluid is passed through a fixed orifice and into a first chamber of the control pilot valve apparatus. Fluid is passed through the variable orifice of the variable orifice assembly and into a second chamber of the control pilot valve apparatus. The main valve is hydraulically opened or closed in response to a pressure differential between the first and second chambers of the control pilot valve apparatus so as to manage fluid pressure downstream of the main valve between the selected upper and lower set points.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: February 2, 2016
    Assignee: CLA-VAL CO.
    Inventor: Robert Folk
  • Patent number: 9010371
    Abstract: An anti-cavitation seat which is disposable between an inlet and an outlet of a pressure reducing valve, and including a plurality of inlets causing fluid to flow into a converging pathway to reduce pressure of the fluid. The inlets form a tortuous path for a portion of the fluid flowing into the anti-cavitation seat, so as to further reduce the pressure of the fluid. A standard stem assembly is used in conjunction with the anti-cavitation seat to alter the flow of fluid through the valve.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: April 21, 2015
    Assignee: Cla-Val Co.
    Inventors: Robert Folk, David Becker
  • Publication number: 20140174562
    Abstract: 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 apparatus. Fluid is passed through a fixed orifice and into a first chamber of the control pilot valve apparatus. Fluid is passed through the variable orifice of the variable orifice assembly and into a second chamber of the control pilot valve apparatus. The main valve is hydraulically opened or closed in response to a pressure differential between the first and second chambers of the control pilot valve apparatus so as to manage fluid pressure downstream of the main valve between the selected upper and lower set points.
    Type: Application
    Filed: March 3, 2014
    Publication date: June 26, 2014
    Applicant: CLA-VAL CO.
    Inventor: Robert Folk
  • Patent number: 8714028
    Abstract: A fluid flow meter includes a fitting attachable to a waterworks valve or pipeline so as to extend at least partially through an insertion aperture thereof. A measurement cylinder is pivotally attached to the fitting, and includes a fluid vortex generating obstruction. A sensor body extends through the fitting and has a sensor element at an end thereof disposed in the measurement cylinder and generally aligned with the obstruction to detect fluid vortices generated by the obstruction. The measurement cylinder is selectively movable from a position generally aligned with the fitting, to a position generally parallel to the fluid flowing through the valve or pipeline.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: May 6, 2014
    Assignee: CLA-VAL Co.
    Inventor: Daniel Ré
  • Patent number: 8695630
    Abstract: 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 apparatus. Fluid is passed through a fixed orifice and into a first chamber of the control pilot valve apparatus. Fluid is passed through the variable orifice of the variable orifice assembly and into a second chamber of the control pilot valve apparatus. The main valve is hydraulically opened or closed in response to a pressure differential between the first and second chambers of the control pilot valve apparatus so as to manage fluid pressure downstream of the main valve between the selected upper and lower set points.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: April 15, 2014
    Assignee: CLA-Val Co.
    Inventor: Robert Folk
  • Patent number: 8550101
    Abstract: 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 apparatus. Fluid is passed through a fixed orifice and into a first chamber of the control pilot valve apparatus. Fluid is passed through the variable orifice of the variable orifice assembly and into a second chamber of the control pilot valve apparatus. The main valve is hydraulically opened or closed in response to a pressure differential between the first and second chambers of the control pilot valve apparatus so as to manage fluid pressure downstream of the main valve between the selected upper and lower set points.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: October 8, 2013
    Assignee: Cla-Val Co.
    Inventor: Robert Folk
  • Publication number: 20130153808
    Abstract: An anti-cavitation seat which is disposable between an inlet and an outlet of a pressure reducing valve, and including a plurality of inlets causing fluid to flow into a converging pathway to reduce pressure of the fluid. The inlets form a tortuous path for a portion of the fluid flowing into the anti-cavitation seat, so as to further reduce the pressure of the fluid. A standard stem assembly is used in conjunction with the anti-cavitation seat to alter the flow of fluid through the valve.
    Type: Application
    Filed: November 29, 2012
    Publication date: June 20, 2013
    Applicant: CLA-VAL CO.
    Inventor: CLA-VAL CO.
  • Patent number: 8381761
    Abstract: An adjustable hydraulically operated pressure management control pilot assembly has first and second diaphragm assemblies which define two fluid pressure chambers. Varying the pressure between these two fluid chambers modulates the control pilot assembly between adjusted low and high set points, which can be used to control high and low pressures downstream of a pressure reducing valve of a water supply system.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: February 26, 2013
    Assignee: CLA-VAL Co.
    Inventor: Daniel Ré
  • Patent number: 8276612
    Abstract: A system and method for controlling fluid pressure downstream a main valve includes associating a variable orifice with the main valve such that the variable orifice opens as the main valve is opened and closes as the main valve is closed. A fluid stream taken from a fluid inlet of the main valve is passed to an inlet of the variable orifice. A fixed orifice is in fluid communication with an outlet of the variable orifice. A pressure differential between the inlet and outlet of a fixed orifice is detected by a control pilot device, which hydraulically opens or closes the main valve in response to the detected fixed orifice pressure differential between low pressure and high pressure set points.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: October 2, 2012
    Assignee: CLA-VAL, Co.
    Inventor: Robert Folk
  • Publication number: 20120086204
    Abstract: A system for generating electricity in a water distribution network includes a hydroelectric generator in fluid communication with a pipeline or a valve of the network. A differential pressure control pilot limits differential pressure across the hydroelectric generator. A solenoid coupled to the differential control pilot controls water passage through the differential control pilot, and thus the operation of the hydroelectric generator. An electronic controller may be used to optimize power generated by the hydroelectric generator.
    Type: Application
    Filed: October 7, 2011
    Publication date: April 12, 2012
    Applicant: CLA-VAL CO.
    Inventor: Daniel Ré
  • Publication number: 20120012199
    Abstract: 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 apparatus. Fluid is passed through a fixed orifice and into a first chamber of the control pilot valve apparatus. Fluid is passed through the variable orifice of the variable orifice assembly and into a second chamber of the control pilot valve apparatus. The main valve is hydraulically opened or closed in response to a pressure differential between the first and second chambers of the control pilot valve apparatus so as to manage fluid pressure downstream of the main valve between the selected upper and lower set points.
    Type: Application
    Filed: September 22, 2011
    Publication date: January 19, 2012
    Applicant: CLA-VAL CO.
    Inventor: Robert Folk
  • Publication number: 20120006418
    Abstract: A system and method for controlling fluid pressure downstream a main valve includes associating a variable orifice with the main valve such that the variable orifice opens as the main valve is opened and closes as the main valve is closed. A fluid stream taken from a fluid inlet of the main valve is passed to an inlet of the variable orifice. A fixed orifice is in fluid communication with an outlet of the variable orifice. A pressure differential between the inlet and outlet of a fixed orifice is detected by a control pilot device, which hydraulically opens or closes the main valve in response to the detected fixed orifice pressure differential between low pressure and high pressure set points.
    Type: Application
    Filed: September 22, 2011
    Publication date: January 12, 2012
    Applicant: CLA-VAL CO.
    Inventor: Robert Folk
  • Publication number: 20120006417
    Abstract: 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 apparatus. Fluid is passed through a fixed orifice and into a first chamber of the control pilot valve apparatus. Fluid is passed through the variable orifice of the variable orifice assembly and into a second chamber of the control pilot valve apparatus. The main valve is hydraulically opened or closed in response to a pressure differential between the first and second chambers of the control pilot valve apparatus so as to manage fluid pressure downstream of the main valve between the selected upper and lower set points.
    Type: Application
    Filed: September 22, 2011
    Publication date: January 12, 2012
    Applicant: CLA-VAL CO.
    Inventor: Robert Folk
  • Publication number: 20120006413
    Abstract: 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 apparatus. Fluid is passed through a fixed orifice and into a first chamber of the control pilot valve apparatus. Fluid is passed through the variable orifice of the variable orifice assembly and into a second chamber of the control pilot valve apparatus. The main valve is hydraulically opened or closed in response to a pressure differential between the first and second chambers of the control pilot valve apparatus so as to manage fluid pressure downstream of the main valve between the selected upper and lower set points.
    Type: Application
    Filed: September 22, 2011
    Publication date: January 12, 2012
    Applicant: CLA-VAL CO.
    Inventor: Robert Folk
  • Patent number: 8091582
    Abstract: 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 apparatus. Fluid is passed through a fixed orifice and into a first chamber of the control pilot valve apparatus. Fluid is passed through the variable orifice of the variable orifice assembly and into a second chamber of the control pilot valve apparatus. The main valve is hydraulically opened or closed in response to a pressure differential between the first and second chambers of the control pilot valve apparatus so as to manage fluid pressure downstream of the main valve between the selected upper and lower set points.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: January 10, 2012
    Assignee: CLA-VAL Co.
    Inventor: Robert Folk
  • Publication number: 20110209559
    Abstract: A fluid flow meter includes a fitting attachable to a waterworks valve or pipeline so as to extend at least partially through an insertion aperture thereof. A measurement cylinder is pivotally attached to the fitting, and includes a fluid vortex generating obstruction. A sensor body extends through the fitting and has a sensor element at an end thereof disposed in the measurement cylinder and generally aligned with the obstruction to detect fluid vortices generated by the obstruction. The measurement cylinder is selectively movable from a position generally aligned with the fitting, to a position generally parallel to the fluid flowing through the valve or pipeline.
    Type: Application
    Filed: February 28, 2011
    Publication date: September 1, 2011
    Applicant: CLA-VAL CO.
    Inventor: Daniel Ré
  • Publication number: 20110132479
    Abstract: A bi-directional valve system for an aquifer thermal energy storage system includes a hydraulic control valve fluidly connected to the aquifer pump and pipeline. A control pump is selectively actuated to hydraulically open and close fluid outlets of the hydraulic control valve. When the fluid outlets are closed, a full flow of water can be pumped from the aquifer, or pressure in the pipeline of the system maintained or increased. However, when the fluid pressure needs to be reduced or water reintroduced into the aquifer, the fluid outlets of the hydraulic control valve are selectively opened.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 9, 2011
    Applicant: CLA-VAL CO.
    Inventor: Daniel Ré
  • Publication number: 20100294970
    Abstract: An adjustable hydraulically operated pressure management control pilot assembly has first and second diaphragm assemblies which define two fluid pressure chambers. Varying the pressure between these two fluid chambers modulates the control pilot assembly between adjusted low and high set points, which can be used to control high and low pressures downstream of a pressure reducing valve of a water supply system.
    Type: Application
    Filed: May 18, 2010
    Publication date: November 25, 2010
    Applicant: CLA-VAL CO.
    Inventor: Daniel Ré
  • Publication number: 20100071787
    Abstract: A system for hydraulically managing fluid pressure in a fluid distribution system between pressure set points includes a main valve having a fluid inlet and outlet. The main valve is configured to open to increase fluid flow therethrough and to close to reduce the fluid flow therethrough. A variable orifice assembly is coupled to the main valve and has fluid apertures formed in a housing thereof to create a fluid flow pathway therebetween. A valve stem is variably positioned within the housing to alter the fluid flow between the fluid apertures. A first control pilot is in fluid communication with the main valve and a first fluid aperture of the variable orifice assembly. A second control pilot is in fluid communication with the main valve and a second fluid aperture of the variable orifice assembly. The valve position and fluid flow are variable as the main valve opens and closes.
    Type: Application
    Filed: November 24, 2009
    Publication date: March 25, 2010
    Applicant: CLA-VAL CO.
    Inventors: Robert Folk, Daniel Ré