Robert Lee Folk

US Patent:

8091582, Jan 10, 2012

Filed:

Oct 29, 2007

Appl. No.:

11/927474

Inventors:

Robert Folk - Costa Mesa CA, US

Assignee:

CLA-VAL Co. - Costa Mesa CA

International Classification:

F16K 31/365

US Classification:

137489, 251 29, 251 35

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.

US Patent:

8276612, Oct 2, 2012

Filed:

Sep 22, 2011

Appl. No.:

13/240077

Inventors:

Robert Folk - Costa Mesa CA, US

Assignee:

CLA-VAL, Co. - Costa Mesa CA

International Classification:

F16K 31/12
F16K 31/36

US Classification:

13750514, 137489, 13750544

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.

US Patent:

8550101, Oct 8, 2013

Filed:

Sep 22, 2011

Appl. No.:

13/240036

Inventors:

Robert Folk - Costa Mesa CA, US

Assignee:

Cla-Val Co. - Costa Mesa CA

International Classification:

F16K 31/128

US Classification:

137 14, 137489, 1374925, 251 35

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.

US Patent:

20080251130, Oct 16, 2008

Filed:

Apr 4, 2008

Appl. No.:

12/062946

Inventors:

Robert Folk - Costa Mesa CA, US

Assignee:

CLA-VAL CO. - Costa Mesa CA

International Classification:

F17D 1/00
F16K 31/00
F16K 31/36

US Classification:

137 14, 13762427, 1374895

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.

US Patent:

20120006417, Jan 12, 2012

Filed:

Sep 22, 2011

Appl. No.:

13/240070

Inventors:

Robert Folk - Costa Mesa CA, US

Assignee:

CLA-VAL CO. - Costa Mesa CA

International Classification:

F17D 3/00
F16K 1/00
F16K 31/12

US Classification:

137 12, 137488, 251333

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.

US Patent:

20120012199, Jan 19, 2012

Filed:

Sep 22, 2011

Appl. No.:

13/240056

Inventors:

Robert Folk - Costa Mesa CA, US

Assignee:

CLA-VAL CO. - Costa Mesa CA

International Classification:

F16K 31/12

US Classification:

137485

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.

US Patent:

20190316700, Oct 17, 2019

Filed:

Apr 12, 2018

Appl. No.:

15/952006

Inventors:

- Costa Mesa CA, US
David Rose - Fountain Valley CA, US
Robert Folk - Laguna Beach CA, US
Ryan W. Pickett - Costa Mesa CA, US

Assignee:

Cla-Val Co. - Redwood Shores CA

International Classification:

F16K 27/02
B23P 15/00

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.