Patents by Inventor David B. Davis
David B. Davis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10612680Abstract: A stabilizer cartridge for enhancing stability of a fluid regulator is provided. The stabilizer cartridge includes a body, a first disk, and a second disk. The body has a through-bore and an external flange. The first disk has one or more windows and an aperture, and is fixed on an exterior surface of the body. The second disk is slidable along the exterior surface of the body and is biased into contact with the first disk by a biasing element that is positioned between the external flange and the second disk.Type: GrantFiled: April 19, 2019Date of Patent: April 7, 2020Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES. INC.Inventors: James C. Hawkins, David B. Davis, Tung K. Nguyen
-
Publication number: 20190242484Abstract: A stabilizer cartridge for enhancing stability of a fluid regulator is provided. The stabilizer cartridge includes a body, a first disk, and a second disk. The body has a through-bore and an external flange. The first disk has one or more windows and an aperture, and is fixed on an exterior surface of the body. The second disk is slidable along the exterior surface of the body and is biased into contact with the first disk by a biasing element that is positioned between the external flange and the second disk.Type: ApplicationFiled: April 19, 2019Publication date: August 8, 2019Inventors: James C. Hawkins, David B. Davis, Tung K. Nguyen
-
Patent number: 10302209Abstract: A stabilizer cartridge for enhancing stability of a fluid regulator is provided. The stabilizer cartridge includes a body, a first disk, and a second disk. The body is adapted to be disposed around a valve stem of the fluid regulator. The first disk is coupled to the body and defines one or more flow paths for facilitating pressure relief. The second disk is movably coupled to the body and is movable relative to the first disk responsive to fluid flow through the one or more flow paths of the first disk.Type: GrantFiled: August 31, 2016Date of Patent: May 28, 2019Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.Inventors: James C. Hawkins, David B. Davis, Tung K. Nguyen
-
Publication number: 20180058596Abstract: A stabilizer cartridge for enhancing stability of a fluid regulator is provided. The stabilizer cartridge includes a body, a first disk, and a second disk. The body is adapted to be disposed around a valve stem of the fluid regulator. The first disk is coupled to the body and defines one or more flow paths for facilitating pressure relief. The second disk is movably coupled to the body and is movable relative to the first disk responsive to fluid flow through the one or more flow paths of the first disk.Type: ApplicationFiled: August 31, 2016Publication date: March 1, 2018Applicant: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.Inventors: James C. Hawkins, David B. Davis, Tung K. Nguyen
-
Patent number: 9541925Abstract: A fluid regulating device includes a regulator valve having an inlet, an outlet, and a valve port disposed between the inlet and the outlet. An actuator is coupled to the regulator valve and includes a valve disc that displaces between a closed position and an open position. The device also includes an overpressure protection device adapted to stop flow from the inlet to the outlet when pressure in a control cavity reaches a predetermined level. The overpressure protection device includes a sensing tube having a first end in fluid communication with the control cavity and a second end in fluid communication with the outlet. The sensing tube has a first portion extending parallel to the flow axis. One or more apertures are disposed in the sensing tube adjacent to the second end, and each of the apertures has a centerline that is perpendicular to the flow axis.Type: GrantFiled: January 4, 2016Date of Patent: January 10, 2017Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.Inventors: James C. Hawkins, David B. Davis, Justin L. Masias
-
Patent number: 9353877Abstract: A safety device for a gas distribution system includes a valve body, an upper casing attached to the valve body, the upper casing housing at least one spring. Further, the at least one spring is attached to a movable diaphragm that is exposed to gas system pressure. The valve body also includes a release element mounted within the valve body. The release element releasing a relatch plug when the device is activated to move a safety disc into contact with a valve seat to stop fluid from flowing when an overpressure or an underpressure condition is sensed.Type: GrantFiled: October 1, 2014Date of Patent: May 31, 2016Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.Inventors: James C. Hawkins, David B. Davis
-
Publication number: 20160116920Abstract: A fluid regulating device includes a regulator valve having an inlet, an outlet, and a valve port disposed between the inlet and the outlet. An actuator is coupled to the regulator valve and includes a valve disc that displaces between a closed position and an open position. The device also includes an overpressure protection device adapted to stop flow from the inlet to the outlet when pressure in a control cavity reaches a predetermined level. The overpressure protection device includes a sensing tube having a first end in fluid communication with the control cavity and a second end in fluid communication with the outlet. The sensing tube has a first portion extending parallel to the flow axis. One or more apertures are disposed in the sensing tube adjacent to the second end, and each of the apertures has a centerline that is perpendicular to the flow axis.Type: ApplicationFiled: January 4, 2016Publication date: April 28, 2016Inventors: James C. Hawkins, David B. Davis, Justin L. Masias
-
Publication number: 20160097461Abstract: A safety device for a gas distribution system includes a valve body, an upper casing attached to the valve body, the upper casing housing at least one spring. Further, the at least one spring is attached to a movable diaphragm that is exposed to gas system pressure. The valve body also includes a release element mounted within the valve body. The release element releasing a relatch plug when the device is activated to move a safety disc into contact with a valve seat to stop fluid from flowing when an overpressure or an underpressure condition is sensed.Type: ApplicationFiled: October 1, 2014Publication date: April 7, 2016Inventors: James C. Hawkins, David B. Davis
-
Publication number: 20110259322Abstract: A method and system is provided for controlling efficiency of a heating system which is a combination hot water and space heating system that can modulate energy transfer. The heating system includes a heat exchanger for transferring and modulating heat between a primary fluid system having a hot water supply and a secondary fluid system for space heating. The primary fluid system includes a storage container, temperature sensors, a heating element connected to the heating assembly within the storage container for increasing the temperature of the storage fluid therein, a heating assembly, and a storage pump for delivering storage fluid from the storage container to the heat exchanger. The secondary fluid system includes a heating supply structure for containing a heating supply fluid, temperature sensors, and a heating supply pump in connection with the heating supply structure for circulating the heating supply fluid.Type: ApplicationFiled: January 25, 2011Publication date: October 27, 2011Applicant: HTP, INC.Inventors: DAVID B. DAVIS, STEVE ASSELIN, JUSTIN JENNE
-
Publication number: 20090065073Abstract: A metallic sealing disk having an elastomeric backing for use with fluid regulators is described. An example apparatus includes a substantially disk-shaped elastomeric ring and a substantially disk-shaped metallic ring coupled to the elastomeric ring to form a sealing surface.Type: ApplicationFiled: September 11, 2007Publication date: March 12, 2009Inventor: David B. Davis
-
Patent number: 6897280Abstract: A process is disclosed for producing silicone copolymers, wherein the process comprises the steps of: (a) providing at least one multi-stage blade-mixed plug flow reactor having an entry and an exit; (b) continuously feeding (i) hydrogen siloxane, (ii) olefinically substituted polyether or olefin capable of reacting with said hydrogen siloxane, and (iii) catalyst for the reaction to the entry of the multi-stage blade-mixed plug flow reactor, and (c) continuously withdrawing from the exit of the multi-stage blade-mixed plug flow reactor a stream that comprises silicone copolymer and is substantially free of unreacted hydrogen siloxane, provided that said hydrogen siloxane and said polyether or olefin have a residence time at reaction temperature in the multi-stage blade-mixed plug flow reactor sufficient to effect substantially complete hydrosilation.Type: GrantFiled: September 23, 2002Date of Patent: May 24, 2005Assignee: General Electric CompanyInventors: Ladislau Heisler, David D. Farris, David B. Davis, Paul E. Austin
-
Publication number: 20040059059Abstract: A process is disclosed for producing silicone copolymers, wherein the process comprises the steps of:Type: ApplicationFiled: September 23, 2002Publication date: March 25, 2004Inventors: Ladislau Heisler, David D. Farris, David B. Davis, Paul E. Austin
-
Publication number: 20030176597Abstract: A continuous process for the manufacture of silicone copolymer utilizing at least one static mixing plug flow reactor, and optionally two static mixing plug flow reactors in a series or parallel. Silicone copolymers produced in accordance thereof are substantially free of unreacted hydrogen siloxane starting material and may be used without further purification. The static mixing plug flow reactor contains static mixing elements capable of creating eddies and vortices of sufficient intensity that a biphasic liquid mixture such as a hydrogen siloxane fluid and an polyether olefinic reactant, undergoes shearing of the droplets of each material so that one phase disperses into another to provide intimate contact between the two phases to allow the reaction to proceed.Type: ApplicationFiled: April 4, 2003Publication date: September 18, 2003Applicant: CROMPTON CORPORATION, a corporation of the State of DelawareInventors: Paul E. Austin, Ladislau Heisler, David B. Davis
-
Patent number: 6593436Abstract: A continuous process for the manufacture of silicone copolymer utilizing at least one static mixing plug flow reactor, and optionally two static mixing plug flow reactors in a series or parallel. Silicone copolymers produced in accordance thereof are substantially free of unreacted hydrogen siloxane starting material and may be used without further purification. The static mixing plug flow reactor contains static mixing elements capable of creating eddies and vortices of sufficient intensity that a biphasic liquid mixture such as a hydrogen siloxane fluid and an polyether olefinic reactant, undergoes shearing of the droplets of each material so that one phase disperses into another to provide intimate contact between the two phases to allow the reaction to proceed.Type: GrantFiled: October 3, 2001Date of Patent: July 15, 2003Assignee: Crompton CorporationInventors: Paul E. Austin, Ladislau Heisler, David B. Davis
-
Publication number: 20020099137Abstract: A continuous process for the manufacture of silicone copolymer utilizing at least one static mixing plug flow reactor, and optionally two static mixing plug flow reactors in a series or parallel. Silicone copolymers produced in accordance thereof are substantially free of unreacted hydrogen siloxane starting material and may be used without further purification. The static mixing plug flow reactor contains static mixing elements capable of creating eddies and vortices of sufficient intensity that a biphasic liquid mixture such as a hydrogen siloxane fluid and an polyether olefinic reactant, undergoes shearing of the droplets of each material so that one phase disperses into another to provide intimate contact between the two phases to allow the reaction to proceed.Type: ApplicationFiled: October 3, 2001Publication date: July 25, 2002Inventors: Paul E. Austin, Ladislau Heisler, David B. Davis
-
Patent number: 4972868Abstract: A metallic gas pressure regulator includes a spring casing and a lower casing, sandwiching a diaphragm. The lower casing has axially aligned inlet and outlet ports. A one piece plastic cam stem and relief seat is mounted for movement with the diaphragm and includes a cam surface engaging a movable plastic disk holder. The disk holder is movable within a plastic orifice tube that supports a plastic valve seat. The orifice tube has a removable plastic boost end cap for providing a boost action to the diaphragm. A pressure relief mechanism is incorporated within the upper portion of the diaphragm. A metal disk is affixed in the inlet and includes a flow restricting hole and a flow diverter for directing flow toward the pressure relief mechanism in the event of destruction of the plastic orifice tube.Type: GrantFiled: February 8, 1990Date of Patent: November 27, 1990Assignee: Fisher Controls International, Inc.Inventors: David B. Davis, David E. Woollums, Donald D. Rice