Patents by Inventor Paul W. Freisinger
Paul W. Freisinger 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).
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Patent number: 11346450Abstract: A poppet assembly for a valve can include a valve stem for cooperating with a valve actuator, a first valve member coupled to the valve stem in a fixed position and configured to sealingly engage a first orifice and a second valve member coupled to the valve stem and configured to sealingly engage a second orifice. The second valve member can include a coupler for coupling the second valve member to the valve stem and a seal configured to couple to the coupler and the valve stem. The second valve member can be configured for achieving proper spacing between the valve members for simultaneous contact with their respective orifices without the need for more costly and time consuming components or assembly methods.Type: GrantFiled: January 8, 2020Date of Patent: May 31, 2022Assignee: AUTOMATIC SWITCH COMPANYInventor: Paul W. Freisinger
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Publication number: 20210207716Abstract: A poppet assembly for a valve can include a valve stem for cooperating with a valve actuator, a first valve member coupled to the valve stem in a fixed position and configured to sealingly engage a first orifice and a second valve member coupled to the valve stem and configured to sealingly engage a second orifice. The second valve member can include a coupler for coupling the second valve member to the valve stem and a seal configured to couple to the coupler and the valve stem. The second valve member can be configured for achieving proper spacing between the valve members for simultaneous contact with their respective orifices without the need for more costly and time consuming components or assembly methods.Type: ApplicationFiled: January 8, 2020Publication date: July 8, 2021Inventor: Paul W. Freisinger
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Patent number: 8733729Abstract: A valve assembly comprising an inlet port, an outlet port, and a diaphragm configured to selectively allow communication between the inlet port and the outlet port, the diaphragm including a first side adjacent the ports and a second side opposed to the ports. The valve preferably includes at least one bleed path between the first side and the second side of the diaphragm with a one way flow device configured to allow flow from the first side to the second side of the diaphragm and prevent flow from the second side to the first side of the diaphragm. The valve may include a first bleed path from the inlet port to the second side of the diaphragm and a second bleed path from the outlet port to the second side of the diaphragm. Either bleed path, or both, may comprise a check valve mounted in the diaphragm.Type: GrantFiled: October 10, 2011Date of Patent: May 27, 2014Assignee: Liebert CorporationInventors: Gregory Volz, Paul W. Freisinger, Juan Antonio Cervantes, Gabriel Arias
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Publication number: 20130087727Abstract: A valve assembly comprising an inlet port, an outlet port, and a diaphragm configured to selectively allow communication between the inlet port and the outlet port, the diaphragm including a first side adjacent the ports and a second side opposed to the ports. The valve preferably includes at least one bleed path between the first side and the second side of the diaphragm with a one way flow device configured to allow flow from the first side to the second side of the diaphragm and prevent flow from the second side to the first side of the diaphragm. The valve may include a first bleed path from the inlet port to the second side of the diaphragm and a second bleed path from the outlet port to the second side of the diaphragm. Either bleed path, or both, may comprise a check valve mounted in the diaphragm.Type: ApplicationFiled: October 10, 2011Publication date: April 11, 2013Applicant: AUTOMATIC SWITCH COMPANYInventors: Gregory VOLZ, Paul W. FREISINGER, Juan Antonio CERVANTES, Gabriel ARIAS
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Patent number: 8210494Abstract: An automatically adjusting control valve comprises a valve body; a valve seat within the valve body; a sealing disc adjacent the valve seat when the valve is closed and offset from the valve seat when the valve is open; an armature adjacent the sealing disc and operable to move the sealing disc linearly within the valve body; a biasing mechanism which biases the armature toward a first position; and an actuation stem configured to overcome the biasing mechanism and move the armature between the first position and a second position upon manual operation. The actuation stem may comprise a portion which engages the armature during movement between the first position and the second position The portion may be configured to deform to accommodate manufacturing tolerances of the valve.Type: GrantFiled: December 30, 2009Date of Patent: July 3, 2012Assignee: Automatic Switch CompanyInventors: Paul W. Freisinger, Ahmad Abbas Chaudhry
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Publication number: 20110088788Abstract: An automatically adjusting control valve comprises a valve body; a valve seat within the valve body; a sealing disc adjacent the valve seat when the valve is closed and offset from the valve seat when the valve is open; an armature adjacent the sealing disc and operable to move the sealing disc linearly within the valve body; a biasing mechanism which biases the armature toward a first position; and an actuation stem configured to overcome the biasing mechanism and move the armature between the first position and a second position upon manual operation. The actuation stem may comprise a portion which engages the armature during movement between the first position and the second position The portion may be configured to deform to accommodate manufacturing tolerances of the valve.Type: ApplicationFiled: December 30, 2009Publication date: April 21, 2011Applicant: AUTOMATIC SWITCH COMPANYInventors: Paul W. Freisinger, Ahmad Abbas Chaudhry
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Patent number: 6729601Abstract: An extended range proportional valve which can control rates of mass flow over continuous low, intermediate and high ranges has a pilot member mounted on an armature of a solenoid which can be dithered onto and off of a pilot opening in a main valve member which seals a main valve opening to control mass flow rates over the low range by varying the duty cycle and/or frequency of a pulse width modulated current in the solenoid coil. Intermediate and high flow rates are achieved by dithering the pilot valve member with a duty cycle and/or frequency sufficient to raise the main valve member relatively short and relatively long respective distances from the main valve seat.Type: GrantFiled: May 19, 2003Date of Patent: May 4, 2004Assignee: ASCO Controls, LPInventors: Paul W. Freisinger, John J. Haller, Peter A. Holborow
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Publication number: 20030201414Abstract: An extended range proportional valve which can control rates of mass flow over continuous low, intermediate and high ranges has a pilot member mounted on an armature of a solenoid which can be dithered onto and off of a pilot opening in a main valve member which seals a main valve opening to control mass flow rates over the low range by varying the duty cycle and/or frequency of a pulse width modulated current in the solenoid coil. Intermediate and high flow rates are achieved by dithering the pilot valve member with a duty cycle and/or frequency sufficient to raise the main valve member relatively short and relatively long respective distances from the main valve seat.Type: ApplicationFiled: May 19, 2003Publication date: October 30, 2003Applicant: ASCO Controls, L.P.Inventors: Paul W. Freisinger, John J. Haller, Peter A. Holborow
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Patent number: 6619612Abstract: An extended range proportional valve which can control rates of mass flow over continuous low, intermediate and high ranges has a pilot member mounted on an armature of a solenoid which can be dithered onto and off of a pilot opening in a main valve member which seals a main valve opening to control mass flow rates over the low range by varying the duty cycle and/or frequency of a pulse width modulated current in the solenoid coil. Intermediate and high flow rates are achieved by dithering the pilot valve member with a duty cycle and/or frequency sufficient to raise the main valve member relatively short and relatively long respective distances from the main valve seat.Type: GrantFiled: February 18, 2000Date of Patent: September 16, 2003Assignee: Asco Controls, LPInventors: Paul W. Freisinger, John J. Haller, Peter A. Holborow
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Publication number: 20020053652Abstract: An extended range proportional valve which can control rates of mass flow over continuous low, intermediate and high ranges has a pilot member mounted on an armature of a solenoid which can be dithered onto and off of a pilot opening in a main valve member which seals a main valve opening to control mass flow rates over the low range by varying the duty cycle and/or frequency of a pulse width modulated current in the solenoid coil. Intermediate and high flow rates are achieved by dithering the pilot valve member with a duty cycle and/or frequency sufficient to raise the main valve member relatively short and relatively long respective distances from the main valve seat.Type: ApplicationFiled: February 18, 2000Publication date: May 9, 2002Inventors: Paul W. Freisinger, John J. Haller, Peter A. Holborow
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Publication number: 20010032947Abstract: An extended range proportional valve which can control rates of mass flow over continuous low, intermediate and high ranges has a pilot member mounted on an armature of a solenoid which can be dithered onto and off of a pilot opening in a main valve member which seals a main valve opening to control mass flow rates over the low range by varying the duty cycle and/or frequency of a pulse width modulated current in the solenoid coil. Intermediate and high flow rates are achieved by dithering the pilot valve member with a duty cycle and/or frequency sufficient to raise the main valve member relatively short and relatively long respective distances from the main valve seat.Type: ApplicationFiled: May 17, 2001Publication date: October 25, 2001Inventors: Paul W. Freisinger, John J. Haller, Peter A. Holborow