Patents by Inventor Robert E. Callies
Robert E. Callies 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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Publication number: 20100096476Abstract: A distribution tube assembly for an irrigation system having a main supply line for conveying fluid therein includes a first end, a second end and an internal surface defining at least two fluid passageways, at least one of the fluid passageways being in fluid communication with the main supply line. The other fluid passageway may be in fluid communication with an alternate supply line. Adaptors and regulators may be attached to the distribution tube assembly. The distribution tube assembly permits irrigation to be performed by multiple fluid streams, allows for the incorporation of chemicals within the distribution tube assembly, and provides for selectable flow control.Type: ApplicationFiled: September 15, 2009Publication date: April 22, 2010Applicant: Lindsay CorporationInventors: Robert E. Callies, Charles H. Meis
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Patent number: 7588200Abstract: A distribution tube assembly for an irrigation system having a main supply line for conveying fluid therein includes a first end, a second end and an internal surface defining at least two fluid passageways, at least one of the fluid passageways being in fluid communication with the main supply line. The other fluid passageway may be in fluid communication with an alternate supply line. Adaptors and regulators may be attached to the distribution tube assembly. The distribution tube assembly permits irrigation to be performed by multiple fluid streams, allows for the incorporation of chemicals within the distribution tube assembly, and provides for selectable flow control.Type: GrantFiled: June 1, 2001Date of Patent: September 15, 2009Assignee: Lindsay Manufacturing CompanyInventors: Robert E. Callies, Charles H. Meis
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Patent number: 6938842Abstract: This invention relates to a fluid flow control method that enables a self-propelled irrigation machine to apply varying amounts of fluid as might be required to suitably treat the surface area affected by each of the individual fluid application devices thereon. The control method regulates the total volume of fluid emitted by each application device to a predetermined value as it responds to a suitable control signal to permit or prevent fluid flow. This fluid flow control method involves time-based rapid cycling of the flow control apparatus to provide continuously variable fluid flow as is required to meet the desired average output of each emitting device as the flow requirement varies from time to time as needed to produce a selected, pre-determined application rate throughout the treated surface area.Type: GrantFiled: May 23, 2003Date of Patent: September 6, 2005Assignee: Lindsay Manufacturing CompanyInventors: Wayne D. Choat, Robert E. Callies
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Patent number: 6923205Abstract: A normally closed regulator valve for controlling the pressure of flowing fluid and also for selectively fully enabling or stopping the flow. The regulator valve includes a valve housing having an inlet passage and an outlet passage connected by a flow passage with a seat surrounding the flow passage. A valve member is movable toward and away from contact with the seat. A control housing is attached to the valve housing. An elongated rod connected at one end to the valve member has an opposite end extending into the control housing. A rod partition, which may take the form of a rigid piston or a flexible diaphragm, is connected to the opposite end of the elongated rod and is movable in the control housing in sealing relation with the walls thereof. A compression spring is provided to bias the rod partition and the valve member in directions either toward or away from sealing engagement with the flow passage seat.Type: GrantFiled: June 9, 2004Date of Patent: August 2, 2005Assignee: Lindsay Manufacturing Co.Inventor: Robert E. Callies
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Publication number: 20040261859Abstract: A normally closed regulator valve for controlling the pressure of flowing fluid and also for selectively fully enabling or stopping the flow. The regulator valve includes a valve housing having an inlet passage and an outlet passage connected by a flow passage with a seat surrounding the flow passage. A valve member is movable toward and away from contact with the seat. A control housing is attached to the valve housing. An elongated rod connected at one end to the valve member has an opposite end extending into the control housing. A rod partition, which may take the form of a rigid piston or a flexible diaphragm, is connected to the opposite end of the elongated rod and is movable in the control housing in sealing relation with the walls thereof. A compression spring is provided to bias the rod partition and the valve member in directions either toward or away from sealing engagement with the flow passage seat.Type: ApplicationFiled: June 9, 2004Publication date: December 30, 2004Inventor: Robert E. Callies
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Publication number: 20040232261Abstract: This invention relates to a fluid flow control method that enables a self-propelled irrigation machine to apply varying amounts of fluid as might be required to suitably treat the surface area affected by each of the individual fluid application devices thereon. The control method regulates the total volume of fluid emitted by each application device to a predetermined value as it responds to a suitable control signal to permit or prevent fluid flow. This fluid flow control method involves time-based rapid cycling of the flow control apparatus to provide continuously variable fluid flow as is required to meet the desired average output of each emitting device as the flow requirement varies from time to time as needed to produce a selected, pre-determined application rate throughout the treated surface area.Type: ApplicationFiled: May 23, 2003Publication date: November 25, 2004Inventors: Wayne D. Choat, Robert E. Callies
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Patent number: 6758238Abstract: A regulator valve has a housing with a seal member therein. First and second plungers are movable in the housing toward and away from the seal member. The plungers are sealed to the housing and have passages therethrough. The plungers are biased toward the seal member by fluid pressure at the housing outlet end. The plungers are biased away from the seal member by a spring. First and second diaphragms connected to the plungers engage the housing inner wall in sealing engagement so that fluid must flow through the passages. The diaphragms and housing define an expansion chamber. A port in fluid communication with the expansion chamber allows selectable introduction of pilot pressure into the expansion chamber to force the first plunger into engagement with the seal member and prevent flow through the passages. In an embodiment of the regulator valve, the water inlet may be oriented at some divergent angle with respect to a water outlet such as 90 degrees.Type: GrantFiled: April 22, 2002Date of Patent: July 6, 2004Assignee: Lindsay Manufacturing Co.Inventor: Robert E. Callies
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Patent number: 6752169Abstract: A regulator for controlling the pressure of flowing fluid and also for selectively fully enabling or stopping the flow. The regulator valve includes a valve housing having an inlet passage and an outlet passage connected by a flow passage with a seat surrounding the flow passage. A valve member is movable toward and away from contact with the seat. A control housing is attached to the valve housing. An elongated rod connected at one end to the valve member has an opposite end extending into the control housing. A rod piston is connected to the opposite end of the elongated rod and is movable in the control housing in sealing engagement with the walls thereof. A compression spring is provided to bias the rod piston and the valve member in directions either toward or away from sealing engagement with the flow passage seat. An auxiliary piston is positioned in the control housing on the side of the rod piston away from the seat.Type: GrantFiled: October 31, 2002Date of Patent: June 22, 2004Assignee: Lindsay Manufacturing Co.Inventor: Robert E. Callies
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Publication number: 20040084088Abstract: A regulator for controlling the pressure of flowing fluid and also for selectively fully enabling or stopping the flow. The regulator valve includes a valve housing having an inlet passage and an outlet passage connected by a flow passage with a seat surrounding the flow passage. A valve member is movable toward and away from contact with the seat. A control housing is attached to the valve housing. An elongated rod connected at one end to the valve member has an opposite end extending into the control housing. A rod piston is connected to the opposite end of the elongated rod and is movable in the control housing in sealing engagement with the walls thereof. A compression spring is provided to bias the rod piston and the valve member in directions either toward or away from sealing engagement with the flow passage seat. An auxiliary piston is positioned in the control housing on the side of the rod piston away from the seat.Type: ApplicationFiled: October 31, 2002Publication date: May 6, 2004Inventor: Robert E. Callies
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Publication number: 20040003848Abstract: A regulator valve has a housing with a seal member therein. First and second plungers are movable in the housing toward and away from the seal member. The plungers are sealed to the housing and have passages therethrough. The plungers are biased toward the seal member by fluid pressure at the housing outlet end. The plungers are biased away from the seal member by a spring. First and second diaphragms connected to the plungers engage the housing inner wall in sealing engagement so that fluid must flow through the passages. The diaphragms and housing define an expansion chamber. A port in fluid communication with the expansion chamber allows selectable introduction of pilot pressure into the expansion chamber to force the first plunger into engagement with the seal member and prevent flow through the passages. In an embodiment of the regulator valve, the water inlet may be oriented at some divergent angle with respect to a water outlet such as 90 degrees.Type: ApplicationFiled: April 22, 2002Publication date: January 8, 2004Inventor: Robert E. Callies
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Publication number: 20020179738Abstract: A distribution tube assembly for an irrigation system having a main supply line for conveying fluid therein includes a first end, a second end and an internal surface defining at least two fluid passageways, at least one of the fluid passageways being in fluid communication with the main supply line. The other fluid passageway may be in fluid communication with an alternate supply line. Adaptors and regulators may be attached to the distribution tube assembly. The distribution tube assembly permits irrigation to be performed by multiple fluid streams, allows for the incorporation of chemicals within the distribution tube assembly, and provides for selectable flow control.Type: ApplicationFiled: June 1, 2001Publication date: December 5, 2002Inventors: Robert E. Callies, Charles H. Meis
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Patent number: 6374853Abstract: A regulator valve has a housing with a seal member therein. First and second plungers are movable in the housing toward and away from the seal member. The plungers are sealed to the housing and have passages therethrough. The plungers are biased toward the seal member by fluid pressure at the housing outlet end. The plungers are biased away from the seal member by a spring. First and second diaphragms connected to the plungers engage the housing inner wall in sealing engagement so that fluid must flow through the passages. The diaphragms and housing define an expansion chamber. A port in fluid communication with the expansion chamber allows selectable introduction of pilot pressure into the expansion chamber to force the first plunger into engagement with the seal member and prevent flow through the passages.Type: GrantFiled: November 30, 2000Date of Patent: April 23, 2002Assignee: Lindsay Manufacturing CompanyInventor: Robert E. Callies