Patents Assigned to Velcon Filters, Inc.
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Patent number: 7518719Abstract: A method and apparatus for detecting contaminants in hydrocarbon fuel are disclosed, wherein a fuel analyzer includes a flow sensor to facilitate an automatic start up and shut down of a fuel analysis, and a calibration standard to facilitate an inline calibration of the fuel analyzer.Type: GrantFiled: January 25, 2007Date of Patent: April 14, 2009Assignee: Velcon Filters, Inc.Inventors: Greg Sprenger, Jed Stevens, Michael White, Richard Hillis, Jacob Lavenberg, Chris Templeman
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Patent number: 7187533Abstract: A passive device to neutralize electrostatic charging of fuel when it exists a filter monitor cartridge is described. Filter cartridges containing light filter media generate electrostatic charges, which flow with the fuel as it exists the filter. The device neutralizes the charges as the charges fuel exits the filter/monitor using corona discharge.Type: GrantFiled: December 10, 2001Date of Patent: March 6, 2007Assignee: Velcon Filters, Inc.Inventors: Gregory S. Sprenger, Michael J. Gish
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Patent number: 6997327Abstract: A filter comprises a paper layer, at least one outer particle filtering layer adjacent the paper layer, an ion exchange layer adjacent the at least one outer particle filtering layer, at least one outer non-woven layer adjacent the ion exchange layer, at least one salt-tolerant superabsorbant polymer layer adjacent the at least one outer non-woven layer, an inner particle filtering layer adjacent the at least one salt-tolerant superabsorbant polymer layer, an inner non-woven layer adjacent the inner particle filtering layer, and a support adjacent the inner non-woven layer.Type: GrantFiled: September 23, 2004Date of Patent: February 14, 2006Assignee: Velcon Filters, Inc.Inventor: Gregory S. Sprenger
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Patent number: 6920031Abstract: A hydrocarbon fluid filter monitor cartridge having apparatus for neutralizing the electrostatic charge in the transient fluid including a mass of filter material, and electrical conductor having a main conductive path and a plurality of cooperating electrically conductive paths extending from the main conductive path, and means for directing the flow of hydrocarbon fluid to be treated through the mass of filter material and in contact with the conductor whereby the electrostatic charge in the transient fluid is neutralized by corona discharge.Type: GrantFiled: March 31, 2004Date of Patent: July 19, 2005Assignee: Velcon Filters, Inc.Inventors: Gregory S. Sprenger, Michael J. Gish
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Publication number: 20050061728Abstract: A filter comprises a paper layer, at least one outer particle filtering layer adjacent the paper layer, an ion exchange layer adjacent the at least one outer particle filtering layer, at least one outer non-woven layer adjacent the ion exchange layer, at least one salt-tolerant superabsorbant polymer layer adjacent the at least one outer non-woven layer, an inner particle filtering layer adjacent the at least one salt-tolerant superabsorbant polymer layer, an inner non-woven layer adjacent the inner particle filtering layer, and a support adjacent the inner non-woven layer.Type: ApplicationFiled: September 23, 2004Publication date: March 24, 2005Applicant: Velcon Filters, Inc.Inventor: Gregory Sprenger
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Publication number: 20040212945Abstract: A passive device to neutralize electrostatic charging of transient hydrocarbon fluid when it exits a filter monitor cartridge is described.Type: ApplicationFiled: March 31, 2004Publication date: October 28, 2004Applicant: Velcon Filters, Inc.Inventors: Gregory S. Sprenger, Michael J. Gish
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Patent number: 6609411Abstract: An apparatus for removing water from a dielectric oil which includes a vacuum pump (56) which militates against the introduction of air into the dielectric oil and a thin film capacitance sensor (48) for monitoring the amount of moisture present in the dielectric oil.Type: GrantFiled: August 14, 2001Date of Patent: August 26, 2003Assignee: Velcon Filters, Inc.Inventors: Benjamin G. Taylor, Jeffrey J. Baltes
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Patent number: 6569330Abstract: A filter coalescer cartridge for treating jet fuels comprising spaced apart filter/coalescer layers to effectively remove particulate contaminants and water from the transient fuel being treated.Type: GrantFiled: July 19, 2000Date of Patent: May 27, 2003Assignee: Velcon Filters, Inc.Inventors: Gregory S. Sprenger, Michael J. Gish
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Patent number: 6415930Abstract: A separator cartridge comprises a support screen comprising a substantially rigid reinforced plastic cylinder including an inner first major surface and an outer second major surface, a first nonwoven polymer layer adhered to the inner first major surface of the support screen, a second nonwoven polymer layer adhered to the outer second major surface of the support screen, and a polymeric screen contacting and frictionally engaging the second nonwoven polymer layer, the polymeric screen including a hydrophobic coating.Type: GrantFiled: May 30, 2000Date of Patent: July 9, 2002Assignee: Velcon Filters, Inc.Inventors: Gregory S. Sprenger, Michael J. Gish
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Patent number: 6068723Abstract: A separator cartridge comprises a support screen comprising a substantially rigid reinforced plastic cylinder including an inner first major surface and an outer second major surface, a first nonwoven polymer layer adhered to the inner first major surface of the support screen, a second nonwoven polymer layer adhered to the outer second major surface of the support screen, and a polymeric screen contacting and frictionally engaging the second nonwoven polymer layer, the polymeric screen including a hydrophobic coating. The invention also contemplates a process for preparing the separator cartridge.Type: GrantFiled: May 4, 1999Date of Patent: May 30, 2000Assignee: Velcon Filters, Inc.Inventors: Gregory S. Sprenger, Michael J. Gish
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Patent number: 5574214Abstract: Apparatus for removing water from a dielectric oil includes first and second spaced-apart electrically conductive walls, a bed of molecular sieves between the first and second walls, and a device for measuring the capacitance across the bed of molecular sieves between the first and second walls.Type: GrantFiled: May 17, 1995Date of Patent: November 12, 1996Assignee: Velcon Filters, Inc.Inventors: Christopher S. Balton, James D. Pierce, Gregory S. Sprenger, Benjamin G. Taylor
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Patent number: 4242206Abstract: A filter dehydrator for sensing the presence of and separating free water in a transient flow of fluid is disclosed comprising an inlet for the fluid, and outlet for the fluid, a mass of water absorptive cellulosic fibers disposed between the inlet and the outlet and a filter medium means upstream of the absorptive mass for removing solid particles that would block the active surface of the mass and for dispersing water droplets in the fluid. The preferred water absorptive cellulosic fiber mass is a water-insoluble cross-linked carboxymethyl cellulose fiber and the preferred filter and disperser is a fiberglass medium filter.Type: GrantFiled: October 26, 1978Date of Patent: December 30, 1980Assignee: Velcon Filters, Inc.Inventor: John C. Estabrooke
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Patent number: 3936663Abstract: An averaging circuit for producing average boat speed and average apparent wind speed which in cooperation with average apparent wind direction are utilized to determine the performance characteristics of sailing boats. Instantaneous values of the speed parameters are sampled at a predetermined frequency and a running average of N samples is generated by adding the most recent sample and discarding the oldest sample at periodic intervals. Display of the wind speed is delayed with respect to the display of boat speed to compensate for the effect of the inertia of the boat.Type: GrantFiled: September 12, 1974Date of Patent: February 3, 1976Assignee: Velcon Filters, Inc.Inventors: Lucian W. Taylor, John M. Yarborough, Jr.
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Patent number: 3934129Abstract: A system for evaluating the performance of a sailing boat wherein average boat speed, average apparent wind speed and average apparent wind direction are sensed and are utilized to determine the performance characteristics of sailing boats. The system includes an apparent wind direction indicator which senses the instantaneous apparent wind direction and compares it with a previously generated average apparent wind direction signal to obtain an error signal. The error signal is intergrated to obtain an average error signal which is utilized to correct the previously generated average apparent wind direction signal by changing the position of an average apparent wind direction indicator.Type: GrantFiled: August 21, 1974Date of Patent: January 20, 1976Assignee: Velcon Filters, Inc.Inventors: Lucian W. Taylor, George J. Eilers