Patents by Inventor David A. Carbo
David A. Carbo 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: 9950298Abstract: Described are water-on-water valves for use in reverse osmosis filtration systems. The water-on-water valves are regulated by the pressure in a product line, which contains fluid from a product line of the filter module and/or the product side of a water-on-water storage tank. Exemplary valves are shuttle valves that are regulated by the pressure downstream of the product side of a reverse osmosis filter module. The valves may comprise a piston within a housing, and an end of the piston may have an enlarged diameter relative to the maximum diameter of the remainder of the piston. The body of the piston may have sections of differing diameters, where the smaller diameter sections form flow channels, or the body may a diameter that is substantially the same along its length in conjunction with gratings and flow channels.Type: GrantFiled: September 26, 2013Date of Patent: April 24, 2018Assignee: 3M Innovative Properties CompanyInventors: Laurence W. Bassett, Dian Zheng, David A. Carbo
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Publication number: 20150083666Abstract: Described are water-on-water valves for use in reverse osmosis filtration systems. The water-on-water valves are regulated by the pressure in a product line, which contains fluid from a product line of the filter module and/or the product side of a water-on-water storage tank. Exemplary valves are shuttle valves that are regulated by the pressure downstream of the product side of a reverse osmosis filter module. The valves may comprise a piston within a housing, and an end of the piston may have an enlarged diameter relative to the maximum diameter of the remainder of the piston. The body of the piston may have sections of differing diameters, where the smaller diameter sections form flow channels, or the body may a diameter that is substantially the same along its length in conjunction with gratings and flow channels.Type: ApplicationFiled: September 26, 2013Publication date: March 26, 2015Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Laurence W. Bassett, Dian Zheng, David A. Carbo
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Publication number: 20110005988Abstract: Disclosed is a unique filter assembly for ensuring replacement cartridge compatibility in filtration systems having replaceable filter cartridges with lugged mounting systems. One representative filter assembly includes a representative cartridge member having a body portion for enclosing filter media and a neck portion depending therefrom. The representative neck portion of the representative cartridge includes at least one axial inlet port for directing unfiltered fluid into the body portion and at least one axial outlet port for directing filtered fluid out of the body portion. The representative neck portion also has at least two representative lugs depending radially outwardly therefrom, wherein at least one lug defines a keyed surface formation.Type: ApplicationFiled: July 26, 2010Publication date: January 13, 2011Inventors: Laurence W. Bassett, William Contaxis, III, Bruce G. Taylor, David A. Carbo
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Publication number: 20100288687Abstract: Disclosed is a unique filter assembly for ensuring replacement cartridge compatibility in filtration systems having replaceable filter cartridges with lugged mounting systems. One representative filter assembly includes a representative cartridge member having a body portion for enclosing filter media and a neck portion depending therefrom. The representative neck portion of the representative cartridge includes at least one axial inlet port for directing unfiltered fluid into the body portion and at least one axial outlet port for directing filtered fluid out of the body portion. The representative neck portion also has at least two representative lugs depending radially outwardly therefrom, wherein at least one lug defines a keyed surface formation.Type: ApplicationFiled: July 26, 2010Publication date: November 18, 2010Inventors: Laurence W. Bassett, William Contaxis, III, Bruce G. Taylor, David A. Carbo
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Patent number: 7763170Abstract: Disclosed is a unique filter assembly for ensuring replacement cartridge compatibility in filtration systems having replaceable filter cartridges with lugged mounting systems. One representative filter assembly includes a representative cartridge member having a body portion for enclosing filter media and a neck portion depending therefrom. The representative neck portion of the representative cartridge includes at least one axial inlet port for directing unfiltered fluid into the body portion and at least one axial outlet port for directing filtered fluid out of the body portion. The representative neck portion also has at least two representative lugs depending radially outwardly therefrom, wherein at least one lug defines a keyed surface formation.Type: GrantFiled: July 15, 2008Date of Patent: July 27, 2010Assignee: 3M Innovative Properties CompanyInventors: Laurence W. Bassett, William Contaxis, III, Bruce G. Taylor, David A. Carbo
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Publication number: 20090020470Abstract: Disclosed is a unique filter assembly for ensuring replacement cartridge compatibility in filtration systems having replaceable filter cartridges with lugged mounting systems. One representative filter assembly includes a representative cartridge member having a body portion for enclosing filter media and a neck portion depending therefrom. The representative neck portion of the representative cartridge includes at least one axial inlet port for directing unfiltered fluid into the body portion and at least one axial outlet port for directing filtered fluid out of the body portion. The representative neck portion also has at least two representative lugs depending radially outwardly therefrom, wherein at least one lug defines a keyed surface formation.Type: ApplicationFiled: July 15, 2008Publication date: January 22, 2009Inventors: Laurence W. Bassett, William Contaxis, III, Bruce G. Taylor, David A. Carbo
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Patent number: 7135113Abstract: A filter assembly is disclosed including a cartridge member having a body portion and a cylindrical neck portion depending from the body portion, the neck portion having at least one lug depending radially outwardly therefrom having a keyed surface formation thereon, and a reception member defining an axial bore for receiving the neck portion of the cartridge member, the bore having at least one reception area provided therein for receiving the at least one lug, the reception area having a compatible mating surface formation defined therein for engaging the keyed surface formation on the lug so as to prevent engagement with an incompatible cartridge member.Type: GrantFiled: January 8, 2004Date of Patent: November 14, 2006Assignee: 3M Innovative Properties CompanyInventors: Laurence W. Bassett, William Contaxis, III, Bruce G. Taylor, David A. Carbo
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Publication number: 20050252841Abstract: Disclosed is a unique filter assembly for ensuring replacement cartridge compatibility in filtration systems having replaceable filter cartridges with lugged mounting systems. One representative filter assembly includes a representative cartridge member having a body portion for enclosing filter media and a neck portion depending therefrom. The representative neck portion of the representative cartridge includes at least one axial inlet port for directing unfiltered fluid into the body portion and at least one axial outlet port for directing filtered fluid out of the body portion. The representative neck portion also has at least two representative lugs depending radially outwardly therefrom, wherein at least one lug defines a keyed engagement surface, a leading inclined cam surface and a trailing inclined cam surface.Type: ApplicationFiled: July 22, 2005Publication date: November 17, 2005Inventors: Laurence Bassett, William Contaxis, Bruce Taylor, David Carbo
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Patent number: 6949189Abstract: Disclosed is a unique filter assembly for ensuring replacement cartridge compatibility in filtration systems having replaceable filter cartridges with lugged mounting systems. One representative filter assembly includes a representative cartridge member having a body portion for enclosing filter media and a neck portion depending therefrom. The representative neck portion of the representative cartridge includes at least one axial inlet port for directing unfiltered fluid into the body portion and at least one axial outlet port for directing filtered fluid out of the body portion. The representative neck portion also has at least two representative lugs depending radially outwardly therefrom, wherein at least one lug defines a keyed engagement surface, a leading inclined cam surface and a trailing inclined cam surface.Type: GrantFiled: December 12, 2003Date of Patent: September 27, 2005Assignee: CUNO IncorporatedInventors: Laurence W. Bassett, William Contaxis, III, Bruce G. Taylor, David A. Carbo
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Publication number: 20040144713Abstract: A filter assembly is disclosed including a cartridge member having a body portion and a cylindrical neck portion depending from the body portion, the neck portion having at least one lug depending radially outwardly therefrom having a keyed surface formation thereon, and a reception member defining an axial bore for receiving the neck portion of the cartridge member, the bore having at least one reception area provided therein for receiving the at least one lug, the reception area having a compatible mating surface formation defined therein for engaging the keyed surface formation on the lug so as to prevent engagement with an incompatible cartridge member.Type: ApplicationFiled: January 8, 2004Publication date: July 29, 2004Inventors: Laurence W. Bassett, William Contaxis, Bruce G. Taylor, David A. Carbo
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Publication number: 20040144710Abstract: Disclosed is a unique filter assembly for ensuring replacement cartridge compatibility in filtration systems having replaceable filter cartridges with lugged mounting systems. One representative filter assembly includes a representative cartridge member having a body portion for enclosing filter media and a neck portion depending therefrom. The representative neck portion of the representative cartridge includes at least one axial inlet port for directing unfiltered fluid into the body portion and at least one axial outlet port for directing filtered fluid out of the body portion. The representative neck portion also has at least two representative lugs depending radially outwardly therefrom, wherein at least one lug defines a keyed engagement surface, a leading inclined cam surface and a trailing inclined cam surface.Type: ApplicationFiled: December 12, 2003Publication date: July 29, 2004Inventors: Laurence W. Bassett, William Contaxis, Bruce G. Taylor, David A. Carbo
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Publication number: 20020185425Abstract: A filter assembly is disclosed including a cartridge member having a body portion and a cylindrical neck portion depending from the body portion, the neck portion having at least one lug depending radially outwardly therefrom having a keyed surface formation thereon, and a reception member defining an axial bore for receiving the neck portion of the cartridge member, the bore having at least one reception area provided therein for receiving the at least one lug, the reception area having a compatible mating surface formation defined therein for engaging the keyed surface formation on the lug so as to prevent engagement with an incompatible cartridge member.Type: ApplicationFiled: July 30, 2002Publication date: December 12, 2002Inventors: Laurence W. Bassett, William Contaxis, Bruce G. Taylor, David A. Carbo
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Patent number: 6458269Abstract: A filter assembly is disclosed including a cartridge member having a body portion and a cylindrical neck portion depending from the body portion, the neck portion having at least one lug depending radially outwardly therefrom having a keyed surface formation thereon, and a reception member defining an axial bore for receiving the neck portion of the cartridge member, the bore having at least one reception area provided therein for receiving the at least one lug, the reception area having a compatible mating surface formation defined therein for engaging the keyed surface formation on the lug so as to prevent engagement with an incompatible cartridge member.Type: GrantFiled: April 20, 2000Date of Patent: October 1, 2002Assignee: Cuno IncorporatedInventors: Laurence W. Bassett, William Contaxis, III, Bruce G. Taylor, David A. Carbo