Patents by Inventor Steven D. Barboza
Steven D. Barboza 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: 20090261033Abstract: A hollow cylindrical fluid treatment element (10B) including at least one fluid treatment zone (Z1) comprising melt-blown fibers and at least one reinforcement element (200A) comprising yarn and/or wire, is disclosed.Type: ApplicationFiled: June 25, 2009Publication date: October 22, 2009Applicant: PALL CORPORATIONInventors: Ahamad Y. A. Khan, Steven D. Barboza, Son Ngoc Nguyen, Michael B. Whitlock
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Patent number: 6662842Abstract: Filter cartridges may have a core element formed of a non-filtering, self-supporting non-woven mass of indefinite length continuous synthetic polymeric core fibers, and at least one annular filtration zone layer formed of a mass of non-woven indefinite length continuous synthetic polymeric filtration fibers. The non-woven core element is most preferably formed in situ during filter cartridge manufacturing by melt-blowing synthetic polymeric core fiber streams toward a forming mandrel. The non-woven core element is completely solidified prior to the filtration zone fibers being melt-blown thereon so that the core and filtration fibers are predominantly mechanically interlocked with one another, instead of being melt-bonded thereto. Filter cartridges of predetermined length may be cut from an upstream filter cartridge preform of indefinite length by subjecting the preform to forced cooling air to thereby minimize (if not eliminate entirely) significant filter cartridge shrinkage over time.Type: GrantFiled: August 30, 2001Date of Patent: December 16, 2003Assignee: Pall CorporationInventors: Brian Mozelack, Robert J. Schmitt, Steven D. Barboza, Praveen Jana, Son Ngoc Nguyen, Ronald R. Gschwandtner, Robert D. Connor, Timothy W. Yingling
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Publication number: 20020031629Abstract: Filter cartridges may have a core element formed of a non-filtering, self-supporting non-woven mass of indefinite length continuous synthetic polymeric core fibers, and at least one annular filtration zone layer formed of a mass of non-woven indefinite length continuous synthetic polymeric filtration fibers. The non-woven core element is most preferably formed in situ during filter cartridge manufacturing by melt-blowing synthetic polymeric core fiber streams toward a forming mandrel. The non-woven core element is completely solidified prior to the filtration zone fibers being melt-blown thereon so that the core and filtration fibers are predominantly mechanically interlocked with one another, instead of being melt-bonded thereto. Filter cartridges of predetermined length may be cut from an upstream filter cartridge preform of indefinite length by subjecting the preform to forced cooling air to thereby minimize (if not eliminate entirely) significant filter cartridge shrinkage over time.Type: ApplicationFiled: August 30, 2001Publication date: March 14, 2002Applicant: USF Filtration & Separations, Inc.Inventors: Brian Mozelack, Robert J. Schmitt, Steven D. Barboza, Araveen Jana, Son Ngoc Nguyen, Ronald R. Gschwandtner, Robert D. Connor, Timothy W. Yingling
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Publication number: 20020025397Abstract: Filter cartridges may have a core element formed of a non-filtering, self-supporting non-woven mass of indefinite length continuous synthetic polymeric core fibers, and at least one annular filtration zone layer formed of a mass of non-woven indefinite length continuous synthetic polymeric filtration fibers. The non-woven core element is most preferably formed in situ during filter cartridge manufacturing by melt-blowing synthetic polymeric core fiber streams toward a forming mandrel. The non-woven core element is completely solidified prior to the filtration zone fibers being melt-blown thereon so that the core and filtration fibers are predominantly mechanically interlocked with one another, instead of being melt-bonded thereto. Filter cartridges of predetermined length may be cut from an upstream filter cartridge preform of indefinite length by subjecting the preform to forced cooling air to thereby minimize (if not eliminate entirely) significant filter cartridge shrinkage over time.Type: ApplicationFiled: August 30, 2001Publication date: February 28, 2002Applicant: USF Filtration & Separations, Inc.Inventors: Brian Mozelack, Robert J. Schmitt, Steven D. Barboza, Praveen Jana, Son Ngoc Nguyen, Ronald R. Gschwandtner, Robert D. Connor, Timothy W. Yingling
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Patent number: 6342283Abstract: Filter cartridges may have a core element formed of a non-filtering, self-supporting non-woven mass of indefinite length continuous synthetic polymeric core fibers, and at least one annular filtration zone layer formed of a mass of non-woven indefinite length continuous synthetic polymeric filtration fibers. The non-woven core element is most preferably formed in situ during filter cartridge manufacturing by melt-blowing synthetic polymeric core fiber streams toward a forming mandrel. The non-woven core element is completely solidified prior to the filtration zone fibers being melt-blown thereon so that the core and filtration fibers are predominantly mechanically interlocked with one another, instead of being melt-bonded thereto. Filter cartridges of predetermined length may be cut from an upstream filter cartridge preform of indefinite length by subjecting the preform to forced cooling air to thereby minimize (if not eliminate entirely) significant filter cartridge shrinkage over time.Type: GrantFiled: July 22, 1999Date of Patent: January 29, 2002Assignee: USF Filtration & Separations, Inc.Inventors: Brian Mozelack, Robert J. Schmitt, Steven D. Barboza, Praveen Jana, Son Ngoc Nguyen, Ronald R. Gschwandtner, Robert D. Connor, Timothy W. Yingling
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Patent number: 5783011Abstract: Filtration medium is formed of a mass of nonwoven melt blown support and filtration fibers which are integrally co-located with one another. The support fibers have, on average, relatively larger diameters as compared to the filtration fibers which are integrally co-located therewith. Preferably, the filtration medium is disposed within at least one annular zone of a filtration element, for example, a disposable cylindrical filter cartridge having an axially elongate central hollow passageway which is surrounded by the filtration media. A depth filter cartridge in accordance with the present invention may thus be formed having one or more additional filtration zones (which additional filtration zones may or may not respectively be provided with integrally co-located support fibers) in annular relationship to one another.Type: GrantFiled: May 7, 1996Date of Patent: July 21, 1998Assignee: Memtec America CorporationInventors: Steven D. Barboza, Charles S. Hoffman, Jr., Clinton V. Kopp, Robert J. Schmitt, Anthony C. Shucosky
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Patent number: 5733581Abstract: The apparatus is provided to make a melt blown fibrous medium and includes first and second melt blowing dies for respectively issuing first and second streams of melt blown fibers along first and second melt blown paths. The first and second streams are issued on a forming surface where the streams are collected to form a melt blown fibrous medium. A movable transfer surface is interposed between the first die and the forming surface in the first path so that the first stream of melt blown fibers impinges on the transfer surface in advance of the forming surface such that the first stream is transferred to and brought into contact with the second stream of melt blown fibers on the forming surface.Type: GrantFiled: July 2, 1996Date of Patent: March 31, 1998Assignee: Memtec America CorporationInventors: Steven D. Barboza, Charles S. Hoffman, Jr., Clinton V. Kopp, Robert J. Schmitt, Anthony C. Shucosky
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Patent number: 5681469Abstract: Filtration medium is formed of a mass of nonwoven melt blown support and filtration fibers which are integrally co-located with one another. The support fibers have, on average, relatively larger diameters as compared to the filtration fibers which are integrally co-located therewith. Preferably, the filtration medium is disposed within at least one annular zone of a filtration element, for example, a disposable cylindrical filter cartridge having an axially elongate central hollow passageway which is surrounded by the filtration media. A depth filter cartridge in accordance with the present invention may thus be formed having one or more additional filtration zones (which additional filtration zones may or may not respectively be provided with integrally co-located support fibers) in annular relationship to one another.Type: GrantFiled: July 2, 1996Date of Patent: October 28, 1997Assignee: Memtec America CorporationInventors: Steven D. Barboza, Charles S. Hoffman, Jr., Clinton V. Kopp, Robert J. Schmitt, Anthony C. Shucosky
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Patent number: 5591335Abstract: Filtration medium is formed of a mass of nonwoven melt blown support and filtration fibers which are integrally co-located with one another. The support fibers have, on average, relatively larger diameters as compared to the filtration fibers which are integrally co-located therewith. Preferably, the filtration medium is disposed within at least one annular zone of a filtration element, for example, a disposable cylindrical filter cartridge having an axially elongate central hollow passageway which is surrounded by the filtration media. A depth filter cartridge in accordance with the present invention may thus be formed having one or more additional filtration zones (which additional filtration zones may or may not respectively be provided with integrally co-located support fibers) in annular relationship to one another.Type: GrantFiled: May 2, 1995Date of Patent: January 7, 1997Assignee: Memtec America CorporationInventors: Steven D. Barboza, Charles Hoffman, Jr., Clinton V. Kopp, Robert J. Schmitt, Anthony C. Shucosky
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Patent number: 5468397Abstract: In critical filtration applications, filter cartridges are employed to replace ion exchange resin precoat filters to minimize the waste produced. The filter cartridges are backwashed with all gas and the liquid in the filter housing provides an active scouring effect as a result of the high levels of turbulence produced. The liquid, with entrained debris from the filter is minimized in volume.Type: GrantFiled: March 16, 1993Date of Patent: November 21, 1995Assignee: Memtec America CorporationInventors: Steven D. Barboza, William P. Seeley, Anthony C. Shucosky
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Patent number: 5334451Abstract: A precoat septum in the form of a winding onto a core of textured yarn produced of continuous filaments of an organic or inorganic material. The yarn is texturized by air blowing a plurality of said filaments utilizing an air jet, and drawing off the filaments at a speed which is lower than the speed at which they enter the jet so that the resulting yarn is characterized by the filaments having a plurality of random entangled loops.Type: GrantFiled: April 26, 1993Date of Patent: August 2, 1994Assignee: Memtec America CorporationInventor: Steven D. Barboza