Patents by Inventor Joseph E. Scheffelin
Joseph E. Scheffelin 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: 7673971Abstract: An ink cartridge for an ink jet printer includes a substratum and a cover attached to the substratum and having an aperture provided therein. A printhead is attached to the substratum and provided at least partially within the aperture. At least one connector extends from the printhead into the aperture, and an adhesive material covers at least a portion of the at least one connector. At least one barrier is provided for preventing the adhesive material from flowing to locations away from the at least one connector.Type: GrantFiled: June 5, 2007Date of Patent: March 9, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Dale D. Timm, Hai Quang Tran, Joseph E. Scheffelin, Larry E. Schnebly, Paul Schweitzer, Jim Fischer
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Patent number: 7651196Abstract: An ink cartridge for an ink jet printer includes a substratum and a cover attached to the substratum and having an aperture provided therein. A printhead is attached to the substratum and provided at least partially within the aperture. At least one connector extends from the printhead into the aperture, and an adhesive material covers at least a portion of the at least one connector. At least one barrier is provided for preventing the adhesive material from flowing to locations away from the at least one connector.Type: GrantFiled: June 5, 2007Date of Patent: January 26, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Dale D. Timm, Hai Quang Tran, Joseph E. Scheffelin, Larry E. Schnebly, Paul Schweitzer, Jim Fischer
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Patent number: 7614710Abstract: One embodiment of a vent seal includes a vent that defines a vent channel and a seal positioned within the channel in both a closed vent condition and in an open vent condition.Type: GrantFiled: October 29, 2004Date of Patent: November 10, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Paul Mark Haines, Joseph E Scheffelin
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Patent number: 7480994Abstract: A fluid ejection head of a fluid ejection device is provided, the fluid ejection head having a substrate, a fluid ejection die coupled with the substrate, an electromagnetic radiation-curable adhesive disposed on the substrate, and a cover coupled with the substrate via the electromagnetic radiation-curable adhesive, wherein the cover includes an opening configured to pass fluids ejected from the fluid ejection die, and wherein the cover is made at least partially of a material transparent to electromagnetic radiation.Type: GrantFiled: February 16, 2007Date of Patent: January 27, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Benjamin H. Wood, III, Joseph E. Scheffelin, Noah Lassar, Mohammad Akhavain
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Patent number: 7338149Abstract: The described embodiments relate to methods and systems for forming and protecting electrical interconnect assemblies. In one embodiment, an electrical interconnect assembly forming method forms an electrical interconnect between one or more conductors of a first support structure and one or more conductors of a second support structure. The method also distributes a generally flowable material over the electrical interconnect and exposes the generally flowable material to conditions sufficient to render the generally flowable material into a generally non-flowable state that provides fluid protection to the electrical interconnect and supports the electrical interconnect to reduce stress concentration at the electrical interconnect.Type: GrantFiled: June 24, 2005Date of Patent: March 4, 2008Assignee: Hewlett-Packard Development Company, L.P.Inventors: Mohammad Akhavain, Joseph E. Scheffelin, Noah Lassar, Conrad Lepe
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Patent number: 7240991Abstract: An ink cartridge for an ink jet printer includes a substratum and a cover attached to the substratum and having an aperture provided therein. A printhead is attached to the substratum and provided at least partially within the aperture. At least one connector extends from the printhead into the aperture, and an adhesive material covers at least a portion of the at least one connector. At least one barrier is provided for preventing the adhesive material from flowing to locations away from the at least one connector.Type: GrantFiled: March 9, 2004Date of Patent: July 10, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Dale D. Timm, Hai Quang Tran, Joseph E. Scheffelin, Larry E. Schnebly, Paul Schweitzer, Jim Fischer
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Patent number: 7229152Abstract: In one embodiment, a fluid ejection device is configured to receive a signal and ejecting fluid in response thereto, including an ink ejecting nozzle layer having a substrate with first and second surfaces joined along an edge, an insulating feature located on the first surface adjacent the edge and a flexible lead that bends around the edge and lies flush against the insulating feature.Type: GrantFiled: October 31, 2003Date of Patent: June 12, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Noah C. Lassar, Steven W. Steinfield, Joseph E. Scheffelin, M. Jeffery Igelman, Frank J. Breti
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Patent number: 7188925Abstract: A fluid ejection head of a fluid ejection device is provided, the fluid ejection head having a substrate, a fluid ejection die coupled with the substrate, an electromagnetic radiation-curable adhesive disposed on the substrate, and a cover coupled with the substrate via the electromagnetic radiation-curable adhesive, wherein the cover includes an opening configured to pass fluids ejected from the fluid ejection die, and wherein the cover is made at least partially of a material transparent to electromagnetic radiation.Type: GrantFiled: January 30, 2004Date of Patent: March 13, 2007Assignee: Hewlett-Packard Development Company, L.P.Inventors: Benjamin H. Wood, III, Joseph E. Scheffelin, Noah Lassar, Mohammad Akhavain
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Patent number: 7103969Abstract: The described embodiments relate to methods and systems for forming die packages. In one exemplary embodiment, the method for forming die packages contacts interface areas of a die assembly to keep the interface areas free of an insulative material. The method distributes a flowable insulative material around portions of the die assembly.Type: GrantFiled: December 19, 2003Date of Patent: September 12, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Frank J. Bretl, Gary Powell, Donald L. Michael, Jefferson P. Ward, Joseph E. Scheffelin, Mohammad Akhavain
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Patent number: 6997540Abstract: A fluid ejection assembly includes a substrate and a plurality of fluid ejection devices each mounted on the substrate. The substrate includes a frame formed of a first material and a body formed of a second material such that the body substantially surrounds the frame and forms a first side and a second side of the substrate with each of the fluid ejection devices being mounted on the first side of the substrate.Type: GrantFiled: October 8, 2003Date of Patent: February 14, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Janis Horvath, Brian J. Keefe, Joseph E. Scheffelin, Mohammad Akhavin, David K. McElfresh, Noah Carl Lassar
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Patent number: 6951778Abstract: Methods and systems of protecting substrates that are intended for use in fluidic devices are described. In accordance with one embodiment, sealant material is applied over one or more edges of at least one multi-chip module substrate that is intended for use in a fluidic device. At least one edge has an exposed electrical interconnect and the sealant material is applied over less than an entirety of the substrate and sufficiently to cover the exposed electrical interconnect. The sealant material is exposed to conditions effective to seal the one or more edges.Type: GrantFiled: October 31, 2002Date of Patent: October 4, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Mohammad Akhavain, Stanley G. Markwell, Janis Horvath, Joseph E. Scheffelin
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Patent number: 6942316Abstract: A printhead assembly includes a carrier having a fluid manifold defined therein, a plurality of printhead dies each mounted on the carrier and communicating with the fluid manifold, and a fluid delivery assembly coupled with the carrier and communicating with the fluid manifold.Type: GrantFiled: October 30, 2002Date of Patent: September 13, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Joseph E Scheffelin, Ronald Ender, Paul Mark Haines, Gary G. Lutnesky, Norman E Pawlowski, Jr., Rhonda L. Wilson, John M. Herrmann, Kevin E Swier, Gary Tarver
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Patent number: 6913343Abstract: The described embodiments relate to methods and systems for forming and protecting electrical interconnect assemblies. In one embodiment, an electrical interconnect assembly forming method forms an electrical interconnect between one or more conductors of a first support structure and one or more conductors of a second support structure. The method also distributes a generally flowable material over the electrical interconnect and exposes the generally flowable material to conditions sufficient to render the generally flowable material into a generally non-flowable state that provides fluid protection to the electrical interconnect and supports the electrical interconnect to reduce stress concentration at the electrical interconnect.Type: GrantFiled: April 30, 2003Date of Patent: July 5, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: Mohammad Akhavain, Joseph E. Scheffelin, Noah Lassar, Conrad Lepe
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Patent number: 6880246Abstract: A method of forming a fluid ejection assembly includes providing a substrate including a plurality of layers and having a plurality of fluid passages extending through the plurality of layers, extending a support between opposite sides of each of the fluid passages, and mounting a plurality of fluid ejection devices on the substrate, including communicating each of the fluid ejection devices with one of the fluid passages.Type: GrantFiled: November 12, 2002Date of Patent: April 19, 2005Assignee: Hewlett-Packard Development Company, L.PInventors: Janis Horvath, Mohammad Akhavin, Joseph E. Scheffelin, Brian J. Keefe, David McElfresh, Pere Esterri
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Patent number: 6843552Abstract: A printhead assembly includes a carrier having a first side and a second side contiguous with the first side, a plurality of printhead dies each mounted on the first side of the carrier, an electrical circuit including a first portion disposed on the first side of the carrier and a second portion disposed on the second side of the carrier, and a plurality of electrical connectors each electrically coupled to the first portion of the electrical circuit and one of the printhead dies. The electrical circuit has a plurality of openings defined in the first portion thereof such that each of the openings are sized to accommodate one of the printhead dies, and has a first side facing the carrier and a second side opposite the first side thereof such that each of the electrical connectors are electrically coupled to the second side of the electrical circuit and one of the printhead dies.Type: GrantFiled: May 5, 2003Date of Patent: January 18, 2005Assignee: Hewlett-Packard Development Company, L.P.Inventors: David McElfresh, Noah Carl Lassar, Mohammad Akhavain, Brian J. Keefe, Joseph E. Scheffelin, Janis Horvath, Dale Dean Timm, Jr.
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Publication number: 20040218009Abstract: The described embodiments relate to methods and systems for forming and protecting electrical interconnect assemblies. In one embodiment, an electrical interconnect assembly forming method forms an electrical interconnect between one or more conductors of a first support structure and one or more conductors of a second support structure. The method also distributes a generally flowable material over the electrical interconnect and exposes the generally flowable material to conditions sufficient to render the generally flowable material into a generally non-flowable state that provides fluid protection to the electrical interconnect and supports the electrical interconnect to reduce stress concentration at the electrical interconnect.Type: ApplicationFiled: April 30, 2003Publication date: November 4, 2004Inventors: Mohammad Akhavain, Joseph E. Scheffelin, Noah Lassar, Conrad Lepe
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Patent number: 6799827Abstract: A carrier adapted to receive a plurality of printhead dies includes a substructure having a fluid manifold defined therein and a substrate mounted on the substructure, wherein the substrate is adapted to support the printhead dies. The substructure includes a fluid port communicating with the fluid manifold and at least one flush port communicating with the fluid manifold separate from the fluid port, and the substrate has a plurality of fluid passages defined therein with each of the fluid passages communicating with the fluid manifold.Type: GrantFiled: October 30, 2002Date of Patent: October 5, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventors: Joseph E. Scheffelin, James H. Sykora
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Patent number: 6789878Abstract: A printhead assembly includes a carrier having a fluid manifold defined therein, and a plurality of printhead dies each mounted on the carrier and including a first nozzle set and a second nozzle set. The fluid manifold includes a first chamber and a second chamber such that the first nozzle set of each of the printhead dies communicates with the first chamber of the fluid manifold and the second nozzle set of each of the printhead dies communicates with the second chamber of the fluid manifold.Type: GrantFiled: October 30, 2002Date of Patent: September 14, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventors: Joseph E. Scheffelin, Paul Mark Haines, Michael Martin, Melissa D. Boyd
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Publication number: 20040128831Abstract: The described embodiments relate to methods and systems for forming die packages. In one exemplary embodiment, the method for forming die packages contacts interface areas of a die assembly to keep the interface areas free of an insulative material. The method distributes a flowable insulative material around portions of the die assembly.Type: ApplicationFiled: December 19, 2003Publication date: July 8, 2004Inventors: Frank J. Bretl, Gary Powell, Donald L. Michael, Jefferson P. Ward, Joseph E. Scheffelin, Mohammad Akhavain
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Publication number: 20040100522Abstract: A fluid ejection assembly includes a substrate and a plurality of fluid ejection devices each mounted on the substrate. The substrate includes a frame formed of a first material and a body formed of a second material such that the body substantially surrounds the frame and forms a first side and a second side of the substrate with each of the fluid ejection devices being mounted on the first side of the substrate.Type: ApplicationFiled: October 8, 2003Publication date: May 27, 2004Inventors: Janis Horvath, Brian J. Keefe, Joseph E. Scheffelin, Mohammad Akhavin, David K. McElfresh, Noah Carl Lassar