Patents by Inventor Jon A. Crabtree
Jon A. Crabtree 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).
-
Patent number: 12138937Abstract: An example printing fluid pen comprises a plurality of fluid ports, including an inlet port to direct fluid from a fluid reservoir to a fluid ejection device, and a recirculation port to direct fluid from the fluid ejection device out of the inkjet pen. The example pen also includes a plurality of parallel fluid pressure regulators fluidly coupled with the inlet port, each of the plurality of parallel fluid pressure regulators to receive fluid from the inlet fluid port.Type: GrantFiled: May 29, 2020Date of Patent: November 12, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Daniel D Dowell, Ronald Ender, Seth Haddix, Jon A Crabtree, Jeffrey F Bell
-
Publication number: 20230202184Abstract: An example printing fluid pen comprises a plurality of fluid ports, including an inlet port to direct fluid from a fluid reservoir to a fluid ejection device, and a recirculation port to direct fluid from the fluid ejection device out of the inkjet pen. The example pen also includes a plurality of parallel fluid pressure regulators fluidly coupled with the inlet port, each of the plurality of parallel fluid pressure regulators to receive fluid from the inlet fluid port.Type: ApplicationFiled: May 29, 2020Publication date: June 29, 2023Applicant: Hewlett-Packard Development Company, L.P.Inventors: Daniel D Dowell, Ronald Ender, Seth Haddix, Jon A Crabtree, Jeffrey F Bell
-
Patent number: 10946685Abstract: In one example, a process to solidify a water-based printing fluid printed on a substrate includes flushing nonvolatile solvent in the printing fluid into the substrate with the water in the printing fluid.Type: GrantFiled: June 26, 2019Date of Patent: March 16, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: Yubai Bi, Alex Veis, Gregg A. Lane, Jon A. Crabtree
-
Patent number: 10844236Abstract: An example of a liquid bonding agent, for a liquid ink including a wax emulsion in an amount less than 1% actives, includes a calcium salt, the wax emulsion, an acetylenic surfactant, a glycol, and a balance of water. The wax emulsion is present in the liquid bonding agent in an amount ranging from greater than 0% actives to about 2% actives. The liquid bonding agent is to be digitally printed with a thermal inkjet printhead on a substrate under the liquid ink.Type: GrantFiled: July 20, 2016Date of Patent: November 24, 2020Assignee: Hewlett-Packard Development Company, L.P.Inventors: Max Yen, Yi-Hua Tsao, Marisa Weaver, Elizabeth Ann Visnyak, Jessica Rikki Vosler, Jon A. Crabtree, George Sarkisian, Yubai Bi, Maria Alexeevna Kabalnova
-
Publication number: 20190315145Abstract: In one example, a process to solidify a water-based printing fluid printed on a substrate includes flushing nonvolatile solvent in the printing fluid into the substrate with the water in the printing fluid.Type: ApplicationFiled: June 26, 2019Publication date: October 17, 2019Inventors: Yubai Bi, Alex Veis, Gregg A. Lane, Jon A. Crabtree
-
Patent number: 10350929Abstract: In one example, a process to solidify a water-based printing fluid printed on a substrate includes flushing nonvolatile solvent in the printing fluid into the substrate with the water in the printing fluid.Type: GrantFiled: January 21, 2016Date of Patent: July 16, 2019Assignee: Hewlett-Packard Development Company, L.P.Inventors: Yubai Bi, Alex Veis, Gregg A. Lane, Jon A Crabtree
-
Publication number: 20190136078Abstract: An example of a liquid bonding agent, for a liquid ink including a wax emulsion in an amount less than 1% actives, includes a calcium salt, the wax emulsion, an acetylenic surfactant, a glycol, and a balance of water. The wax emulsion is present in the liquid bonding agent in an amount ranging from greater than 0% actives to about 2% actives. The liquid bonding agent is to be digitally printed with a thermal inkjet printhead on a substrate under the liquid ink.Type: ApplicationFiled: July 20, 2016Publication date: May 9, 2019Inventors: Max Yen, Yi-Hua Tsao, Marisa Weaver, Elizabeth Ann Visnyak, Jessica Rikki Vosler, Jon A. Crabtree, George Sarkisian, Yubai Bi, Maria Alexeevna Kabalnova
-
Publication number: 20180229524Abstract: In an example implementation, a substrate coating system includes a resist printing device to print resist fluid onto a selected area of a substrate surface. The system includes an analog coating device to apply coating fluid onto the entire substrate surface, wherein the resist fluid resists application of the coating fluid on the selected area of the substrate surface.Type: ApplicationFiled: February 19, 2018Publication date: August 16, 2018Applicant: HP SCITEX LTD.Inventors: Jason Swei, Colin Egan, Guillermo Martinez Ariza, Yubai Bi, Jon A. Crabtree, Stephen W. Bauer
-
Patent number: 9221266Abstract: Fluid flux correction is disclosed. An example method of fluid flux correction includes displacing a fluid volume in a fluid reservoir with a compliant element. The method also includes absorbing fluid surges caused by variations in fluid flux to reduce distortion of at least one ink nozzle meniscus and maintain consistent fluid ejection.Type: GrantFiled: January 13, 2012Date of Patent: December 29, 2015Assignee: Hewlett-Parkard Development Company, L.P.Inventors: Benjamin H. Wood, Jon A. Crabtree, Orestes Alejandro Bihun, Lawrence E. Gibson, Louis C. Ramsay, John M. Watanabe
-
Publication number: 20150116429Abstract: Fluid flux correction is disclosed. An example method of fluid flux correction includes displacing a fluid volume in a fluid reservoir with a compliant element. The method also includes absorbing fluid surges caused by variations in fluid flux to reduce distortion of at least one ink nozzle meniscus and maintain consistent fluid ejection.Type: ApplicationFiled: January 13, 2012Publication date: April 30, 2015Applicant: Hewlett-Packard Development Company, L.P.Inventors: Benjamin H. Wood, Jon A. Crabtree, Orestes Alejandro Bihun, Lawrence E. Gibson, Louis C. Ramsay, John M. Watanabe
-
Patent number: 8333459Abstract: A printing device (10) including a substrate (22) having an aperture (20) extending therethrough, wherein the aperture includes a side wall and defines a liquid ink flow path, an ink firing chamber (24) fluidically connected to the aperture, and a coating positioned on the side wall of the aperture, the coating being impervious to etching by liquid ink, and wherein the coating is chosen from one of silicon dioxide, aluminum oxide, hafnium oxide and silicon nitride.Type: GrantFiled: April 29, 2008Date of Patent: December 18, 2012Assignee: Hewlett-Packard Development Company, L.P.Inventors: Rio Rivas, Jon A. Crabtree, Eric L. Nikkel, Siddhartha Bhowmik, Bradley D. Chung, Samson Berhane
-
Publication number: 20110018938Abstract: A printing device (10) including a substrate (22) having an aperture (20) extending therethrough, wherein the aperture includes a side wall and defines a liquid ink flow path, an ink firing chamber (24) fluidically connected to the aperture, and a coating positioned on the side wall of the aperture, the coating being impervious to etching by liquid ink, and wherein the coating is chosen from one of silicon dioxide, aluminum oxide, hafnium oxide and silicon nitride.Type: ApplicationFiled: April 29, 2008Publication date: January 27, 2011Inventors: Rio Rivas, Jon A. Crabtree, Eric L. Nikkel, Siddhartha Bhowmik, Bradley D. Chung, Samson Berhane
