Patents by Inventor Terrance Stephens

Terrance Stephens 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).

  • Trap configured to collect ink particle contaminants in response to a cleaning flow
    Patent number: 9061511
    Abstract: An apparatus includes an inkjet manifold with at least one ink supply port coupled to an ink supply and at least one ink delivery port. A flow path is between the ink supply and ink delivery ports, and the flow path includes a trap configured to collect particle contaminants in response to a pulsed cleaning flow and hold the particle contaminants during an operational flow.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: June 23, 2015
    Assignee: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Kai Melde, John S. Paschkewitz, Eric J. Shrader, Terrance Stephens
  • TRAP CONFIGURED TO COLLECT INK PARTICLE CONTAMINANTS IN RESPONSE TO A CLEANING FLOW
    Publication number: 20150109389
    Abstract: An apparatus includes an inkjet manifold with at least one ink supply port coupled to an ink supply and at least one ink delivery port. A flow path is between the ink supply and ink delivery ports, and the flow path includes a trap configured to collect particle contaminants in response to a pulsed cleaning flow and hold the particle contaminants during an operational flow.
    Type: Application
    Filed: December 22, 2014
    Publication date: April 23, 2015
    Inventors: Kai Melde, John S. Paschkewitz, Eric J. Shrader, Terrance Stephens
  • Trap configured to collect ink particle contaminants in response to a cleaning flow
    Patent number: 8979242
    Abstract: An apparatus includes an inkjet manifold with at least one ink supply port coupled to an ink supply and at least one ink delivery port. A flow path is between the ink supply and ink delivery ports, and the flow path includes a trap configured to collect particle contaminants in response to a pulsed cleaning flow and hold the particle contaminants during an operational flow.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: March 17, 2015
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Kai Melde, John S. Paschkewitz, Eric J. Shrader, Terrance Stephens
  • TRAP CONFIGURED TO COLLECT INK PARTICLE CONTAMINANTS IN RESPONSE TO A CLEANING FLOW
    Publication number: 20140168315
    Abstract: An apparatus includes an inkjet manifold with at least one ink supply port coupled to an ink supply and at least one ink delivery port. A flow path is between the ink supply and ink delivery ports, and the flow path includes a trap configured to collect particle contaminants in response to a pulsed cleaning flow and hold the particle contaminants during an operational flow.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 19, 2014
    Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Kai Melde, John S. Paschkewitz, Eric J. Shrader, Terrance Stephens
  • Inkjet jet stack external manifold
    Publication number: 20070153065
    Abstract: An inkjet external ink manifold is provided that allows for use of a jet stack that does not internally contain ink manifolds. The external ink manifold has a manifold body that includes one or more ink manifold chambers and includes ports arranged to connect the chambers to one or more ink reservoirs. The external ink manifold further includes an adhesive layer overlying and sealing the ink manifold chambers. The adhesive layer includes a plurality of ports arranged to connect the external ink manifold chambers to the jet stack.
    Type: Application
    Filed: January 4, 2006
    Publication date: July 5, 2007
    Inventors: Jonathan Brick, Jim Stevenson, John Andrews, Richard Schmachtenberg, Dan Massopust, Sharon Berger, Terrance Stephens, Chad Stenes
  • Drop generator
    Publication number: 20070120896
    Abstract: A drop generator including a pressure chamber defined by a chamber wall structure, a diaphragm plate disposed on the chamber wall structure and covering the pressure chamber, a piezoelectric transducer attached to the diaphragm plate, and a recess formed in the diaphragm plate and underlying an associated peripheral portion of the piezoelectric transducer such that the associated peripheral portion overhangs the recess.
    Type: Application
    Filed: November 30, 2005
    Publication date: May 31, 2007
    Inventors: Terrance Stephens, Dan Massopust
  • Drop generating apparatus
    Publication number: 20050151787
    Abstract: A drop emitting device includingan array of finger manifolds, each finger manifold having longitudinally separated first and second ends, wherein the first end comprises a fluid receiving end; a plurality of drop generators, each fluidically coupled to one of the finger manifolds; and a respective vent structure fluidically coupled to each of the finger manifolds for damping pressure perturbations in such finger manifold.
    Type: Application
    Filed: January 12, 2004
    Publication date: July 14, 2005
    Inventors: John Brookfield, James Padgett, Terrance Stephens