Patents by Inventor David M. Johnson

David M. Johnson 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).

  • Publication number: 20180243520
    Abstract: A vaporizer pod for use in a vaporizer is shown and described herein. The vaporizer pod defines a one-way channel therethrough, extending from a bottom end of the vaporizer pod to a top end. The vaporizer pod may include a valve disposed at the top end and a valve disposed at the bottom end, whereby the valves open the one-way channel as the user draws air through the vaporizer. The valves rest against and close a plurality of air channels to prevent the vaporizer liquid or wax from spilling out of the pod when the user is not drawing air through the vaporizer. The vaporizer pod may be reusable or disposable, whereby the reusable vaporizer pod includes a main body split into an upper and lower tube which the user may pull apart to load vaping material into the vaporizer pod. The disposable vaporizer pod includes a unitary main body.
    Type: Application
    Filed: February 26, 2018
    Publication date: August 30, 2018
    Inventors: David M. Johnson, Charles H. Melander, Barak Rigbi
  • Patent number: 9863711
    Abstract: Embodiments are directed to a molded plastic object that includes at least one vapor chamber within the plastic object. A wicking material is in contact with at least a portion of an inner wall of the vapor chamber. A working fluid located within the vapor chamber is configured to distribute heat from warmer regions of the plastic object to cooler regions of the plastic object. In some embodiments, the molded plastic object is part or all of a solid inkjet printhead.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: January 9, 2018
    Assignee: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: John S. Paschkewitz, David M. Johnson
  • Publication number: 20170354186
    Abstract: The disclosure relates to an oven assembly configured for use with a personal electronic vaporizer. Some versions of the oven assembly may include features such as a base, an outer wall extending from the base, a first chamber defined by the outer wall and the base, an oven element disposed in the first chamber, a second chamber defined by the oven element, and at least one opening defined by the oven element. Some versions of oven assembly may be configured to pass heated air therethrough. Some versions of oven assembly may include features such as a heating element disposed in the chamber and configured to be electrically coupled with the vaporizer when the oven assembly is disposed in an oven receiving area of the vaporizer. The heating element may be configured to heat air within the chamber.
    Type: Application
    Filed: June 9, 2017
    Publication date: December 14, 2017
    Inventors: David M. Johnson, Charles H. Melander, Michael G. Terry, Curtis R. Berry
  • Publication number: 20170303587
    Abstract: The disclosure relates to an oven assembly for use with a personal electronic vaporizer configured to receive the oven assembly and heat a medium therein. The oven assembly may include a cup for use in heating the medium. The cup may define a pocket therein with a shaft extending into the pocket from a base plate. The shaft defines a shaft channel extending from the exterior of the cup to the pocket. As air is drawn through the personal electronic vaporizer, the air travels around the exterior of the cup and into the shaft channel to enter the pocket. The medium disposed therein is heated and vaporized and carried along to the user in the stream of air after it leaves the pocket.
    Type: Application
    Filed: April 20, 2017
    Publication date: October 26, 2017
    Inventors: David M. Johnson, Charles H. Melander, Michael G. Terry, Curtis R. Berry
  • Patent number: 9623548
    Abstract: The invention relates to a shock absorbing shingle removing tool, and more particularly, to a shock absorbing shingle removing tool, which can safeguard users from fatigue and injury accumulated from repeated contact between the blade of traditional roof removing device and fasteners which often occurs in the act of removing roof shingle.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: April 18, 2017
    Inventor: David M. Johnson
  • Publication number: 20160356552
    Abstract: Embodiments are directed to a molded plastic object that includes at least one vapor chamber within the plastic object. A wicking material is in contact with at least a portion of an inner wall of the vapor chamber. A working fluid located within the vapor chamber is configured to distribute heat from warmer regions of the plastic object to cooler regions of the plastic object. In some embodiments, the molded plastic object is part or all of a solid inkjet printhead.
    Type: Application
    Filed: August 23, 2016
    Publication date: December 8, 2016
    Inventors: John S. Paschkewitz, David M. Johnson
  • Patent number: 9423188
    Abstract: Embodiments are directed to a molded plastic object that includes at least one vapor chamber within the plastic object. A wicking material is in contact with at least a portion of an inner wall of the vapor chamber. A working fluid located within the vapor chamber is configured to distribute heat from warmer regions of the plastic object to cooler regions of the plastic object. In some embodiments, the molded plastic object is part or all of a solid inkjet printhead.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: August 23, 2016
    Assignee: Palo Alto Research Center Incorporated
    Inventors: John S. Paschkewitz, David M. Johnson
  • Publication number: 20160227838
    Abstract: The disclosure relates to a personal electronic vaporizer configured to receive a selected oven assembly and heat the medium therein in accordance with a heating profile associate with the selected oven assembly. The personal electronic vaporizer may define a pathway entirely surrounded by a material. The material is preferably an inert material such as glass or a material otherwise desirable to channel the vapors emitted by the heated medium to the user. The user may swap or select a different oven assembly associated with a different heating profile. The first oven assembly is thereafter removed from the personal electronic vaporizer and replaced with the newly selected oven assembly. The personal electronic vaporizer may automatically recognize the particular selected oven assembly and heat the substance therein according to a predefined heating profile associate with the oven assembly.
    Type: Application
    Filed: February 2, 2016
    Publication date: August 11, 2016
    Inventors: David M. Johnson, Charles H. Melander, Michael G. Terry, Curtis R. Berry
  • Patent number: 9261452
    Abstract: Embodiments are directed to a host structure that includes a waveguide configured to deliver measurement light to a compartment at least partially within the host structure. The compartment is configured to reversibly engage a fluidic optical cartridge. The host structure also includes a detector configured to receive and process output light emanating from the fluidic optical cartridge as well as electronics to process signals from the detector.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: February 16, 2016
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Joerg Martini, Noble M. Johnson, Michael I. Recht, David M. Johnson, Tim Curley, Peter Kiesel, Martin Sheridan
  • Patent number: 9221046
    Abstract: An air displacement pipette includes a segmented, stepped piston configured to displace additional air at a higher velocity during a blowout stroke, thereby enabling improved dispensing accuracy by more completely dislodging adhering liquid from a pipette tip following the preceding dispensing stroke.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: December 29, 2015
    Assignee: Rainin Instrument, LLC
    Inventors: James S Petrek, David M Johnson
  • Patent number: 9211712
    Abstract: A print head includes an aperture plate and a plurality of duplicate, injection molded, jet modules that are coupled to the aperture plate. Each of the jet modules includes a plurality of jets and corresponding ink supply cavity that seals against the aperture plate and provides ink to the jets. Each jet module further includes a registration member and an edge alignment feature. The registration member holds the jet module in place relative to a corresponding registration member of the aperture plate. The edge alignment feature overlaps a corresponding alignment feature on a neighboring one of the jet modules in a z-direction and minimizes misalignment between the jet module and the neighboring jet module.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: December 15, 2015
    Assignee: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventor: David M. Johnson
  • Publication number: 20150282530
    Abstract: An apparatus comprising a check valve may be utilized to transfer E-liquid from a storage container into an electronic vaporization device, such that unintended leakage of the E-liquid may not occur. An apparatus comprising a check valve, wherein the apparatus is pre-loaded with E-liquid, may be used to dispense liquid into an electronic vaporization device.
    Type: Application
    Filed: April 7, 2015
    Publication date: October 8, 2015
    Inventors: David M. Johnson, Charles H. Melander
  • Publication number: 20150209777
    Abstract: An air displacement pipette includes a segmented, stepped piston configured to displace additional air at a higher velocity during a blowout stroke, thereby enabling improved dispensing accuracy by more completely dislodging adhering liquid from a pipette tip following the preceding dispensing stroke.
    Type: Application
    Filed: January 30, 2014
    Publication date: July 30, 2015
    Inventors: James S. Petrek, David M. Johnson
  • Publication number: 20150183216
    Abstract: A print head includes an aperture plate and a plurality of duplicate, injection molded, jet modules that are coupled to the aperture plate. Each of the jet modules includes a plurality of jets and corresponding ink supply cavity that seals against the aperture plate and provides ink to the jets. Each jet module further includes a registration member and an edge alignment feature. The registration member holds the jet module in place relative to a corresponding registration member of the aperture plate. The edge alignment feature overlaps a corresponding alignment feature on a neighboring one of the jet modules in a z-direction and minimizes misalignment between the jet module and the neighboring jet module.
    Type: Application
    Filed: December 27, 2013
    Publication date: July 2, 2015
    Inventor: David M. Johnson
  • Publication number: 20150177119
    Abstract: Embodiments are directed to a host structure that includes a waveguide configured to deliver measurement light to a compartment at least partially within the host structure. The compartment is configured to reversibly engage a fluidic optical cartridge. The host structure also includes a detector configured to receive and process output light emanating from the fluidic optical cartridge as well as electronics to process signals from the detector.
    Type: Application
    Filed: December 23, 2013
    Publication date: June 25, 2015
    Inventors: Joerg Martini, Noble M. Johnson, Michael I. Recht, David M. Johnson, Tim Curley, Peter Kiesel, Martin Sheridan
  • Publication number: 20150176917
    Abstract: Embodiments are directed to a molded plastic object that includes at least one vapor chamber within the plastic object. A wicking material is in contact with at least a portion of an inner wall of the vapor chamber. A working fluid located within the vapor chamber is configured to distribute heat from warmer regions of the plastic object to cooler regions of the plastic object. In some embodiments, the molded plastic object is part or all of a solid inkjet printhead.
    Type: Application
    Filed: December 23, 2013
    Publication date: June 25, 2015
    Applicant: Palo Alto Research Center Incorporated
    Inventors: John S. Paschkewitz, David M. Johnson
  • Publication number: 20150177118
    Abstract: Embodiments are directed to an apparatus that includes a fluidic structure and optical components. The fluidic structure includes a transparent channel through which objects in an analyte fluid can travel along respective paths during operation of the apparatus. The optical components are configured to provide measurement light to the objects traveling through the transparent channel. The fluidic structure is configured to reversibly engage with a host structure. The host structure includes a source of the measurement light and electronics to receive and process output light emanating from the objects traveling in the channel. The fluidic structure makes an air-tight seal when engaged with the host structure.
    Type: Application
    Filed: December 23, 2013
    Publication date: June 25, 2015
    Inventors: David M. Johnson, Noble M. Johnson, Michael I. Recht, Joerg Martini, Tim Curley, Peter Kiesel, Martin Sheridan
  • Patent number: 8732184
    Abstract: A system and method for remotely displaying a plurality of data items is disclosed. The system determines a total quantity of displayable data items and optionally receives an indication of a display control size from a remote client. The server stores a threshold value indicating a relationship between a quantity of data items and a size of a display control. The server compares the quantity of data items and the received indication of the display control size. If the comparison exceeds the threshold value, the server sends a subset of the items to the remote client for display, and sends additional items as requested by the remote client. If the comparison is less than the threshold value, the server sends each of the items to the remote client for display. The server repeats this comparison for changes in the quantity of data items or the size of the display control.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: May 20, 2014
    Assignee: Applied Systems, Inc.
    Inventors: Paul T. Klawitter, Robert S. Gallagher, David M. Johnson
  • Publication number: 20140074821
    Abstract: A system has a data storage device accessible by a processor. The system is operable to store items and regulate how much of the item data is displayable on an electronic device. In addition, the system is operable to generate tabular output related to the item data.
    Type: Application
    Filed: April 5, 2013
    Publication date: March 13, 2014
    Applicant: APPLIED SYSTEMS, INC.
    Inventors: BART J. BAILEY, ROBERT E. GORCZOWISKI, PHILIP J. SMITH, MICHAEL D. VOLLMER, PAUL T. KLAWITTER, ROBERT S. GALLAGHER, DAVID M. JOHNSON
  • Patent number: D795662
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: August 29, 2017
    Inventor: David M. Johnson