Patents by Inventor Mark Voghell

Mark Voghell 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).

  • Cam contacting devices
    Publication number: 20040089254
    Abstract: The invention relates to improved cam contacting devices for use in internal combustion engines and preferably for use in internal combustion engines having variable valve timing. In particular, the use of ceramics including silicon nitride and silicon carbide have been demonstrated as providing effective cam contacting surfaces allowing an axially displaceable cam shaft having a variable profile cam to be run with resulting improvements in idle speed and volumetric efficiency.
    Type: Application
    Filed: July 7, 2003
    Publication date: May 13, 2004
    Inventors: Daniel Guy Pomerlau, Mark Voghell
  • Composite material structures having reduced signal attenuation
    Patent number: 5988300
    Abstract: The present invention relates to composite material structures having reduced signal attenuation properties. In particular, the invention relates to composite drillstring components with electromagnetic properties and acoustic properties that enable the use of electromagnetic, acoustic and nuclear sensing equipment to obtain data from a wellbore from within a drill pipe. In a specific embodiment, a composite tube is incorporated with end-fittings which enable its incorporation into a drillstring thereby permitting the use of logging equipment from within the composite tube.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: November 23, 1999
    Assignee: LWT Instruments, Inc.
    Inventors: Daniel Guy Pomerleau, Brian Spencer, Mark Voghell, Doug MacLean, Paul Pastushak
  • Composite material structures having reduced signal attentuation
    Patent number: 5944124
    Abstract: The present invention relates to composite material structures having reduced signal attenuation properties. In particular, the invention relates to composite drillstring components with electromagnetic properties and acoustic properties that enable the use of electromagnetic, acoustic and nuclear sensing equipment to obtain data from a wellbore from within a drill pipe. In a specific embodiment, a composite tube is incorporated with end-fittings which enable its incorporation into a drillstring thereby permitting the use of logging equipment from within the composite tube.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: August 31, 1999
    Assignee: LWT Instruments, Inc.
    Inventors: Dan Pomerleau, Brian Spencer, Mark Voghell, Doug MacLean, Paul Pastushak