Patents by Inventor Dean Van-John Roth

Dean Van-John Roth 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).

  • System and method comprising same for measurement and/or analysis of particles in gas stream
    Patent number: 7867779
    Abstract: A system and method for measuring and analyzing particles within a gas feed stream. In one aspect, the system includes a particle counter and a particle capture filter that are arranged in parallel. In another aspect, the system includes a purifying device to remove trace molecular impurities from a gas feed stream to reduce the presence of impurities.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: January 11, 2011
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Wayne Thomas McDermott, Richard Carl Ockovic, Dean Van-John Roth
  • Transmission of ultrasonic energy into pressurized fluids
    Patent number: 7439654
    Abstract: Ultrasonic probe comprising an elongate body having a first end and a second end, an ultrasonic transducer attached to the probe at or adjacent the first end, and an enlarged support section intermediate the ultrasonic transducer and the second end, wherein the enlarged support section has an equivalent diameter greater than an equivalent diameter of the body at any location between the enlarged support section and the ultrasonic transducer. The probe may be used to introduce ultrasonic energy into ultrasonic cleaning systems.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: October 21, 2008
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Wayne Thomas McDermott, Dean Van-John Roth, Richard Carl Ockovic
  • Transmission of Ultrasonic Energy into Pressurized Fluids
    Publication number: 20080202550
    Abstract: Ultrasonic probe comprising an elongate body having a first end and a second end, an ultrasonic transducer attached to the probe at or adjacent the first end, and an enlarged support section intermediate the ultrasonic transducer and the second end, wherein the enlarged support section has an equivalent diameter greater than an equivalent diameter of the body at any location between the enlarged support section and the ultrasonic transducer. The probe may be used to introduce ultrasonic energy into ultrasonic cleaning systems.
    Type: Application
    Filed: April 28, 2008
    Publication date: August 28, 2008
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Wayne Thomas McDermott, Dean Van-John Roth, Richard Carl Ockovic
  • Method for removal of flux and other residue in dense fluid systems
    Patent number: 7195676
    Abstract: Method for removing flux residue and defluxing residue from an article using a dense processing fluid and a dense rinse fluid is disclosed herein. In one embodiment, there is provided a method comprising: introducing the article comprising contaminants into a processing chamber; contacting the article with a dense processing fluid comprising a dense fluid, at least one processing agent, and optionally a cosolvent to provide a partially treated article; and contacting the partially treated article with a dense rinse fluid comprising the dense fluid and optionally the cosolvent to provide a treated article wherein an agitation source is introducing during at least a portion of the first and/or the second contacting step.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: March 27, 2007
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Wayne Thomas McDermott, Gene Everad Parris, Dean Van-John Roth, Hoshang Subawalla