Patents by Inventor Daniel J. Davidson

Daniel J. Davidson 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).

  • Molten material application machine
    Patent number: 6836616
    Abstract: The present invention generally relates to a hot molten adhesive application machine. More specifically the present invention discloses a unique hot melt adhesive application machine having a novel construction whereby the reservoir of molten adhesive material is heated from within the molten adhesive. The adhesive pump, discharge hoses, and discharge applicators are heated by electrical resistance heating elements that may operate on 120 or 240 volt current. Further, a novel axial pump piston is disclosed whereby the pump cylinder bore may be machined to a lessor tolerance standard than previous pumps of this type.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: December 28, 2004
    Assignee: Valco Cincinnati, Inc.
    Inventors: Chris M. Jamison, Daniel J. Davidson
  • Molten material application machine
    Publication number: 20030180035
    Abstract: The present invention generally relates to a hot molten adhesive application machine. More specifically the present invention discloses a unique hot melt adhesive application machine having a novel construction whereby the reservoir of molten adhesive material is heated from within the molten adhesive. The adhesive pump, discharge hoses, and discharge applicators are heated by electrical resistance heating elements that may operate on 120 or 240 volt current. Further, a novel axial pump piston is disclosed whereby the pump cylinder bore may be machined to a lessor tolerance standard than previous pumps of this type.
    Type: Application
    Filed: February 13, 2003
    Publication date: September 25, 2003
    Applicant: Valco Cincinnati, Inc.
    Inventors: Chris M. Jamison, Daniel J. Davidson