Patents by Inventor Cory John Koski

Cory John Koski 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).

  • Handhole cover
    Patent number: 6683247
    Abstract: A handhole cover includes a body adapted to cover a handhole. The body has a front surface, a rear surface, and a peripheral edge. Engagement members protrude rearwardly and outwardly from the rear surface adjacent to the peripheral edge. The engagement members are adapted to engage a peripheral edge of the handhole and are spaced about the peripheral edge to provide a secure engagement of the body in the handhole. At least one of the engagement members is a rotatable locking member having a helical engagement surface. The rotatable locking member is selectively rotated between a locking position and a release position.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: January 27, 2004
    Assignee: Drader Manufacturing Industries Ltd.
    Inventors: Gordon John McTavish, Steven Joseph Koski, Cory John Koski