Patents by Inventor Mark S. Warner

Mark S. Warner 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).

  • Wrenches having two driving stems pivotally connected with each other
    Patent number: 6688196
    Abstract: A wrench having two driving stems pivotally connected with each other. One of the driving stems has a main stem and a female joint protruding from a rectangular or cylindrical section of the main stem with a hole at a center thereof. The other driving stem has the other main stem and a male joint projecting out of the center of a rectangular or cylindrical section of the main stem. The male joint and the female joint are engaged with each other via a coupler such as a roll pin. Therefore, without using an additional hinge or other mechanical coupler, these two driving stems are pivotally connected with each other.
    Type: Grant
    Filed: April 6, 2002
    Date of Patent: February 10, 2004
    Inventor: Mark S. Warner
  • Wrenches having two driving stems pivotally connected with each other
    Patent number: 6443039
    Abstract: A wrench having two driving stems pivotally connected with each other. One of the driving stems has a main stem and a female joint protruding from a rectangular or cylindrical section of the main stem with a hole at a center thereof. The other driving stem has the other main stem and a male joint projecting out of the center of a rectangular or cylindrical section of the main stem. The male joint and the female joint are engaged with each other via a coupler such as a roll pin. Therefore, without using an additional hinge or other mechanical coupler, these two driving stems are pivotally connected with each other.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: September 3, 2002
    Inventor: Mark S. Warner
  • Wrenches having two driving stems pivotally connected with each other
    Publication number: 20020108473
    Abstract: A wrench having two driving stems pivotally connected with each other. One of the driving stems has a main stem and a female joint protruding from a rectangular or cylindrical section of the main stem with a hole at a center thereof. The other driving stem has the other main stem and a male joint projecting out of the center of a rectangular or cylindrical section of the main stem. The male joint and the female joint are engaged with each other via a coupler such as a roll pin. Therefore, without using an additional hinge or other mechanical coupler, these two driving stems are pivotally connected with each other.
    Type: Application
    Filed: April 6, 2002
    Publication date: August 15, 2002
    Inventor: Mark S. Warner
  • Uni-hex key wrench
    Patent number: 6314844
    Abstract: A wrench comprising two driving stems pivotally connected with each other. One of the driving stems has a main body and a flat portion, protruding from the main body with a hole at a center thereof. The other driving stem has the other main body and the other flat portion protruding from the other main body with at a center thereof. A pair of hinges having two holes aligned with the holes of the flat portions protruding from the main bodies of the driving stems, respectively, is used. Two sets of bolts and nuts are used to be threaded through the holes of the hinges, the flat portion protruding from main bodies of the first and the second driving stems, respectively.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: November 13, 2001
    Inventor: Mark S. Warner