Patents by Inventor Nobuaki Tsurukawa

Nobuaki Tsurukawa 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).

  • Adjustable-position pivot mechanism for pivoted windows
    Patent number: 4142272
    Abstract: Each of paired pivot mechanisms pivotally holding a window sash within a supporting frame comprises a stationary base screwed to one of the constituent members of the supporting frame and a pivot-carrying movable base fitted over the stationary base. By manipulation of a pair of adjusting screws the movable base can be adjustably moved relatively to the stationary base in the longitudinal direction of the supporting frame member and, if desired, away from or back toward the same. The movable base is screwed to the supporting frame member via the stationary base in a desired position. The mechanism is equally applicable to either vertically or horizontally pivoted windows.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: March 6, 1979
    Assignee: Yoshida Kogyo K.K.
    Inventors: Eiryo Oogami, Nobuaki Tsurukawa