Patents by Inventor Ei Nigorikawa

Ei Nigorikawa 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).

  • Fastener applying device having a plurality of sliders
    Patent number: 4368839
    Abstract: This invention relates to a device for fixing fasteners to the flaps of corrugated cardboard boxes for sealing the flaps. With the fastener placed across the adjoining edges of at least two flaps, piercing nails in the form of a cow horn and attached to a pair of turnable pieces on the fastener are driven into the flaps by the device. The device is characterized in that two reciprocally movable sliders (12, 13) move to drive a cutting blade (17), causing the blade to separate a fastener from other fasteners, and subsequently drive pivotal members (29a, 29b) to depress the turnable pieces on the fastener, driving the piercing nails into the flaps. Fasteners can be fixed in place easily and reliably.
    Type: Grant
    Filed: May 6, 1980
    Date of Patent: January 18, 1983
    Assignees: Matsushita Electric Industrial Co., Ltd., Mabuchi Co., Ltd.
    Inventors: Kouichi Okamura, Nobuya Mizumura, Ei Nigorikawa