Patents by Inventor Lo Tzung-I

Lo Tzung-I 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).

  • Actuating mechanism for padlock
    Patent number: 4938039
    Abstract: It is an improved padlock structure, in which the actuating mechanism is particularly designed to include a lock cylinder and, an actuating assembly; the actuating assembly further includes a T-shaped bolt, a front guide plate, a rear guide plate, a return spring, and a cam member with two steel balls. The major features of this lock are its single structure and having little or no trouble in use.
    Type: Grant
    Filed: May 9, 1989
    Date of Patent: July 3, 1990
    Inventor: Lo Tzung-I