Patents by Inventor Pen-Lin Liao

Pen-Lin Liao 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).

  • Patent number: 4856189
    Abstract: A method for manufacturing multiple push-button and conductive members for dual-in-line package (DIP) switches includes the steps of: integrally forming a multiple push-button member and a conductive member in respective molds; superimposingly combining the push-button member and the conductive member together for being pressed as a single solid unit; and cutting each combined solid unit into a plurality of push-button units. Each of the integrally formed push-button members includes an enclosed frame, a plurality of partitioning ribs symmetrically spaced in the enclosed frame, and a predetermined quantity of push-button bodies respectively provided in rows between the partitioning ribs; and each conductive member includes a pair of supporting bands formed in parallel in conjunction with the enclosed frame, and a predetermined quantity of conductive pieces integrally connected in rows between the supporting bands.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: August 15, 1989
    Inventor: Pen-Lin Liao