Patents by Inventor Ching L. Hsieh

Ching L. Hsieh 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).

  • Drum head lug assembly
    Patent number: 4693163
    Abstract: An instrumental musical drum head lug assembly which has a kidney shaped pivot slot on the fastener portion. The pivot slot allows a dowel to be released by turning the securement bolt only a few turns. The pivot slot is wider than the diameter of the dowel, thereby allowing the latch to drop as the securement bolt is loosened. Then the lug can be pulled outwards, so as to release the tension on the tension rod. The slot also allows the lug to be opened so as to provide a wide clearance between the lug and the fastener.
    Type: Grant
    Filed: August 4, 1986
    Date of Patent: September 15, 1987
    Inventor: Ching L. Hsieh