Patents by Inventor Jeong M. Choi

Jeong M. Choi 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: 5544853
    Abstract: The present invention relates to a damper device adapted for controlling the flow of cooled air in freezing machines, refrigerators and air conditioners. The damper device according to one preferred embodiment includes a damper casing having a damper opening of a predetermined size, an opening/closing member slidable in the damper casing for opening/closing the damper opening, a guide mechanism provided at both sides of the opening/closing member, an electromagnet fixed at an end of the opening/closing member having coils therearound, a permanent magnet fixed to one side of the damper casing, and a plurality of elastic members along the inner wall of the damper casing for elastically supporting the opening/closing member.
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: August 13, 1996
    Assignee: Golstar Co., Ltd.
    Inventor: Jeong M. Choi