Patents by Inventor Chung-Min Chang

Chung-Min Chang 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).

  • Publication number: 20040100802
    Abstract: A separation device of a lamp holder and a fixing seat includes a lamp holder, a lamp connecting seat, an electrode, a fixing seat, a cover plate, a fixing bracket, and two safety locking members. When the lamp holder registers the fixing seat, the lamp holder is rotated relative to the fixing seat, so that the lamp holder is integrally combined with the fixing seat. Thus, the separation device is assembled and disassembled easily and conveniently. In addition, the lamp can be inserted into the lamp connecting seat only when each of the two safety locking members is exactly locked on the lamp holder and the fixing seat, thereby forming a safety locking effect.
    Type: Application
    Filed: November 26, 2002
    Publication date: May 27, 2004
    Inventor: Chung-Min Chang
  • Publication number: 20040033713
    Abstract: A separation device of an electronic stabilizer body and a fixing seat includes a body, an electronic stabilizer, a socket, a fixing seat, and two safety locking members. The body has an inner wall formed with a receiving chamber for receiving the electronic stabilizer and the socket which is rested on the electronic stabilizer. The fixing seat has one end locked on a closed end of the body. Each of the two safety locking members is mounted and locked between the body and the fixing seat, so that the body and the fixing seat may be locked with each other, thereby integrally combining the body with the fixing seat. Thus, the separation device may be assembled and disassembled easily and conveniently, thereby facilitating replacement and maintenance of the separation device of the present invention.
    Type: Application
    Filed: August 13, 2002
    Publication date: February 19, 2004
    Inventor: Chung-Min Chang
  • Publication number: 20030075351
    Abstract: A wall hanging type switch device of a ceiling fan includes a receiver, and a control switch having an emitter for controlling the receiver in a wireless manner, and a face plate removably mounted on the emitter. Thus, the face plate may be detached and removed from the body of the emitter easily and rapidly, thereby facilitating replacing the battery, and thereby facilitating the user adjusting the codes of the encoder to correspond to the codes of the encoder of the receiver.
    Type: Application
    Filed: October 23, 2001
    Publication date: April 24, 2003
    Inventor: Chung-Min Chang
  • Publication number: 20020088682
    Abstract: A clutch for an electric garage door includes a sliding base slidably mounted on a rail that is mounted in the garage. The sliding base includes two chain passages defined in two opposite sides thereof. A pawl is retractably mounted in the sliding base and partially extends into the first chain passage. A connection block is attached to a chain and is driven by the drive device. The connection block includes a cavity defined to receive the pawl in the first chain passage. Then the sliding base can be moved to pull and open the door because a linkage is connected between the sliding base and the door. The pawl is moved down from the cavity of the connection block when the cable is pulled. Consequently, the sliding base can be manually moved to open the door when there is a power failure.
    Type: Application
    Filed: January 11, 2001
    Publication date: July 11, 2002
    Inventor: Chung-Min Chang
  • Patent number: 6038735
    Abstract: A handle for a compact tool which includes two handles and each of the handles has a tool member pivotally connected thereto. Each handle includes a connecting plate from which an operation end longitudinally extends, and two side walls bent downwardly from two respective opposite sides thereof. Each of the side walls has an engaging end extending longitudinally beyond the operation end and a tool member is pivotally connected between the two engaging ends. Two recesses are defined respectively between each of the engaging end and the operation end.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: March 21, 2000
    Inventor: Chung-Min Chang
  • Patent number: D414092
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: September 21, 1999
    Inventor: Chung-Min Chang