Patents by Inventor Dae-ryong Yun

Dae-ryong Yun 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: 5884807
    Abstract: The present invention is a vending machine with the ability to accept multiple purchase requests per money transaction. As the vending machine dispensing receptacle is of limited size, a weight sensor determines if an article in the multiple dispensing sequence has been taken by the user, allowing for the subsequent article in the sequence to be dispensed. Additional features include error messages displayed to the user as well as an alarm to alert the user if an article has not been removed in some predetermined time.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: March 23, 1999
    Assignee: Kwangju Electronics Co., Ltd.
    Inventor: Dae-Ryong Yun
  • Patent number: 5644973
    Abstract: Disclosed is a device for brewing the roasted and ground beans of the coffee used in a vending machine, which comprises a ground beans receptacle for containing the roasted and ground beans of the coffee, a mixing means for mixing the ground beans of the coffee with a hot water, an extracting chamber for providing a space used to extract a coffee liquid, an extracting means for extracting the coffee liquid by jetting a pressurized air against the mixture of the roasted and ground beans and hot water, a filter mechanism arranged below the extracting chamber for filtering the coffee liquid, a reciprocating means for lowering and raising extracting chamber, and a sweeper for removing the residue remaining on the filter mechanism, characterized in that the filter mechanism further comprises a porous filter part for passing pure coffee liquid only, a support part for supporting the filter part not to be distorted by an external pressure, and a buffer arranged between the filter part and the support part for absorb
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: July 8, 1997
    Assignee: Kwangju Electronics Co., Ltd.
    Inventors: Tae Ho Kang, Dae-ryong Yun