Patents by Inventor Maria Elena Perdomo Ackerman

Maria Elena Perdomo Ackerman 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: 4064795
    Abstract: An automatic coffee brewer including a water heating tank, a funnel-like holder for ground coffee, a siphon device for dispensing a predetermined amount of hot water from the tank through the grounds holder, and a bypass valve for directing approximately 40% of the hot water around the grounds and directly to an unheated, thermo-insulated beaker so that the resultant brew has extracted about 60% of the soluble solids in the coffee to yield a better tasting brew free of bitterness and astringency. The use of the thermo-insulated beaker enables the brewed coffee to be kept hot without further heating for several hours and avoids bitterness derived by continuous heating.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: December 27, 1977
    Inventor: Maria Elena Perdomo Ackerman