Patents by Inventor Jan Anne Muis

Jan Anne Muis 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: 6253667
    Abstract: An emulsifying assembly comprising a milk supply duct and a mixing device for mixing at least steam and milk for preparing hot milk for cappuccino and similar beverages. The mixing device comprises at least one steam inlet, at least one milk inlet and an outlet while a first end of the milk supply duct is connected to the at least one milk inlet, a second open end of the at least one milk supply duct is situated at a height lower than the highest point of the at least one milk supply duct, while further, in use, the second open end of the milk supply duct is in fluid communication with a milk-filled milk container. The emulsifying assembly further comprises an aeration valve which is connected to the at least one milk supply duct, and with which the at least one milk supply duct can be aerated when the aeration valve is in its opened position. The milk container is placed in a cooling unit. The milk supply duct extends substantially inside the cooling unit.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: July 3, 2001
    Assignee: Sara Lee/DE N.V.
    Inventors: Andre Lüssi, Petrus Josephus Carolus Piscaer, Jan Anne Muis
  • Patent number: 6183800
    Abstract: According to the method for preparing frothed milk or café crème, milk concentrate or coffee concentrate is mixed with water, using a venturi chamber. The venturi chamber comprises a water inlet, a concentrate inlet and an outlet. Further, a whirl chamber, located downstream of the venturi chamber, is used, which is in fluid communication with the outlet. The water is supplied under pressure via the water inlet to the venturi chamber, so that a reduced pressure is created in the venturi chamber. The concentrate inlet is brought into fluid communication with a stock of milk or coffee concentrate, so that, as a result of the reduced pressure in the venturi chamber, via the concentrate inlet, milk or coffee concentrate is sucked into the venturi chamber. The milk or coffee concentrate and the water then flow together via the outlet to the whirl chamber, and the milk or coffee concentrate and the water are beaten in the whirl chamber to form frothed milk or café crème.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: February 6, 2001
    Assignee: Sara Lee/DE N.V.
    Inventors: Adrianus Petrus Matthijs van Straten, Jan Anne Muis, Willem Nanko Mels, E. H. Rusche, A. J. Oude Wahsink