Patents by Inventor Antonius C. Boersen

Antonius C. Boersen 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).

  • Spray drying apparatus; method for preparation of a spray-dried product having a desired bulk density
    Patent number: 5064501
    Abstract: Described is a device for obtaining a foam spray-dried product of predetermined bulk density. Thereto a nozzle for spraying a foaming gas comprising liquid is surrounded by a tube for supplying a gas which comprises dry particulate material to the jet of nozzle.Means are present to accurately control the ratio of solids in the liquid to be sprayed and the dry particulate material.The method described that the dry particulate material is made to collide with the jet from the nozzle and that the speed of the gas transporting said dry material is lower than 20 m/sec and preferably from 6 to 12 m/sec.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: November 12, 1991
    Assignee: Stork Friesland B.V.
    Inventor: Antonius C. Boersen