Patents by Inventor Per N.C. Trumstedt

Per N.C. Trumstedt 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: 5255829
    Abstract: A dispenser for discharging finely-divided or liquid material from a tight or substantially tight package (3) includes an apparatus (1) rotatably disposed in relation to the package (3) by means of a knob (10, 10') and provided with dosage compartments (2a, 2b, 2c, etc.) disposed therein. The dosage compartments are, on rotation of the apparatus (1) by means of the know (10, 10'), arranged to be filled by the material and to be emptied of the material by force of gravity. The apparatus (1) is disposed in an opening (4) in the package (3) so as to block the opening (4). The knob (10, 10') is arranged to be manipulated to rotate the apparatus (1) form an inoperative position to an operative position.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: October 26, 1993
    Inventors: Per T. Trumstedt, Per N.C. Trumstedt