Patents by Inventor Horst Neugart

Horst Neugart 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).

  • Safety filter for a vacuum cleaner
    Patent number: 4749386
    Abstract: The invention is directed to a safety filter for an outlying filter cartridge of a hand-guided vacuum cleaner. The filter cartridge includes a rigid air-permeable jacket and accommodates a paper filter bag which is seated in the jacket. The safety filter is a bag corresponding to the form of the jacket and is made of electrostatically-charged non-woven fabric. The safety filter is mounted between the jacket and the paper filter bag.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: June 7, 1988
    Assignee: Vorwerk & Co. Interholding GmbH
    Inventors: Rolf Strohmeyer, Horst Neugart
  • Dust collector for vacuum cleaner
    Patent number: 4406678
    Abstract: A dust collector for a vacuum cleaner having a blower has an outer wall with an air-impermeable main portion bounding an inner chamber and a limited air-permeable portion, a filter accommodated in the chamber and connectable with the blower, and an additional filtering member associated with the air-permeable portion of the outer wall. The additional filtering member may be composed of an electrostatically chargeable filtering material and may be formed as a separate member or as a part of the wall of the dust collector.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: September 27, 1983
    Assignee: Vorwerk & Co Interholding GmbH
    Inventor: Horst Neugart
  • Filter for cooling air stream of electric commutator motor for household device
    Patent number: 4399378
    Abstract: A filter for a cooling air stream of an electric commutator motor for a household device has a passage into which a cooling air stream flows after passing an electric commutator motor, and a filtering member composed of an electrostatically charged material which coats the passage partially or completely.
    Type: Grant
    Filed: February 24, 1982
    Date of Patent: August 16, 1983
    Assignee: Vorwerk & Co. Interholding GmbH
    Inventors: Heinz-Gerhard Krumm, Horst Neugart