Patents by Inventor Helmut Grassinger

Helmut Grassinger 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: 7018437
    Abstract: A separator for a wet vacuum cleaner has a bottom and a sidewall connected to the bottom. The sidewall has lamellas delimiting slots, wherein through the slots an air/gas flow enters an interior of the separator, delimited by the bottom and the sidewall, wherein the air/gas flow contains dirt/dust particles and/or water droplets. The lamellas each have at least one radial outer widened section, extending in a rotational direction of the separator, and at least one remaining lamella section, wherein the at least one radial outer widened section and the at least one remaining lamella section delimit together a turbulence chamber, respectively.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: March 28, 2006
    Assignee: PROAIR GmbH Gerätebau
    Inventors: Paul Roth, Anton Kreis, Helmut Grassinger
  • Patent number: 6899747
    Abstract: A separator for a wet vacuum device has a bottom and a sidewall connected to the bottom. The sidewall has stays defining slots between the stays. An air/gas stream, containing particles to be separated from the air/gas stream, enters the separator through the slots near the bottom, and the particles are separated from the air/gas stream by centrifugal force and are expelled from the separator at a spacing from the bottom through the slots. Between 3 and 45 slots are distributed about the circumference of the sidewall. The slots have a slot depth and a slot width, wherein the slot depth is substantially 0.2 up to 2.5 times as large as the slot width. The rotating separator is arranged above the liquid bath such that it agitates the surface of the liquid bath.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: May 31, 2005
    Assignee: Proair GmbH Gerätebau
    Inventors: Paul Roth, Helmut Grassinger, Anton Kreis
  • Publication number: 20040098958
    Abstract: A separator for a wet vacuum cleaner has a bottom and a sidewall connected to the bottom. The sidewall has lamellas delimiting slots, wherein through the slots an air/gas flow enters an interior of the separator, delimited by the bottom and the sidewall, wherein the air/gas flow contains dirt/dust particles and/or water droplets. The lamellas each have at least one radial outer widened section, extending in a rotational direction of the separator, and at least one remaining lamella section, wherein the at least one radial outer widened section and the at least one remaining lamella section delimit together a turbulence chamber, respectively.
    Type: Application
    Filed: November 19, 2003
    Publication date: May 27, 2004
    Applicant: PROAIR GmbH Geratebau
    Inventors: Paul Roth, Anton Kreis, Helmut Grassinger
  • Publication number: 20030159580
    Abstract: A separator for a wet vacuum device has a bottom and a sidewall connected to the bottom. The sidewall has stays defining slots between the stays. An air/gas stream, containing particles to be separated from the air/gas stream, enters the separator through the slots near the bottom, and the particles are separated from the air/gas stream by centrifugal force and are expelled from the separator at a spacing from the bottom through the slots. Between 3 and 45 slots are distributed about the circumference of the sidewall. The slots have a slot depth and a slot width, wherein the slot depth is substantially 0.2 up to 2.5 times as large as the slot width. The rotating separator is arranged above the liquid bath such that it agitates the surface of the liquid bath.
    Type: Application
    Filed: February 27, 2003
    Publication date: August 28, 2003
    Applicant: PROAIR GMBH GERATEBAU
    Inventors: Paul Roth, Helmut Grassinger, Anton Kreis