Patents by Inventor Robert S. Magdelain

Robert S. Magdelain 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).

  • Cleaner apparatus for toxic or hazardous substances
    Patent number: 4689059
    Abstract: The present invention relates to an apparatus for cleaning hazardous or toxic solid and liquid substances. The apparatus generally comprises a vacuum cleaner having a housing and an arrangement for drawing a fluid flow from an inlet to an outlet of the housing. A first filter is provided for separating and retaining both macro- and micro-particles of the substance entrained with the fluid flow. The first filter is arranged on a downstream side of the inlet of the housing and has a reservoir portion arranged below the inlet. Walls of the first filter permit outflow of substantially only vapors of the substance entrained in the fluid flow. A second filter for retaining the vapors is arranged fluidically between the first filter and the outlet. In a particularly preferred embodiment, the first filter includes a microporous filter membrane which is laminated to a fibrous support to provide a self-supporting unitary first filter for accomplishing the separation of the macro- and micro-particles of the substance.
    Type: Grant
    Filed: September 3, 1986
    Date of Patent: August 25, 1987
    Assignee: A/S Fisker & Nielsen
    Inventor: Robert S. Magdelain
  • Cleaner apparatus for toxic or hazardous substances
    Patent number: 4650505
    Abstract: The present invention relates to an apparatus for cleaning hazardous or toxic solid and liquid substances. The apparatus generally comprises a vacuum cleaner having a housing and an arrangement for drawing a fluid flow from an inlet to an outlet of the housing. A first filter is provided for separating and retaining both macro- and micro-particles of the substance entrained with the fluid flow. The first filter is arranged on a downstream side of the inlet of the housing and has a reservoir portion arranged below the inlet. Walls of the first filter permit outflow of substantially only vapors of the substance entrained in the fluid flow. A second filter for retaining the vapors is arranged fluidically between the first filter and the outlet. In a particularly preferred embodiment, the first filter includes a microporous filter membrane which is laminated to a fibrous support to provide a self-supporting unitary first filter for accomplishing the separation of the macro- and micro-particles of the substance.
    Type: Grant
    Filed: October 17, 1983
    Date of Patent: March 17, 1987
    Assignee: A/S Fisker & Nielsen
    Inventor: Robert S. Magdelain