Patents by Inventor Oskar L. Rolin

Oskar L. Rolin 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).

  • Device for scraping off liquid
    Patent number: 4566148
    Abstract: A scraper device intended for scraping off and/or evening-out a liquid, e.g. paint in a container, is buoyantly disposed in the liquid. The device has a scraping surface (12) which is grid-like and has side walls (36, 37) bearing against the walls of the container. The grid configuration can be formed by U-shaped strips (11) with the opening facing downwards in the liquid. The ends of the strips are connected to each other by the side walls which suitably are doubled so that the scraper device obtains a buoyancy adapted to the viscosity of the liquid.
    Type: Grant
    Filed: November 21, 1983
    Date of Patent: January 28, 1986
    Inventor: Oskar L. Rolin
  • Device for scraping liquid off rollers
    Patent number: D288492
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: February 24, 1987
    Inventor: Oskar L. Rolin