Patents by Inventor Karl Filip Wennerstrom

Karl Filip Wennerstrom 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).

  • Muffler for intermittent blasts of air from pneumatic tools, valves and the like
    Patent number: 4033428
    Abstract: A muffler for pneumatic tools in which the lubricating oil from mist lubrication and the like is separated from the used air by means of the air first being led through a porous filler and thereafter allowed to pass through a labyrinth path so as to alter the direction of flow and so as to expand. The oil is separated by means of the air striking against guide means, said oil being allowed to trickle down to the bottom of the muffler where it is drained through a tap or faucet. The air is then led through porous filters so as to remove the last traces of oil so as to be able to be discharged freely into the atmosphere.
    Type: Grant
    Filed: December 9, 1975
    Date of Patent: July 5, 1977
    Assignee: Ab Fi-Wes Maskinservice
    Inventor: Karl Filip Wennerstrom