Patents by Inventor Robert Baumann

Robert Baumann 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).

  • Foam stabilizing additive and polyurethane foam prepared in the presence thereof
    Patent number: 5310766
    Abstract: This invention relates to a polyurethane foam stabilizing additive that comprises from about 10 to about 50 weight percent a hydrocarbon oil, and in from about 90 to about 50 weight percent a polyester polyol which is a solid at room temperature. Use of the additive in a polyurethane foaming process provides for improved dimensional stability of the resulting foam. The additive is especially of value when preparing water blown polyether polyol-based polyurethane foam useful, for example, in sealant applications.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: May 10, 1994
    Assignee: The Dow Chemical Company
    Inventors: Robert Baumann, Rajinder Sood
  • Dual stage flush lifter
    Patent number: 4750220
    Abstract: A toilet flush tank mechanism having a lifting rod for raising a ball actuated by a pair of handles attached to the lifting rod on the exterior of the water tank. One of the handles is fixedly secured to the lifting rod to conjointly move therewith and the other of the handles is secured to the lifting rod so as to be initially rotatable freely about the lifting rod over a predetermined arc and thereafter causes the conjoint movement of the lifting rod with it.
    Type: Grant
    Filed: May 21, 1986
    Date of Patent: June 14, 1988
    Inventor: Robert Baumann