Patents by Inventor Robert G. Korfmann

Robert G. Korfmann 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: 4365382
    Abstract: A chimney cleaning system which can be operated from the ground and which does not require the user to climb a ladder to the top of the chimney includes a cleaning head constructed of a number of sections of iron or like material connected together by support members of length appropriate to the particular interior dimensions of the chimney to be cleaned and suspended by a chain or cable from a tubular support member which is adapted to align the cleaning head within the chimney or flue and to provide a guide for the cable to the ground for ready access by the user without the need for pulleys. An anti-down draft cap may be mounted at the end of the tubular support member immediately above the chimney opening to enhance the operation of the chimney system. The anti-down draft cap mounts to a support means on the end of the tubular support member. The tubular support member is mounted to the outside of the chimney by stainless steel bands or the like.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: December 28, 1982
    Inventors: Robert G. Korfmann, Richard C. Bennett