Patents by Inventor Fred Lichtgarn

Fred Lichtgarn 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: 4254835
    Abstract: A spring powered rotary hand tool.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: March 10, 1981
    Inventor: Fred Lichtgarn
  • Patent number: 4235690
    Abstract: This invention directly converts some foreign trace gases that may be present in the air into an electrical current. Such gases include hydrogen sulphide, ammonia and chlorine. A rotating cylinder of glass, ceramic or plastic is coated on the outer surface with pure gold or pure platinum. This cylinder rotates, by external means, in a semi-enclosed chamber where the lower part of the cylinder extends out of the bottom of the chamber into a second chamber which contains an electrolyte which may be plain water. Thus, the cylinder as it rotates, is alternately exposed to gases in the first chamber and then to immersion in the water in the second chamber which contains an electrode. The cylinder itself is the other electrode. Any adsorbed trace gases on the cylinder wall will be immersed in water where the gases will become disassociated into ions. Some ions will remain on the cylinder wall and others will travel to the electrode in the water. If the cylinder is plated with gold the electrode must be gold also.
    Type: Grant
    Filed: May 11, 1979
    Date of Patent: November 25, 1980
    Inventor: Fred Lichtgarn
  • Patent number: 3948413
    Abstract: An attachment for a paint can for supporting a paint brush when not in use and for wiping excess paint from the paint brush. The attachment is formed of a main sheet material member which is folded upon itself to form a first leg and a second leg with both legs extending substantially in the same general direction. The first leg extends within the access opening of the paint can and has attached thereto an upturned member which protrudes back through the access opening and terminates exteriorly of the paint can. The second leg is in contact with the exterior surface of the paint can. Securing means are provided between the first leg and the second leg to securely position the attachment upon the paint can.
    Type: Grant
    Filed: July 5, 1974
    Date of Patent: April 6, 1976
    Inventors: John E. Gorrell, Fred Lichtgarn