Patents by Inventor Helen C. Aasen

Helen C. Aasen 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: 4279095
    Abstract: An attachment is provided for a vacuum cleaner hose and is equipped with a canister having a handle and a nozzle having a pointed suction head. Within the nozzle a vacuum plenum is bounded by a partition having an array of firm pliable fingers about its perimeter and a plurality of flexible annular tubes within the perimeter thereof and in communication with the plenum. An exhaust pipe extends rearwardly from the attachment and is connected to a household vacuum cleaner hose. The nozzle is worked across the coat of a house pet, such as a dog or cat, to rid the animal of fleas. Within the canister there is a disposable tubular bag which contains a chemical substance that kills fleas and flea eggs as they are dislodged and carried by suction from the animals coat.
    Type: Grant
    Filed: January 2, 1980
    Date of Patent: July 21, 1981
    Inventor: Helen C. Aasen