Patents by Inventor Kevin M. Jeanfreau

Kevin M. Jeanfreau 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).

  • Portable dynamic pre-pressurized sprayer for use with water or dilute aqueous solution
    Patent number: 6394365
    Abstract: A sprayer apparatus uses a larger canister to contain diluent (e.g. water) and a smaller canister to contain chemical concentrate (e.g. insecticide, fertilizer, soap, etc.). The larger canister has a bladder or diaphragm that separates its interior into two sections; a liquid chamber and a pressured gas chamber. A valved manifold enables diluent to be added to the apparatus via the manifold so that it mixes with the desired chemical concentrate. Mixed solution can then be dispensed via a hose, spray wand, etc. using the pressurized air to drive it out of the larger canister.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: May 28, 2002
    Inventor: Kevin M. Jeanfreau