Patents by Inventor Patrick A. Kahle

Patrick A. Kahle 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: 6341425
    Abstract: The present invention 10 is an improved electric knife with several enhancements which make it uniquely suited for use in its intended watery environment. In case it is accidentally dropped in the water, it has several floatation chambers 54 in the handle 24 and the end cap 52 that will keep it afloat and nearly water and damage free for a reasonably long period, certainly time enough for any reasonably serious effort at retrieval to be effective. The end cap 52 is highly buoyant, having a sealed partial vacuum chamber 54. The housing has several sealed buoyant air chambers 54 in the. rearmost area to directly offset the weight of the battery pack 36. The motor housing unit also provides buoyancy and floatation by the presence of the water-resistant seal 63 at the juncture of the knife blades 42 and the handle housing 24. The critical areas around switches 44, 50 and access openings are also watertight for operating in wet or rainy conditions.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: January 29, 2002
    Inventor: Patrick A. Kahle