Patents by Inventor Steven L. Hanvey

Steven L. Hanvey 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).

  • Publication number: 20070169289
    Abstract: An improved vacuum head is defined by upper and lower sub-housings that are secured together to form the vacuum head assembly. A set of spherical balls are captured in appropriately sized ball-receiving pockets or sockets formed between the upper and lower sub-housings to support the vacuum head assembly a selected distance above the surface being swept. The ball-receiving sockets include a “stand-off” formation to minimize the probability of a ball-receiving socket becoming clogged with debris sufficient to the impair the ability of the ball to roll within its ball-receiving chamber. The use of balls as the rolling members allows omnidirectional control of the vacuum head while minimizing the propensity for disturbing the debris in the vicinity of the vacuum head and the formation of a undesired water-borne “cloud” of debris.
    Type: Application
    Filed: December 19, 2006
    Publication date: July 26, 2007
    Inventors: Steven L. Hanvey, Jack W. Eddy