Patents by Inventor Rudolph Haar

Rudolph Haar 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: 6052982
    Abstract: A durable rake specifically designed for grooming playing fields, such as baseball diamonds. The rake may be used to scarify, compact and smooth infield playing surfaces, such as base lines, pitcher's mounds and home plate areas. The rake includes a rigid, elongated grooming member having a flat bottom surface and opposed first and second longitudinal edges. At least the first longitudinal edge is bevelled. A plurality of T-shaped grooming tines are spaced along the length of the second longitudinal edge and project outwardly therefrom. The tines located at end portions of the grooming member project for a shorter distance than the remaining tines to prevent snagging. An elongated handle is securable to a top surface of the grooming member.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: April 25, 2000
    Inventor: Rudolph Haar