Patents by Inventor Alan J Drobot

Alan J Drobot 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: 6237975
    Abstract: According to the present invention there is provided a shovel comprising an elongate body, a handle at an end of the body, a digging end at a respective end of the body which is arranged to move material and a bent portion on the body adjacent the digging end. The bent portion is formed such that an engaging end is arranged to engage a ground surface creating a fulcrum affect when the handle is forced downwards by a user thereby tilting the digging end off the ground surface. The bent portion is generally U-shaped having a first bend at the digging end which extends downwards therefrom, a second bend which extends upwards and a third bend which extends rearwards generally longitudinally with the digging end. The second bend has a larger radius than the first and third bends defining a rounded rolling surface such that a contact point of the fulcrum is varied longitudinally as the shovel is tilted. The shovel body is formed from a single elongate tube.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: May 29, 2001
    Inventor: Alan J Drobot
  • Patent number: 4823425
    Abstract: A brush for cleaning a chimney flue is formed from a central hub outwardly from which extends a plurality of plastics strips manufactured from strapping tape having a width of the order of 1/2 inch and a thickness of the order of 0.030 inch. The device is manufactured from a plurality of separate units each formed with six outwardly extending strips or blades and a central hub with all of the units stacked on a bolt and prevented from rotation each relative to the next. A natural curvature of the strips tends to form a device into a cone shape so they can be readily pressed into a chimney flue from the lower end with the flexibility of the strapping tape enabling the unit to be compressed and passed around obstructions such as the flue damper.
    Type: Grant
    Filed: October 1, 1987
    Date of Patent: April 25, 1989
    Inventor: Alan J. Drobot