With Side Walls Or Guides Patents (Class 171/74)
  • Patent number: 5160034
    Abstract: The present vibrating bucket screen attachment for cleaning beaches and for being mounted on mobile machines such as skid-steer loaders includes an outer excavating bucket with a sand-scooping blade and runners on the outer bucket for supporting the outer bucket relative to the beach. An inner vibrating screen bucket is resiliently mounted in the excavating bucket and includes a hydraulically operated vibrator. Resilient bumper pad mounts disposed between the inner and outer buckets suppress the vibrations of the inner vibrating bucket relative the outer excavating bucket. A floor screen portion of the inner bucket is mounted above bottom, sand-engaging portions of the outer bucket such that the screen portion is spaced from the surface of the beach to vibrate freely during the separation of sand from litter.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: November 3, 1992
    Inventor: Robert J. Potter
  • Patent number: 4796711
    Abstract: An apparatus used in agriculture and more specifically to an apparatus for removing the plastic film cover from raised plant beds in which the edges thereof are tucked under soil placed in overlying relation to the downwardly inclined side edges of the plastic film thereby enabling separation of the plastic film from the plant bed after the plants have matured and the crop harvested from the plants so that the plastic film can be removed and appropriate cultivation and reshaping of the plant beds may be more effectively accomplished with the apparatus of the present invention materially reducing the time and labor required in removing the plastic film for disposal or recycling.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: January 10, 1989
    Assignee: Row Runner Corp. of America
    Inventor: Ralph W. Chrysler