Patents by Inventor Steven K. Eisenberg

Steven K. Eisenberg 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: 4379375
    Abstract: An improved hydroponic growing system comprises, in combination, an elongated preferably rectangular hollow trough having substantially closed sidewalls and bottom and an open top defining a central space. The trough defines a pair of spaced tracks extending the length thereof in the space and an elongated flexible strip is slideably disposed in the tracks. The strip contains a plurality of spaced apertures extending vertically therethrough along the length thereof and in each aperture is disposed a plant growing cup having a hollow body defining a central space, an open top, a porous bottom and substantially closed or perforated sidewalls. The sidewalls bear outwardly extending peripheral supports so that the body of the cup extends down into the trough space and the cup is releasably held in position by the support bearing on the upper face of the strip.
    Type: Grant
    Filed: March 19, 1981
    Date of Patent: April 12, 1983
    Assignee: Whittaker Corporation
    Inventors: Steven K. Eisenberg, Mark W. Hancock
  • Patent number: 4327538
    Abstract: Am improved harvester is provided for hydroponically grown produce borne in spaced cups extending down through a flexible elongated strip along the length thereof. The harvester comprises a frame having at least one and preferably a number of guideways each having a pair of elongated spaced parallel rails secured in the frame and adapted to guide the flexible strip bearing the produce-containing cups. A strip guide roll and separation means are also secured to the frame for separating the produce-bearing portions of the growing cups from the flexible strip during its passage through the frame. A strip take-up reel and means for powering the same are in or adjacent to the frame. In one embodiment, the guide roll is adapted to fully eject the cups from the strip and slide means are provided for passage of said cups to a recovery area. In another embodiment, the guide roll raises the cups while the cups are still retained in the strip and blade means sever the raised portions of the cups.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: May 4, 1982
    Assignee: Whittaker Corporation
    Inventors: Robert Milhem, Steven K. Eisenberg, Mark W. Hancock