Patents Assigned to Ishajahu Blass
  • Drip level irrigation
    Patent number: RE29546
    Abstract: An irrigation dripper unit for use in irrigation in association with an irrigation supply pipe and also, when combined with a supply pipe, to form together with the supply pipe an integral unit. The dripper unit can be connected in series with the supply pipe or, when constituting a part of the integral unit, is connected in series with the supply pipe and has means to tap off a portion of the water flowing through the unit and to discharge such portion at a low drip rate.
    Type: Grant
    Filed: September 12, 1973
    Date of Patent: February 21, 1978
    Assignee: Ishajahu Blass
    Inventors: Symcha Blass, Ishajahu Blass