Patents Assigned to Robert J. Delmer
  • Patent number: 5252162
    Abstract: A multiple chamber hose for drip irrigation and the like, with a primary chamber for fluid flow therethrough and a multiple layer section having a primary layer, a mid layer and a secondary layer, and with a secondary chamber in said mid layer for fluid flow therethrough. The primary layer is positioned between the primary chamber and the mid layer, and the secondary layer is positioned between the mid layer and the exterior. The hose includes an inlet opening for fluid flow from the primary chamber to the secondary chamber and an outlet opening for fluid flow from the secondary chamber to the exterior. The invention also includes methods of making such a hose.
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: October 12, 1993
    Assignees: William A. Delmer, Robert J. Delmer, Daniel W. C. Delmer
    Inventor: Daniel W. C. Delmer
  • Patent number: 5118042
    Abstract: A multiple chamber hose for drip irrigation and the like, with a primary chamber for fluid flow therethrough and a multiple layer section having a primary layer, a mid layer and a secondary layer, and with a secondary chamber in the mid layer for fluid flow therethrough. The primary layer is positioned between the primary chamber and the mid layer, and the secondary layer is positioned between the mid layer and the exterior. The hose includes an inlet opening for fluid flow from the primary chamber to the secondary chamber and an outlet opening for fluid flow from the secondary chamber to the exterior.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: June 2, 1992
    Assignees: William A. Delmer, Robert J. Delmer, Daniel W. C. Delmer
    Inventor: Daniel W. C. Delmer