Patents by Inventor Ray Charles Emmons

Ray Charles Emmons 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).

  • Method of making constant flow irrigation tape
    Patent number: 5785785
    Abstract: A constant-flow drip irrigation tape hose includes a primary flow path communicating water along the length of the hose. A secondary drip-flow path leads from the primary flow path to an emitter site outwardly of the hose. The hose is formed with a pair of variably spaced apart walls at least one of which is formed with a continuously-open channel defining part of the secondary flow path. A second variable-area part of the secondary flow path is defined by radial spacing of the pair of walls from one another. At least one of the pair of walls is responsive to internal water pressure in the primary flow path to open and close the variable-area part of the secondary flow path in response, respectively, to decreasing and increasing water pressure in the hose. A plurality of emitter sites are spaced regularly along a length of the hose.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: July 28, 1998
    Assignee: Drip Tape Manufacturers & Engineers, Inc.
    Inventors: William Delmer, Daniel Delmer, Robert Delmer, John W. Erickson, Ray Charles Emmons
  • Constant-flow irrigation tape and method of making
    Patent number: 5695127
    Abstract: A constant-flow drip irrigation tape hose includes a primary flow path communicating water along the length of the hose. A secondary drip-flow path leads from the primary flow path to an emitter site outwardly of the hose. The hose is formed with a pair of variably spaced apart walls at least one of which is formed with a continuously-open channel defining part of the secondary flow path. A second variable-area part of the secondary flow path is defined by radial spacing of the pair of walls from one another. At least one of the pair of walls is responsive to internal water pressure in the primary flow path to open and close the variable-area part of the secondary flow path in response, respectively, to decreasing and increasing water pressure in the hose. A plurality of emitter sites are spaced regularly along a length of the hose.
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: December 9, 1997
    Assignee: Drip Tape Manufacturers & Engineers, Inc.
    Inventors: William A. Delmer, Daniel W. C. Delmer, Robert J. Delmer, John W. Erickson, Ray Charles Emmons