Patents Assigned to L. R. Nelson Corporation
  • Patent number: 6050286
    Abstract: The present device relates to an apparatus and method for automatically sequencing the flow of fluid between one fluid source and at least two fluid chambers in response to an interruption of fluid flow or pressure. Particularly, the device relates to irrigation. In its preferred embodiment, the apparatus is a sequencing valve that includes a two-sided flapper valve that is controlled by a spring and piston mechanism in order to direct fluid flow between chambers. In an alternate embodiment, the device includes a mechanism that also allows manual sequencing of fluid flow.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: April 18, 2000
    Assignee: L.R. Nelson Corporation
    Inventors: Thomas R. Kruer, Kenneth J Bruninga, Gary Redhead
  • Patent number: 6036117
    Abstract: A hose nozzle allowing one hand control for water stream pattern and flow rate is disclosed. The hose nozzle has a tubular body having a connector end for mating with the connector end of a hose. A hand grip having a plurality of finger notches is located around the tubular body. The hand grip allows the nozzle to be held between a user's fingers and palm. An outer sleeve member and an annular beveled collar are located in sufficient proximity to the hand grip to allow manual actuation by a user's index finger and thumb. The outer sleeve member and the annular collar may be extended or retracted by rotation. The outer sleeve member has a closed end wall with an aperture. An inner stem is located within the outer sleeve and is in fluid communication with the tubular body. The inner stem has an orifice which allows water to flow out of the inner stem and through the aperture when the outer cylinder is extended.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: March 14, 2000
    Assignee: L.R. Nelson Corporation
    Inventors: Lawrence P. Heren, Thomas R. Keuer
  • Patent number: 5938122
    Abstract: System and process for producing different embodiments of sprinkler assemblies uses two different first housing assemblies, from which one first housing assembly is selected for producing a desired sprinkler assembly embodiment. Each first housing assembly is replaceable with the other and includes an inlet end and a spaced outlet end; the inlet end of each first housing assembly is configured for connection with a source of water under pressure. Each first housing assembly also includes an adjustable flow control mechanism to control the flow of water under pressure through the first housing assembly. The control mechanism may include a manually-actuated moveable valve structure to control water flow rate, or a timing mechanism to select a duration for the water flow. By providing a first housing assembly with a control mechanism that is different from that of the other first housing assembly, the sprinkler assembly embodiment produced will depend upon the first housing assembly that is selected.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: August 17, 1999
    Assignee: L.R. Nelson Corporation
    Inventors: Lawrence P. Heren, Jerry R. Hayes, Thomas R. Kruer
  • Patent number: D435782
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: January 2, 2001
    Assignee: L. R. Nelson Corporation
    Inventor: Joyce Thomas
  • Patent number: D436019
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: January 9, 2001
    Assignee: L. R. Nelson Corporation
    Inventor: Joyce Thomas
  • Patent number: D436020
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: January 9, 2001
    Assignee: L. R. Nelson Corporation
    Inventor: Joyce Thomas
  • Patent number: D441831
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: May 8, 2001
    Assignee: L. R. Nelson Corporation
    Inventors: Lawrence P. Heren, David L. Hunt, Joyce Thomas
  • Patent number: D442472
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: May 22, 2001
    Assignee: L. R. Nelson Corporation
    Inventor: Joyce Thomas
  • Patent number: D442849
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: May 29, 2001
    Assignee: L. R. Nelson Corporation
    Inventor: Joyce Thomas
  • Patent number: D443022
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: May 29, 2001
    Assignee: L. R. Nelson Corporation
    Inventors: Lawrence P. Heren, Scott Jacobs
  • Patent number: D443153
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: June 5, 2001
    Assignee: L. R. Nelson Corporation
    Inventor: Joyce Thomas
  • Patent number: D391627
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: March 3, 1998
    Assignee: L.R. Nelson Corporation
    Inventor: John W. Goodin
  • Patent number: D399919
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: October 20, 1998
    Assignee: L. R. Nelson Corporation
    Inventor: John W. Goodin
  • Patent number: D404798
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: January 26, 1999
    Assignee: L.R. Nelson Corporation
    Inventor: John W. Goodin
  • Patent number: D407140
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: March 23, 1999
    Assignee: L.R. Nelson Corporation
    Inventor: Lawrence P. Heren
  • Patent number: D409717
    Type: Grant
    Filed: April 27, 1998
    Date of Patent: May 11, 1999
    Assignee: L. R. Nelson Corporation
    Inventors: Lawrence P. Heren, Thomas R. Kruer, David L. Hunt
  • Patent number: D418576
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: January 4, 2000
    Assignee: L. R. Nelson Corporation
    Inventors: Lawrence P. Heren, David Hunt
  • Patent number: D427660
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: July 4, 2000
    Assignee: L.R. Nelson Corporation
    Inventors: Timothy R. Casica, William Gassman, David L. Hunt
  • Patent number: D431069
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: September 19, 2000
    Assignee: L. R. Nelson Corporation
    Inventor: Lawrence P. Heren
  • Patent number: D432629
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: October 24, 2000
    Assignee: L. R. Nelson Corporation
    Inventor: Scott Jacobs