Patents by Inventor Leonard Johnston

Leonard Johnston 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: 10111388
    Abstract: A square or rectangular hay baler (10) comprises a fore and aft hay bale forming zone, and a cut vegetation pick up and delivery arrangement for delivering cut vegetation to the hay bale forming zone. A compression plunger (19) of the hay baler (10) is movable in the fore and aft direction for compressing cut vegetation into a bale in the hay bale forming zone. A reservoir (23) retains a supply of non-toxic liquid surfactant or lubricant, and a pump (25) is provided for pumping the nontoxic liquid surfactant or lubricant from the reservoir (23) at a supply pressure to one or more discharge outlets (32) in the hay baler (10). Thereby, inwardly facing surfaces in the fore and aft hay bale forming zone are at least partially coated with the non-toxic liquid surfactant or lubricant.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: October 30, 2018
    Assignee: Elmo Park Pty. Ltd.
    Inventor: Richard Leonard Johnston
  • Publication number: 20170311549
    Abstract: A hay baler (10) comprises a fore and aft hay bale forming zone, and a cut vegetation pick up and delivery arrangement for delivering cut vegetation to the hay bale forming zone. A compression plunger (19) of the hay baler (10) is movable in the fore and aft direction for compressing cut vegetation into a bale in the hay bale forming zone. A reservoir (23) retains a supply of non-toxic liquid surfactant or lubricant, and a pump means (25) is provided for pumping the non-toxic liquid surfactant or lubricant from the reservoir (23) at a supply pressure to one or more discharge outlets (32) in the hay baler (10). Thereby, inwardly facing surfaces in the fore and aft hay bale forming zone are at least partially coated with the non-toxic liquid surfactant or lubricant.
    Type: Application
    Filed: September 18, 2015
    Publication date: November 2, 2017
    Inventor: Richard Leonard Johnston
  • Publication number: 20080035049
    Abstract: A boating safety apparatus comprises a support body, a flag attachment member and a flag. The support body includes an attachment device configured for attaching the support body to another body. The flag attachment member is movably mounted at a first end thereof to the support body. The flag attachment member is movable between a displayed position and a stowed position. The flag is attached to the flag attachment member adjacent the second end of the flag attachment member. The flag is configured for designating an active water sport activity.
    Type: Application
    Filed: April 13, 2005
    Publication date: February 14, 2008
    Inventors: Kyle Johnston, Leonard Johnston
  • Patent number: D393087
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: March 31, 1998
    Inventors: Linda Johnston, Robert Whitley, Leonard Johnston