Patents by Inventor Alan Griffin

Alan Griffin 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).

  • Pool Skimmer Protector
    Publication number: 20140231324
    Abstract: A pool skimmer protector comprising a frame positioned in front of a pool skimmer, where the frame includes a top edge and a bottom edge; a screen attached to the top edge, where the screen rests flush against the frame; and a handle attached to a bottom edge of the screen, where the handle lifts the screen away from the pool skimmer to remove any debris collected on the screen.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 21, 2014
    Inventor: Alan Griffin
  • Method and apparatus for adjusting agricultural cultivator tynes
    Patent number: 4585211
    Abstract: An agricultural tyne assembly is disclosed which uses a series of linkages to transfer loading from the tyne as deflection of the tyne occurs upon striking an obstacle during tilling. There is also disclosed means to adjust the spring loading on an agricultural tyne.
    Type: Grant
    Filed: January 11, 1985
    Date of Patent: April 29, 1986
    Assignee: Collison & Co.
    Inventor: Alan Griffin
  • Agricultural cultivator and tines therefor
    Patent number: 4502548
    Abstract: An agricultural tine assembly is disclosed which uses a series of linkages to transfer loading from the tine as deflection of the tine occurs upon striking an obstacle during tilling. There is also disclosed means to adjust the spring loading on an agricultural tine.
    Type: Grant
    Filed: July 13, 1982
    Date of Patent: March 5, 1985
    Assignee: Horwood Bagshaw Limited
    Inventor: Alan Griffin