Patents by Inventor Martin Perry Heard

Martin Perry Heard 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).

  • Publication number: 20210244010
    Abstract: The present invention relates to a novel apparatus for delivering herbicide and/or fertilizer to row crops.
    Type: Application
    Filed: June 23, 2020
    Publication date: August 12, 2021
    Inventor: Martin Perry Heard
  • Publication number: 20190106279
    Abstract: The present invention relates to an utility trailer with removable self-dumping dumpster and trailer assembly particularly suitable for hauling refuse and yard waste.
    Type: Application
    Filed: October 8, 2018
    Publication date: April 11, 2019
    Inventor: Martin Perry HEARD
  • Publication number: 20170174430
    Abstract: The present invention relates to a self-dumping dumpster and trailer assembly particularly suitable for hauling refuse and yard waste.
    Type: Application
    Filed: December 19, 2016
    Publication date: June 22, 2017
    Inventor: Martin Perry HEARD
  • Patent number: 7412843
    Abstract: The present invention involves a system and method for superheating the refrigerant gas in a motor vehicle air conditioning system in order to minimize the amount of work required to be performed by the compressor. In an embodiment of the present invention, the refrigerant gas is diverted through the exhaust manifold immediately after passing through the compressor. As the refrigerant gas passes through the exhaust manifold, it is superheated by the surrounding hot exhaust gases thereby increasing the refrigerant gas pressure to reduce the amount of work done by the compressor.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: August 19, 2008
    Inventor: Martin Perry Heard
  • Patent number: 6381934
    Abstract: An agricultural implement attached to a farm tractor by a three point hitch is used to cut the top of mature cotton stalks, or shred harvested crops or mow turn rows. Knives are mounted on the bottom of vertical shafts which are rotated by belt driven pulleys. The pulleys are driven from a right angle gear box which is driven from the power take off of the tractor. The knives are staggered along either side of a beam traverse to the direction of travel, so that the knives cannot strike other knives as they mow over-lapping swaths.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: May 7, 2002
    Inventor: Martin Perry Heard
  • Publication number: 20020000081
    Abstract: An agricultural implement attached to a farm tractor by a three point hitch is used to cut the top of mature cotton stalks, or shred harvested crops or mow turn rows. Knives are mounted on the bottom of vertical shafts which are rotated by belt driven pulleys. The pulleys are driven from a right angle gear box which is driven from the power take off of the tractor. The knives are staggered along either side of a beam traverse to the direction of travel, so that the knives cannot strike other knives as they mow over-lapping swaths.
    Type: Application
    Filed: February 22, 2001
    Publication date: January 3, 2002
    Inventor: Martin Perry Heard