Patents by Inventor Randall Thompson, Jr.

Randall Thompson, Jr. 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: 20210148326
    Abstract: A tide-activated power system for deriving energy from the periodic rise and fall of the level of a body of water includes a float/weight barge for rising and falling with the level of the body of water. A hydraulic cylinder has a piston that defines a pair of variable size chambers and for forcing the working fluid as the barge rises or falls. The cylinder has an intake port and an output port associated with each of the variable size chambers. A valve associated with the output port is adapted for limiting the flow of the working fluid and, thus the movement of the piston. A flow control system directs working fluid forced from the variable size chamber that is decreasing in size as the barge rises or falls towards an energy conversion mechanism and directing working fluid from the energy conversion mechanism to the other variable size chamber.
    Type: Application
    Filed: November 15, 2020
    Publication date: May 20, 2021
    Inventor: Randall Thompson, JR.
  • Patent number: 8132406
    Abstract: A tide activated power system has a plurality of horizontally oriented cylinders that each have a pair of chambers. The cylinders are carried on float/weight barges that are located in a lagoon. A plurality of float/weight barges each have at least two cylinders in series. Each cylinder has a chamber holding a piston movable in the chamber defining a pair of variable size chambers: a flood variable size chamber and an ebb variable size chamber. As the float/weight barge rises and falls on the tide in the lagoon, the variable size chambers vary in size and force a working fluid to a turbine generator to create electrical energy. The piston of each of the multiple cylinders of the multiple barges forces combined to move the working fluid above the turbine generator where the flow drives the turbine generator prior to returning to the cylinder. In alternative embodiments, other mechanisms convert the energy from the rising and falling of the flow/weight barges to a non-uniform motion in one direction.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: March 13, 2012
    Inventor: Randall Thompson, Jr.
  • Publication number: 20100219639
    Abstract: A tide activated power system has a plurality of horizontally oriented cylinders that each have a pair of chambers. The cylinders are carried on float/weight barges that are located in a lagoon. A plurality of float/weight barges each have at least two cylinders in series. Each cylinder has a chamber holding a piston movable in the chamber defining a pair of variable size chambers: a flood variable size chamber and an ebb variable size chamber. As the float/weight barge rises and falls on the tide in the lagoon, the variable size chambers vary in size and force a working fluid to a turbine generator to create electrical energy. The piston of each of the multiple cylinders of the multiple barges forces combined to move the working fluid above the turbine generator where the flow drives the turbine generator prior to returning to the cylinder. In alternative embodiments, other mechanisms convert the energy from the rising and falling of the flow/weight barges to a non-uniform motion in one direction.
    Type: Application
    Filed: March 2, 2009
    Publication date: September 2, 2010
    Inventor: Randall Thompson, JR.
  • Patent number: 4622812
    Abstract: An apparatus for deriving energy from the rise and fall of a body of fluid consisting of a float adapted to move substantially in a vertical plane in response to the rise and fall of the body of liquid. A cylinder having a piston therewithin adapted for vertical movement relative to the cylinder in response to rise and fall of the float with the body of water, in a manner to apply force to fluid in a chamber of the cylinder, the force being applied alternately to opposed chambers of the cylinder, means for converting force applied to the fluid to energy, and means responsive to energy demand for storing energy converted from force applied to the fluid and for converting stored energy to force applied to the fluid.
    Type: Grant
    Filed: April 23, 1985
    Date of Patent: November 18, 1986
    Inventors: Randall Thompson, Jr., Ernesto Blanco
  • Patent number: 4612768
    Abstract: Apparatus for mechanical storage of energy derived from the rotation of a first shaft and for driving a rotatable main shaft associated with a power generator comprising, in combination, means for rotating the first shaft, connecting means for communicating the rotation of the first shaft to a first sprocketed sheave, and gear train means connecting the rotatable main shaft to a second sprocketed sheave and adapted to cause a rate of rotation of the rotatable main shaft greater than the rate of rotation of the second sprocketed sheave, the first and second sprocketed sheaves being in communication with one another by means of continuous, flexible connecting means disposed on the first and second sprocketed sheaves in non-sliding relationship therewith, the continuous, flexible connecting means having disposed thereon a weight which is raised by the rotation of the first sprocketed sheave, the second sprocketed sheave being capable of being rotated by the descent of the weight to cause rotation of the rotatabl
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: September 23, 1986
    Inventor: Randall Thompson, Jr.
  • Patent number: 4610140
    Abstract: Apparatus for mechanical storage of energy derived from the rotation of a first shaft and for driving a rotatable main shaft associated with a power generator comprising, in combination, means for rotating the first shaft, connecting means for communicating the rotation of the first shaft to a first sprocketed sheave, and gear train means connecting the rotatable main shaft to a second sprocketed sheave and adapted to cause a rate of rotation of the rotatable main shaft greater than the rate of rotation of the second sprocketed sheave, the first and second sprocketed sheaves being in communication with one another by means of continuous, flexible connecting means disposed on the first and second sprocketed sheaves in non-sliding relationship therewith, the continuous, flexible connecting means having disposed thereon a weight which is raised by the rotation of the first sprocketed sheave, the second sprocketed sheave being capable of being rotated by the descent of the weight to cause rotation of the rotatabl
    Type: Grant
    Filed: May 15, 1984
    Date of Patent: September 9, 1986
    Inventor: Randall Thompson, Jr.
  • Patent number: 4541242
    Abstract: Apparatus for deriving energy from the rise and fall of a body of liquid to drive a rotatable main shaft associated with a power generator comprising, in combination, float means adapted to move substantially in a vertical plane in response to the rise and fall of the body of liquid, means associated with the float means for converting the vertical movement into reciprocating rotational movement of a first shaft, a ratcheted differential adapted to convert the reciprocating rotational movement of the first shaft into rotational movement of a second shaft in a single direction, the ratcheted differential being associated with first gear train means for increasing the rate of rotational movement of the first or second shaft, connecting means for communicating the rotational movement of the second shaft to a first sprocketed sheave, and second gear train means connecting the rotatable main shaft to a second sprocketed sheave and adapted to cause a rate of rotation of the rotatable main shaft greater than the rat
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: September 17, 1985
    Inventor: Randall Thompson, Jr.