Patents by Inventor Leonard B. Vandenberg

Leonard B. Vandenberg 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: 6302100
    Abstract: A method is disclosed for collimating light energy falling randomly from myriad directions on a fixed-positioned thin flat surface. The collimated rays are then concentrated by an assembly of prismatic slabs and optical or fiber optic means to achieve light concentrations of 700 or more times than that of normal sunlight. Applications are given for new products such as collimated beam non-blinding motor vehicle headlights; fixed-positioned solar collectors that collect and concentrate more than 80% of the direct and diffused radiation falling on their surfaces; generation of high pressure steam by means of solar energy; and efficient and economical photovoltaic and thermoelectric generators and fiber optic acceptors for concentrating and transmitting significant quantities of light energy.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: October 16, 2001
    Inventor: Leonard B. Vandenberg
  • Patent number: 5228310
    Abstract: A heat transfer system combining a solar collector and a vapor jet compressor pump. The solar collector provides two streams of heated vapor, one at a relatively high temperature and one at a relatively low temperature. The high temperature vapor provides the motive vapor for the vapor jet compressor pump. The vapor jet compressor pump entrains the lower temperature vapor and acts as a heat pump effectively pumping its temperature to a higher temperature useful for space heating. The solar energy supply may be supplemented by an auxiliary convention energy source and the vapor jet compressor pump may be supplemented by a self-energized circulation pump.
    Type: Grant
    Filed: September 1, 1992
    Date of Patent: July 20, 1993
    Inventor: Leonard B. Vandenberg
  • Patent number: 5142882
    Abstract: A heat transfer system combining a solar collector and a vapor jet compressor pump. The solar collector provides two streams of heated vapor, one at a relatively high temperature and one at a relatively low temperature. The high temperature vapor provides the motive vapor for the vapor jet compressor pump. The vapor jet compressor pump entrains the lower temperature vapor and acts as a heat pump effectively pumping its temperature to a higher temperature useful for space heating. The solar energy supply may be supplemented by an auxiliary convention energy source and the vapor jet compressor pump may be supplemented by a self-energized circulation pump.
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: September 1, 1992
    Inventor: Leonard B. Vandenberg
  • Patent number: 4809523
    Abstract: A fluid system for controlling fluid temperatures and transferring heat from a thermal energy source such as a solar collector to point-of-need heat exchangers, remote from the collector from which heat is discharged for use. The fluid system blanket pressure, i.e., the pressure at the high point of the system, is maintained at a level such that the fluid vaporizes in the desired temperature operating range of the collector. The vapor collects in an accumulator that is connected in parallel in the heat transfer system with the collector. The accumulator serves to supply a regulated flow of vapor for motivating a vapor jet compressor-pump. The pump functions for the dual purposes of circulating the heat transfer fluid and as a vapor compressor for space cooling or the pumping of heat from the outside environment into the system to supplement the heat supplied by the collector.
    Type: Grant
    Filed: May 17, 1984
    Date of Patent: March 7, 1989
    Inventor: Leonard B. Vandenberg
  • Patent number: 4365616
    Abstract: A self-aligning solar energy collector which maintains its attitude facing the sun during the sun's daily and seasonal changes. Tension cables hold the collector in position, and are positioned so as to be out of equilibrium when off-axis solar radiation heat one cable more than another.Self-alignment is in both horizontal and vertical planes. Multiple collectors are also disclosed in a ganged or master-slave relationship.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: December 28, 1982
    Inventor: Leonard B. Vandenberg
  • Patent number: 4270522
    Abstract: A fluid system for controlling fluid temperatures and transferring heat from a solar energy collector to a point-of-need heat exchanger, remote from the collector, from which heat is discharged for use. Heat is collected by the fluid in the solar collector, which fluid flows by natural circulation into an accumulator, connected in a continuous heat accumulation loop with the collector. A self-energized forced-convection heat transfer loop leads from the accumulator to the lower discharge heat exchanger and back to the solar collector.The fluid system blanket pressure, i.e. the pressure at the high point of the system, is maintained at a level such that the fluid vaporizes in the temperature range of the solar collector. Vapor energy is extracted from the blanket vapor in the accumulator to energize an injector pump in the forced-convection heat transfer loop to motivate the heated fluid through the loop from the accumulator to the point-of-need heat exchanger for practical use.
    Type: Grant
    Filed: October 19, 1978
    Date of Patent: June 2, 1981
    Inventor: Leonard B. Vandenberg
  • Patent number: 4253562
    Abstract: A merchandise display package having transparent and adhesive properties for convenient display, protection, and stacking of soft merchandise.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: March 3, 1981
    Inventors: John D. Vandenberg, Leonard B. Vandenberg