Patents by Inventor Fredericus Liet

Fredericus Liet 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: 5009219
    Abstract: The invention relates to a heating device.A first object of the invention is to embody a heating device with a combustion space having at least one free side, such as an open hearth, or optionally a free-standing heater, such that it possesses a high yield. Another object is the embodying of this heating device such that in addition to use as a free-standing heater it can also be used as insert system for an open hearth. These objects are realized with a heating device characterized by a tilted, substantially U-shaped heat exchanger open to the front for heating air at the fireplace. This heat exchanger being provided with a lower heat exchanger part onto which can be laid solid fuel. For example, a number of pipes laid adjacent to one another, which lower part connects onto a standing heat exchanger part. For example, a number of pipes located at an interval from one another, such that the heat exchanger bounds the combustion space.
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: April 23, 1991
    Assignee: Liets Agrarische Technieken B.V.
    Inventor: Fredericus Liet
  • Patent number: 4538949
    Abstract: The invention relates to a conveyor device consisting of endless chains or the like, which are adapted to be driven and which are led over end rollers, while cross-bars extend between the chains, the cross-bars carrying teeth, the path which is followed by the cross-bars with the teeth including a conveying portion and an inactive portion which is positioned lower than the conveying portion. According to the invention the inactive portion of the path comprises a stretch, which extends partly towards the conveying portion and partly away from the conveying portion. The invention further relates to an apparatus for loosening and apportioning silage or the like material provided with a storage container, which comprises a carrier conveyor and a loosening conveyor, which loosening conveyor joins this carrier conveyor and is inclined upwardly. This loosening conveyor may be executed as the conveyor device described hereinabove.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: September 3, 1985
    Assignee: Trioliet-Mullos Silo Nederland B.V.
    Inventors: Cornelis H. Liet, Fredericus Liet
  • Patent number: 4341354
    Abstract: A device for cutting out and transporting a silage block, comprising a main frame which may be connected to a tractor and which comprises an at least approximately horizontal cross-beam, which carries a plurality of parallel tines and to which an upstanding main frame part is connected, which supports near its upper end an at least approximately horizontal frame member, along which a drive housing may be reciprocated. A sawing or cutting means is guided in this drive housing for upward and downward movement. The upstanding main frame part further supports a pressure frame underneath said frame member which extends near the track of the sawing or cutting means and which may be displaced by actuating means. The pressure frame comprises a plurality of pressure frame parts which are displaceable with respect to each other.
    Type: Grant
    Filed: May 7, 1980
    Date of Patent: July 27, 1982
    Assignee: Triolet Silo Europe BV
    Inventors: Fredericus Liet, Cornelis H. Liet
  • Patent number: 4336732
    Abstract: A device for cutting out and transporting a silage block, comprising a main frame which may be connected to a tractor and which comprises an at least approximately horizontal cross-beam, which carries a plurality of parallel tines and to which an upstanding main frame part is connected. This upstanding main frame part supports near its upper end an at least approximately horizontal frame member, which forms an approximately U-shaped guide along which a drive housing may be reciprocated. A sawing means is guided in this drive housing for upward and downward movement. In both corners of the frame member which are remote from the upstanding main frame part the sawing means is rotatable over at least approximately 90.degree. about an axis of rotation which is at least approximately stationary during this rotating motion and which extends at a distance from the longitudinal center line of the sawing means which is smaller than the width of the sawing means.
    Type: Grant
    Filed: June 6, 1980
    Date of Patent: June 29, 1982
    Assignee: Trioliet Silo Europe B.V.
    Inventors: Fredericus Liet, Cornelis H. Liet
  • Patent number: 4188759
    Abstract: A sheet for constructing the wall of a substantially cylindrical silo. This sheet has a substantially rectangular periphery and is slightly cylindrically curved according to the radius of the wall of the silo to be constructed. The sheet comprises first and second straight edges opposite one another and first and second curved edges also opposite one another. The sheet is provided with rows of bolt holes adjacent the four edges. The first straight edge and the first curved edge are provided with a flange, both flanges being positioned at the same side of the sheet and extending approximately perpendicularly to the sheet surface, the second straight edge and the second curved edge having no flange. The flange on the first straight edge ends at a distance from the second curved edge.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: February 19, 1980
    Assignee: Trioliet-Mullos Silo Nederland B.V.
    Inventors: Fredericus Liet, Cornelis H. Liet
  • Patent number: 4057295
    Abstract: A silo having a cylindrical wall comprising a discharging device, having a frame being vertically movable in the silo, in which a delivery tube having an eccentrical suction nozzle is rotatably arranged in a central bearing and comprising means for collecting the material stored in the silo into an annular heap corresponding to the course of the suction nozzle, said silo being constructed from substantially rectangular, slightly cylindrically curved, flanged sheets provided all around with bolt holes, at least one straight side of said sheets being not provided with a flange, whereas at least two adjacent sides are provided with a flange.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: November 8, 1977
    Assignee: Trioliet-Mullos Silo Nederland B.V.
    Inventors: Fredericus Liet, Cornelis Hendrikus Liet