Patents Assigned to F. Von Langsdorff Licensing Limited
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Patent number: 7220078Abstract: The invention relates to an artificial stone floor element with a basic shape that corresponds to the combination of a plurality of square basic elements, especially to an angular floor element. The floor element includes projections and recesses along its peripheral sides of the basic element when seen from the centre of the respective top face of the basic element is substantially point-symmetric with respect to its mid-point. The floor element in further embodiments includes a profile that consists of three projections and three recesses.Type: GrantFiled: July 26, 2005Date of Patent: May 22, 2007Assignee: F.von Langsdorff Licensing LimitedInventors: Andreas Drost, Michael Schmitz
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Publication number: 20050254894Abstract: The invention relates to an artificial stone floor element with a basic shape that corresponds to the combination of a plurality of square basic elements, especially to an angular floor element. The floor element includes projections and recesses along its peripheral sides of the basic element when seen from the centre of the respective top face of the basic element is substantially point-symmetric with respect to its mid-point. The floor element in further embodiments includes a profile that consists of three projections and three recesses.Type: ApplicationFiled: July 26, 2005Publication date: November 17, 2005Applicant: F. von Langsdorff Licensing LimitedInventors: Andreas Drost, Michael Schmitz
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Patent number: 6942420Abstract: The invention relates to an artificial stone floor element with a basic shape that corresponds to the combination of a plurality of square basic elements, especially to an angular floor element. The floor element includes projections and recesses along its peripheral sides of the basic element when seen from the center of the respective top face of the basic element is substantially point-symmetric with respect to its mid-point. The inventive floor element is further characterized in that the profile consists of three projections and three recesses.Type: GrantFiled: August 5, 2003Date of Patent: September 13, 2005Assignee: F. Von Langsdorff Licensing LimitedInventors: Andreas Drost, Michael Schmitz
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Patent number: 6938382Abstract: A palisade comprises visible or wall surfaces disposed on opposing sides and intermediate end faces. One of the end faces is provided with a projecting convex head, while the other end face comprises a correspondingly formed concave receptacle for the head. When forming a palisade wall, the head of a palisade can engage in the receptacle of a neighboring palisade such that the head substantially completely fills the receptacle. To be able to bend neighboring palisades relative to one another over a large angle and to increase the design possibilities of a palisade wall, the head and the receptacle are disposed eccentrically on the respective end face and preferably in the corner region between the end face and the associated visible or wall surface.Type: GrantFiled: December 9, 2002Date of Patent: September 6, 2005Assignee: F. Von Langsdorff Licensing LimitedInventor: Michael Schmitz
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Publication number: 20050155321Abstract: The invention relates to a set of components used for producing a load-bearing structure for gratings, comprising pillars and support beams which are removably connected to the pillars via couplings. Flat network-type supporting frames of variable sizes can be formed by using couplings that preferably comprise four connecting elements which are arranged in a cruciform manner for the corresponding connecting elements of the supporting beams. A vertical space can be created between two supporting frames by means of spacers that are disposed on the pillars.Type: ApplicationFiled: October 15, 2004Publication date: July 21, 2005Applicant: F. von Langsdorff Licensing LimitedInventor: Georg Wagner
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Patent number: 6857244Abstract: There has been disclosed a cast stone (1) for securing traffic areas outdoors, with the stone (1) bearing at least one pair consisting of a protrusion (9) and an adjacent recess (10) substantially matching the form of the protrusion of the adjoining laid stone (1). It is provided that the tip of the protrusion (9) and the bottom (13) of the recess (10) have an integrally moulded layer (12) of material facing away from the associated lateral face (3, 4).Type: GrantFiled: December 6, 2002Date of Patent: February 22, 2005Assignee: F. Von Langsdorff Licensing LimitedInventor: Michael Schmitz
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Patent number: 6790544Abstract: The present invention relates to a multiple layer composite material and to a method for producing the same. Said multiple layer composite material has at least one layer of cement-bound concrete and at least one layer of polymer-bound concrete. The transition between adjacent layers of cement-bound concrete and polymer-bound concrete has at least the material strength of the less stable one of the concrete layers adjoining the transition. The layer of polymer-bound concrete allows the diffusion of water vapor, but does not allow liquid water to penetrate. The multiple layer composite material can be produced completely in an aqueous system.Type: GrantFiled: March 15, 2002Date of Patent: September 14, 2004Assignee: F. Von Langsdorff Licensing LimitedInventor: Michael Schmitz
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Patent number: 6171015Abstract: An anchoring of outdoor traffic areas provided with cobblestones or paving stones made of a plastic or natural stone material is cited, in which the stones are laid in a bed of sand and/or grit. The anchoring method provides for the stones to be further supported by an extensive supporting structure provided with openings and laid on top of the bed.Type: GrantFiled: July 3, 1997Date of Patent: January 9, 2001Assignee: F. Von Langsdorff Licensing LimitedInventors: Gunter Barth, Michael Schmitz
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Patent number: 5902069Abstract: There is provided an artificial stone for strengthening traffic surfaces in the open, in which the stone, in order to provide wide grooves between adjacently laid stones, is provided on its edge surfaces with integrally formed, completely identical spacer elements, the contacting free end surfaces of the spacer elements having, adjacent one another, a tooth and a recessed contact surface for the tooth of the adjacently laid stone; the tooth-recess sequence, in one peripheral direction of the stone, being the same for all spacer elements; the effective length of the individual edge surfaces of a stone, parallel to the laying plane, being the same as, or a whole-number multiple of, a smallest effective length; each edge surface segment which has the smallest effective length being provided with a spacer element; and the central axes of all spacer elements lying in the middle of the corresponding edge surface segment.Type: GrantFiled: February 20, 1997Date of Patent: May 11, 1999Assignee: F. Von Langsdorff Licensing LimitedInventors: Gunter Barth, Michael Schmitz
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Patent number: 5360285Abstract: A set of shaped stones for paving ground areas with wide gaps between the shaped stones is provided which comprises first and second shaped stones, with the second shaped stones having a smaller plan view area than the first shaped stones. A plurality of integral spacing projections are provided on the periphery of only one of the first and second shaped stones for defining the wide gaps in the shaped stone pavement.Type: GrantFiled: May 4, 1992Date of Patent: November 1, 1994Assignee: F. von Langsdorff Licensing LimitedInventors: Gunther Barth, Fritz von Lansdorff, Harald von Langsdorff
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Patent number: 5342142Abstract: An angular paving stone (2) for paving areas, comprising two outer sides (16), two inner sides (18) and two face sides (20). At the five outer corners (4) of the angular paving stone (2) there are provided quarter recesses (22). At the center of the outer sides (16) of the angular paving stone (2) there are provided half recesses (24). At the inner corner (6) of the angular paving stone (2) there is provided a three-quarter recess (26). The partial recesses (22, 24, 26) supplement each other in the paved area so as to form full recesses (38) for water discharge.Type: GrantFiled: December 3, 1992Date of Patent: August 30, 1994Assignee: F. von Langsdorff Licensing LimitedInventors: Gunther Barth, Fritz von Langsdorff, Harald von Langsdorff
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Patent number: D510443Type: GrantFiled: March 16, 2004Date of Patent: October 4, 2005Assignee: F. Von Langsdorff Licensing LimitedInventor: Harald Von Langsdorff
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Patent number: D511012Type: GrantFiled: November 14, 2003Date of Patent: October 25, 2005Assignee: F. Von Langsdorff Licensing LimitedInventor: Harald Von Langsdorff
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Patent number: D485370Type: GrantFiled: January 3, 2003Date of Patent: January 13, 2004Assignee: F. Von Langsdorff Licensing LimitedInventors: Michael Schmitz, Andreas Drost
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Patent number: D486588Type: GrantFiled: December 9, 2002Date of Patent: February 10, 2004Assignee: F. von Langsdorff Licensing LimitedInventor: Michael Schmitz
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Patent number: D498543Type: GrantFiled: August 3, 2001Date of Patent: November 16, 2004Assignee: F. von Langsdorff Licensing LimitedInventors: Michael Schmitz, Andreas Drost
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Patent number: D396901Type: GrantFiled: September 5, 1996Date of Patent: August 11, 1998Assignee: F. von Langsdorff Licensing LimitedInventor: Harald von Langsdorff
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Patent number: D399978Type: GrantFiled: February 16, 1995Date of Patent: October 20, 1998Assignee: F. Von Langsdorff Licensing LimitedInventors: Gunther Barth, Fritz Von Langsdorff, Harald Von Langsdorff