Patents Assigned to Braas GmbH
  • Patent number: 6268410
    Abstract: A method for producing colored concrete bodies, particularly colored concrete roof tiles, whereby pigment is added to the unprocessed concrete mix. In order to provide the production of permanently colored concrete bodies with reasonably priced pigments which are stable in outdoor exposure and are resistant to light, particularly UV, alkaiis and heat. A cement compatible aqueous polymer dispersion in which organic pigment is dispersed is added to the unprocessed concrete mix. Suitable cement compatible polymer dispersions are aqueous polymer dispersions based on styrene and/or pure acrylate. Phthalocyanine and quinacridone pigments are particularly suitable as organic pigments.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: July 31, 2001
    Assignee: Laferge Braas GmbH
    Inventors: Andreas Drechsler, Daniel Neupert, Silke Werner
  • Patent number: 6258439
    Abstract: A covering material which can be plastically deformed by band and extended in at least one direction. The covering material has a substrate with openings, at least the top side of which substrate has a top coating which covers the openings. To create an economical covering material for covering the gap between a planar surface and a structured surface, in particular a highly structured roof surface, the covering material can be extended in at least one direction more than 30%, can be bent perpendicular to the direction of extension, and the entire surface of which covering material can be permanently and plastically deformed in three dimensions. The top coating is of a thin flat stock and that the coated substrate is, at least in the direction opposite the direction of extension, compressed, crepe-like, by at least 25% of its original length so that the surface of the covering material exhibits irregular little corrugations.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: July 10, 2001
    Assignee: Lafarge Braas GmbH
    Inventor: Karl-Heinz Hofmann
  • Patent number: 6182404
    Abstract: A sub-roofing element for a flat, plate-shaped structural element, in particular for a solar energy collection module that can be fastened to joist elements that can be laid on a pitched roof in the ridge-eaves direction, whereby the sub-roofing element is made of watertight material and has at least one water channel.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: February 6, 2001
    Assignee: Lafarge Braas GmbH
    Inventors: Manfred Rinklake, Norbert Rösler
  • Patent number: 6119415
    Abstract: A solar energy collection system for a pitched roof covered with roofing plates, with support elements that can be laid in the ridge-eaves direction. The support elements can be laid overlapping one another in the ridge-eaves direction, whereby plate-shaped modules having cells are located on the joist elements butted up against one another or adjacent to neighboring roof covering plates. The length of which modules can be greater than the greatest coverage length of a roofing plate, and the width of which can be greater than the system coverage width of the roofing plate.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: September 19, 2000
    Assignee: Braas GmbH
    Inventors: Manfred Rinklake, Norbert Rosler
  • Patent number: 6105331
    Abstract: A joist element for fastening a flat, plate-shaped structural element to a pitched roof. In particular for fastening a solar energy collection module, whereby the joist element, laid in the ridge-eaves direction, can be fastened to the roof substructure.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: August 22, 2000
    Assignee: BRAAS GmbH
    Inventors: Manfred Rinklake, Norbert Rosler
  • Patent number: 6090329
    Abstract: A method for producing colored concrete bodies, particularly colored concrete roof tiles, whereby pigment is added to the unprocessed concrete mix. In order to provide the production of permanently colored concrete bodies with reasonably priced pigments which are stable in outdoor exposure and are resistant to light, particularly UV, alkalis and heat. A cement compatible aqueous polymer dispersion in which organic pigment is dispersed is added to the unprocessed concrete mix. Suitable cement compatible polymer dispersions are aqueous polymer dispersions based on styrene and/or pure acrylate. Phthalocyanine and quinacridone pigments are particularly suitable as organic pigments.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: July 18, 2000
    Assignee: BRAAS GmbH
    Inventors: Andreas Drechsler, Daniel Neupert, Silke Werner
  • Patent number: 6074589
    Abstract: A tool for cutting and shaping a lower edge of a profiled unfinished concrete roofing tile manufactured using the extrusion method, having a tool holder, a cutting insert provided with a cutting edge, and a template. To create a tool which has a significantly increased useful life for cutting and shaping an unfinished concrete roofing tile, the invention teaches that the tool holder and the template are realized in one piece in the form of a support body with a recess for the adhesive and positive connection of the cutting insert, that the cutting insert is made of tungsten carbide and is fastened in the recess by means of adhesive, and that the cutting insert is in contact by means of its upper edge with at least one projection of the support body.
    Type: Grant
    Filed: January 2, 1998
    Date of Patent: June 13, 2000
    Assignee: Braas GmbH
    Inventors: Helmut Rapp, Heinrich Stephan, Frank Wojtalewicz
  • Patent number: 5557897
    Abstract: A fastening device for anchoring a sealing strip on a roof includes an elongated fastener which penetrates both a holder and the sealing strip and has a drill tip at a lower end thereof extending into the roof substructure. An opposite upper end of the fastener has an enlarged upper end engaged in an opening in the holder to press the holder against and anchor the sealing strip on the roof. A cover having a recessed underside for receiving the holder and a central hole with a slit-like depression for receiving a catch-shaped projection extending upwardly from the head of the fastener is rotated to drive the fastener and the holder into position on the sealing strip while at the same time covering the opening in the holder to prevent entry of rainwater and the like. As the cover engages the sealing strip, the cover eventually disengages the fastener so that only the cover rotates.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: September 24, 1996
    Assignee: BRAAS GmbH
    Inventors: Klaus Kranz, Reinhard Schubert
  • Patent number: 5223200
    Abstract: A method for making concrete roof tiles includes the steps of forming a continuous elongated ribbon or layer of concrete; cutting the continuous layer into a row of spaced end to end ribbon sections having a front edge and a rear edge; precompacting the front edge of one of two adjacent ribbon sections and compacting the precompacted front edge of the other ribbon section.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: June 29, 1993
    Assignee: Braas GmbH
    Inventors: Hans E. Schulz, Jurgen Braas
  • Patent number: 5080840
    Abstract: An apparatus and a proces for the manufacture, by the extrusion method, of roof covering plates having at their underside a transverse flange shaped thereto. At a filling station cavities in the pallets corresponding to the transverse flange, are first filled with a hardenable plastic material such as fresh concrete, and said material is then compacted at at least one compacting station. Thereafter, a continuous layer of the material is deposited at a depositing station. The material is finally processed to roof covering plates.
    Type: Grant
    Filed: May 23, 1990
    Date of Patent: January 14, 1992
    Assignee: Braas GmbH
    Inventors: Gunter Jost, Manfred Weisweiler
  • Patent number: 5002816
    Abstract: For sealing the ridge cover of a pitched roof there is used a sealing strip (10) comprising a center strip (11) with an air-permeable, water-repellent and drifting snow-tight non-woven material (12) including side strips (20, 30) contiguous therewith, at least the outer longitudinal edges of said side strips being adaptable to the top surfaces of roofing tiles (2'). Each side strip comprises soft, extensible polyisobutylene sheet strips having an expanded metal embedded therein which exhibits a longitudinal extensibility of 50 to 150% and a transverse extensibility of >20% and a recovery of >5%.
    Type: Grant
    Filed: November 10, 1988
    Date of Patent: March 26, 1991
    Assignee: Braas GmbH
    Inventors: Karl-Heinz Hofmann, Wilhelm Rottger
  • Patent number: 4986744
    Abstract: An apparatus for manufacturing concrete roof tiles by extrusion includes a coating system adapted to be supplied with green concrete and to apply a continuous layer of green concrete onto a continuous strand of movable, positively advanced bottom molds (14), a compacting roll (25) and a smoothing member (35) immediately downstream thereof in the manufacturing direction for compacting and possibly shaping the basic green concrete layer passing therebeneath on the bottom molds. There is provided downstream--as viewed in the manufacturing direction--of the smoothing member (35) for the basic layer (17) and separated therefrom by a gap (40) extending transversely to the manufacturing direction, at least a further smoothing member (45) for another layer, especially a cover layer (18), to be applied onto the basic layer (17). The material for said other layer is supplied under pressure through the gap (40).
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: January 22, 1991
    Assignee: Braas GmbH
    Inventors: Manfred Weisweiler, Gunter Jost