Patents by Inventor David Krampl

David Krampl 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: 6685001
    Abstract: An escalator or moving walkway comprises at least one support structure which is supported between bearings. At least one upstanding support, which may be an arch or column, is provided. The support structure is connected at several points to the arch or the column, preferably by cables or rods. The columns or arches may be provided at each of the two sides of the moving walkway or the escalator and if the columns or arches and converge or run together above the escalator or moving walkway.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: February 3, 2004
    Assignee: Inventio AG
    Inventor: David Krampl
  • Publication number: 20030116402
    Abstract: A support construction for an escalator or moving walkway comprises at least one framework element integrally constructed as a flat, non-profiled, cut plate. Multiple framework elements can be assembled into a unitary support construction. By virtue of the simple structure of the support construction. Wherein little welding work is needed, production time for the support construction is substantially reduced over conventional constructions.
    Type: Application
    Filed: December 18, 2002
    Publication date: June 26, 2003
    Inventor: David Krampl
  • Patent number: 6527098
    Abstract: An escalator or moving walkway includes a support structure supported between the rests at a cable, which is arranged laterally or below the support structure. According to the invention there is provided in the region of each rest a respective lever which is rotatably mounted at the support structure and is slidingly supported by one arm at the building structure, the cable being fastened to the other arm of the lever so that the cable is additionally tensioned when the support structure bends. In this manner, the construction is very stiff so that the escalator bends only slightly even under heaving loading.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: March 4, 2003
    Assignee: Inventio AG
    Inventor: David Krampl
  • Publication number: 20030000799
    Abstract: An escalator or moving walkway comprises at least one support structure which is supported between bearings. At least one upstanding support, which may be an arch or column, is provided. The support structure is connected at several points to the arch or the column, preferably by cables or rods. The columns or arches may be provided at each of the two sides of the moving walkway or the escalator and if the columns or arches and converge or run together above the escalator or moving walkway.
    Type: Application
    Filed: June 11, 2002
    Publication date: January 2, 2003
    Inventor: David Krampl
  • Publication number: 20030000800
    Abstract: An escalator or moving walkway includes a support structure supported between the rests at a cable, which is arranged laterally or below the support structure. According to the invention there is provided in the region of each rest a respective lever which is rotatably mounted at the support structure and is slidingly supported by one arm at the building structure, the cable being fastened to the other arm of the lever so that the cable is additionally tensioned when the support structure bends. In this manner, the construction is very stiff so that the escalator bends only slightly even under heaving loading.
    Type: Application
    Filed: July 1, 2002
    Publication date: January 2, 2003
    Inventor: David Krampl
  • Publication number: 20020179403
    Abstract: For reduction in externally excited oscillations there is provided at an escalator or a moving walkway an oscillation damper which is connected with the escalator or the moving walkway within a self-supporting region, preferably at the point of greatest oscillation displacement. The oscillation damper is preferably a speed-proportional plate damper comprising plates which move relative to one another in viscous oil.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 5, 2002
    Inventor: David Krampl
  • Patent number: 6374981
    Abstract: An escalator and moving walkway construction has spaced first and second basic wall supports arranged laterally of a step or plate conveying run. The rigidity of such a support construction is enhanced, in the case of use with large support widths, in that at least one respective supplementary wall support is laterally flange-mounted to each of the basic wall supports of the support construction.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: April 23, 2002
    Assignee: Invento AG
    Inventors: Gero Gschwendtner, David Krampl
  • Patent number: 5697486
    Abstract: A device for the guidance of an endless belt for escalators or moving walkways in an endless belt of an escalator or a moving walkway, the chain rollers are guided by way of a support rail having a running track and by way of a compensating rail having a running track, and at the entry of a chain wheel, which deflects the endless belt, the chain rollers move from the rectilinear running track of the support rail onto the curved running track of the compensating rail and move from the compensating rail, at a tangent point, into engagement with the chain wheel, with the chain rollers being displaced, towards the chain wheel, by a spacing (h.sub.0), during the movement thereof, from the running track of the support rail to the tangent point, with the spacing being measured transversely to the running direction, in the direction extending at right angles to the running direction, with this displacement having an advantageous effect on the quietness of operation of the endless belt.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: December 16, 1997
    Assignee: Investio AG
    Inventor: David Krampl