Patents by Inventor Alfred Kais

Alfred Kais 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: 6543728
    Abstract: The invention relates to a cross frog (10) for points and crossings, comprising a cross frog tip (14) and wing rails (16, 18) and running rails (20, 22) situated either side of this point, each with a basic course (38) aligned with a main or secondary track (26, 28). The aim of the invention is to reduce the wear around the cross frog tip without reconstructing the cross frog tip itself or the guard rails allocated thereto or realigning them in relation to each other. To this end, at least one of the running rails deviates from its basic course in the area of the cross frog tip, in such a way that the movement of a rail vehicle running through the main or secondary track is influenced through its wheel frame or bogie axle, away from the cross frog tip.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: April 8, 2003
    Assignee: BWG GmbH & Co. KG
    Inventors: Sebastian Benenowski, Alfred Kais, Stefan Schmedders
  • Patent number: 6270018
    Abstract: The invention relates to a track with rail track section (10) which differs from the usual basic layout. In order to check changes in track layout in a simple manner, the invention provides that the rail track section (10) has a cutout (24) running parallel to the basic layout in a longitudinal direction of the track. When the rail track section is placed parallel to the basic layout, the layout of said cutout is inversely the same as that of the desired change in layout.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: August 7, 2001
    Assignee: BWG Butzbacher Weichenbau GmbH & Co. KG
    Inventors: Alfred Kais, Burkhard Zillien, Sebastian Benenowski
  • Patent number: 6177205
    Abstract: A process for manufacture of a railroad track part, in particular a large points part, with rail parts such as a frog point and connecting rails, and the track part obtained. The track part is made of materials of differing composition, one of which is a carbon steel and one of which is an austenitic manganese steel, which are connected by welding and are subsequently subjected to a joint heat treatment. To permit joining of the materials without negative effects on their properties, the parts are joined directly by electron beam welding or indirectly via an intermediate layer comprising a nickel-based alloy, the joined parts then being heated to a temperature T and held over a time t such that for the austenitic manganese steel, solution annealing takes place, and for the carbon steel, austenitizing takes place.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: January 23, 2001
    Assignee: BWG Butzbacher Weichenbau GmbH
    Inventors: Alfred Kais, Gerhard Ratz, Walter Kunitz
  • Patent number: 6068196
    Abstract: An expansion joint for part of a railway track arranged on a foundation has a stock rail with a stock rail head and a tongue movable with respect to and along said stock rail head, upon which at least one fastening device acys for pressing it on the stock rail. This expansion joint enables the rail foot to be lingitudinally moved with little friction and excludes tipping of the stock rail or tongue. For that purpose, the tongue is not bolted, but pressed only against the stock rail by the fastening device, and the force thus transmitted is decomposed into components that act, on the other hand, in the direction of the foundation and, on the other hand, in the direction of the stock rail head. The force is transmitted by a rolling element extending from a shaft which is anchored to the foundation.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: May 30, 2000
    Assignee: BWG Butzbacher Weichenbau, GmbH
    Inventors: Sebastian Benenowski, Hubertus Hohne, Alfred Kais, Erich Nuding
  • Patent number: 5645216
    Abstract: A bearing system for a part of a railroad track, such as a rail-fastening or ribbed slab (10), supported by elastic elements on, for example, a railroad sleeper. The elastic elements form a spring system with a kinked characteristic curve such that when the spring system is subjected to force that is smaller than the forces active in the operative range (16) of the spring system, the characteristic curve rises steeply and, in the operative range (16), runs flat.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: July 8, 1997
    Assignee: BWG Butzbacher Weichenbau GmbH
    Inventors: Sebastian Benenowski, Albrecht Demmig, Hans-Ulrich Dietze, Alfred Kais, Erich Nuding
  • Patent number: 5605281
    Abstract: A support system for a rail section which bridges the gap between foundations which are relatively movable auxiliary rails running parallel to the rail across the sleepers which are supported by the foundation, and underpinning supports providing a stiff connection between rail and auxiliary rails. The underpinning supports move in response to relative movement of the foundation so that undesirable rail bending is avoided.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: February 25, 1997
    Assignee: BWG Butzbacher Weichenbau, GmbH
    Inventors: Sebastian Benenowski, Hubertus Hohne, Alfred Kais, Erich Nuding
  • Patent number: 5590833
    Abstract: An expansion joint for part of a railway track arranged on a foundation has a stock rail with a stock rail head and a tongue movable with respect to and along said stock rail head, upon which at least one fastening device acts for pressing it on the stock rail. This expansion joint enables the rail foot to be longitudinally moved with little friction and excludes tipping of the stock rail or tongue. For that purpose, the tongue is not bolted but pressed only against the stock rail by the fastening device, and the force thus transmitted is decomposed into components that act on the one hand in the direction of the foundation and on the other hand in the direction of the stock rail head.
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: January 7, 1997
    Assignee: BWG Butzbacher Weichenbau, GmbH
    Inventors: Sebastian Benenowski, Hubertus H ohne, Alfred Kais, Erich Nuding
  • Patent number: 5522570
    Abstract: Rail construction including laterally adjacent frog sections with guard rails outwardly spaced to each side thereof by interposed liners. The components are interconnected by a transverse tightened bolt with vertical misalignment precluded by either nesting projections on adjacent abutting faces of the components or by a rigid, preformed sleeve press-fit within the bore receiving the bolt, the sleeve extending through the frog sections and at least partially through the liners.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: June 4, 1996
    Assignee: BWG Butzbacher Weichenbau GmbH
    Inventors: Sebastian Benenowski, Hubertus Hohne, Alfred Kais, Erich Nuding
  • Patent number: 5222700
    Abstract: A device for locking a switch blade with a stock rail which includes a locking piece connected to the stock rail. The locking piece has an opening through which the longer leg of an L-shaped locking clamp extends. A switch element also extends through the opening and has an upper surface in contact with the longer leg of the L-shaped member which extends below the foot of the switch blade. The shorter leg has an end free to articulate with respect to a shaft. The shaft is further connected with a clamp receiver or clamp notch. The pivot axis of the clamp receiver member and shorter leg extends parallel with the switch blade and is positioned above the foot of the switch rail such that the clamp receiver member slopes downwardly between the shaft and connection point with the switch blade.
    Type: Grant
    Filed: May 2, 1991
    Date of Patent: June 29, 1993
    Assignee: BWG Butzbacher Weichenbau GmbH
    Inventors: Alfred Kais, Erich Nuding, Sebastian Benenowski
  • Patent number: 5195703
    Abstract: A device for locking a switch blade (10, 12) with a stock rail (14, 16) is proposed, whereby the switch blade is held down on a supporting surface only when it is in locked and unlocked positions. When the switch blade (10, 12) is in the locked position it is acted upon by a resultant force (53) that prevents both a rotation of the switch blade and its rising up.
    Type: Grant
    Filed: May 2, 1991
    Date of Patent: March 23, 1993
    Assignee: BWG Butzbacher Weichenbau GmbH
    Inventors: Alfred Kais, Erich Nuding, Sebastian Benenowski
  • Patent number: 5184791
    Abstract: A frog tip that can be moved relative to the wing rail is proposed, in which the contact surfaces each curve away from the frog tip and the wing rails in a lengthwise direction.
    Type: Grant
    Filed: May 2, 1991
    Date of Patent: February 9, 1993
    Assignee: BWG Butzbacher Weichenbau GMBA
    Inventors: Alfred Kais, Erich Nuding, Sebastian Benenowski
  • Patent number: 5158414
    Abstract: A rail attachment device which allows for longitudinal displacement of a rail. The rail attachment device includes a first element fixedly supported to a ribbed plate and having a vertical arm extending essentially parallel to the longitudinal direction of the rail. The rail attachment device also includes a second element which is connected to the web of the stock rail. Connecting elements connect the first element to the second element so as to allow for longitudinal shifting of the stock rail and second element with respect to the first element fixed to the ribbed plate. In one embodiment, the second element includes a web-plate fixed to the web of the stock rail by a bolt and a plate-like element connected to the web-plate and having longitudinally extending slots. The connecting elements pass through holes formed in the vertical arm and through the elongated slots.
    Type: Grant
    Filed: May 2, 1991
    Date of Patent: October 27, 1992
    Assignee: BWG Butzbacher Weichenbau GmbH
    Inventors: Alfred Kais, Erich Nuding, Sebastian Benenowski
  • Patent number: 4925135
    Abstract: An arrangement is proposed for controlled guidance of a wheel axle (22) or of a bogie of a rail vehicle passing over points, whereby the wheel contact point (48, 50) is subjected to a controlled influence such that the wheel axle runs substantially vertical to the track longitudinal axis. The controlled influence of the wheel contact point can be exerted by, for example, the stock rail (32) veering away outwards in the area that the blade begins.
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: May 15, 1990
    Assignee: BWG Butzbacher Weichenbau GmbH
    Inventors: Rudiger Ziethen, Sebastian Benenowski, Alfred Kais, Erich Nuding