Patents by Inventor Knuth Wallbaum

Knuth Wallbaum 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: 7614490
    Abstract: A passenger conveyor handrail (30) has a gripping surface (32, 42, 52, 62, 72, 82) with a generally circular cross-section. Disclosed examples include a toothed driven surface (34, 44, 54, 64, 74, 84) that is adapted to be engaged by a toothed driving member (28) for propelling the handrail in a desired direction. Disclosed examples include having the generally circular cross-section extend along an entire length of the handrail (30) corresponding to the closed loop path followed by the handrail during operation of a corresponding passenger conveyor.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: November 10, 2009
    Assignee: Otis Elevator Company
    Inventors: John M. Milton-Benoit, Mary Ann T. Valk, Bryan R. Siewert, Andre Picker, Matthias Steffen, Andreas Stuffel, Klaus Seehausen, Knuth Wallbaum
  • Publication number: 20080202890
    Abstract: A passenger conveyor handrail (30) has a gripping surface (32, 42, 52, 62, 72, 82) with a generally circular cross-section. Disclosed examples include a toothed driven surface (34, 44, 54, 64, 74, 84) that is adapted to be engaged by a toothed driving member (28) for propelling the handrail in a desired direction. Disclosed examples include having the generally circular cross-section extend along an entire length of the handrail (30) corresponding to the closed loop path followed by the handrail during operation of a corresponding passenger conveyor.
    Type: Application
    Filed: November 14, 2005
    Publication date: August 28, 2008
    Inventors: John M. Milton-Benoit, Mary Ann T. Valk, Bryan R. Siewert, Andre Picker, Matthias Steffen, Andreas Stuffel, Klaus Seehausen, Knuth Wallbaum
  • Patent number: 5755315
    Abstract: A handrail drive for a passenger conveyor includes a drive belt that does not encompass either the main drive shaft or the handrail drive shaft. In a particular embodiment, the drive belt includes a plurality of outwardly extending teeth and is formed from a reinforced elastomeric material. The teeth are engaged with complementary toothed extensions on the main and handrail drive shafts. Two pair of deflection rollers maintain contact between the drive belt and drive shafts and an adjustable spring maintains tension in the drive belt.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: May 26, 1998
    Assignee: Otis Elevator Company
    Inventors: Knuth Wallbaum, Jorg Ostermeier, Kurt Pietsch
  • Patent number: 5634546
    Abstract: A newel guide for supporting a passenger conveyor handrail traveling over a newel includes an integral one piece body and a plurality of rollers. The one piece body may be formed by an extrusion process and formed into the desired shape. In a particular embodiment, the one piece body incorporates an attachment portion, a deflector portion and a portion to retain the rollers. A transition piece is used between the newel guide and the handrail guide to smoothly transition between the guides. The transition piece has a profile to match the newel guide on one end and a profile to match the handrail guide on the opposite end.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: June 3, 1997
    Assignee: Otis Elevator Company
    Inventors: Jorg Ostermeier, Knuth Wallbaum, Bernward Engelke
  • Patent number: 5542522
    Abstract: A balustrade assembly is provided having a shaped panel holder for supporting a balustrade panel, an outer decking and an inner profile. The inner profile, outer decking and panel holder include a clip apparatus which enable the outer decking and inner profile to be attached to the panel holder in a constant aligned position, independent of the balustrade panel. A method for assembling a balustrade assembly is also provided including the steps of providing a balustrade panel for supporting a handrail, a shaped panel holder, an inner profile, an outer decking, and apparatus for clipping the panel holder, the inner profile, and the outer decking together.
    Type: Grant
    Filed: April 26, 1993
    Date of Patent: August 6, 1996
    Assignee: Otis Elevator Company
    Inventors: Willy Adrian, Frank Bathge, Peter Borchers, Kurt Pietsch, Knuth Wallbaum, Gerald Wente
  • Patent number: 5511647
    Abstract: An illuminated information display is provided for a passenger conveying device comprising a light source, a housing, and a display panel for mounting on the outer decking of passenger conveying device balustrade. According to an aspect of the present invention, a balustrade for a passenger conveying device is provided comprising an illuminated information display. According to another aspect of the present invention, a balustrade outer decking is provided having a light source incorporated therein.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: April 30, 1996
    Assignee: Otis Elevator Company
    Inventors: Willy Adrian, Peter Borchers, Michael Fohrer, Knuth Wallbaum, Gerald Wente, Rainer Zimmerman