Patents by Inventor Peter Hoefling

Peter Hoefling 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: 6129442
    Abstract: A lighting device for passenger conveyors, such as escalators and travelators, is provided particularly in the region of the handrail and/or skirting of the passenger conveyor, and includes at least one light-guide oriented in the conveying direction of the passenger conveyor, substantially continuously, having lateral light emission and which in the region of at least one of its ends can receive the bundled light beam of a light source. The light-source runs along the length of the conveyor and its end faces a projector whereby light generated by an electric lamp of the projector is passed through a light concentrator to bundle the light into a concentrated beam. The bundled light beam is projected onto the end of the light-guide thereby lighting one of the handrail and the step track, respectively, along the transport direction of the passenger conveyor.
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: October 10, 2000
    Assignee: O&K Rolltreppen GmbH & Co. KG
    Inventors: Peter Hoefling, Eckhard Knoop, Klaus Schoeneweiss
  • Patent number: 5785166
    Abstract: A drive system for the steps and carriage pallets of escalators and moving idewalks. A conveyor chain is arranged beside the steps or carriage pallets, the conveyor chain having a number of link pins of different axial lengths cooperating with bushes. The link pins are axially longer and respectively fitted with a running roller provided in the region of the steps or carriage pallets and are connected with these, if desired, via further components. Also provided are a plurality of plates cooperating, also by way of running rollers if desired, with the axially shorter link pins and bushes. The plates are connected in a manner fixed against relative rotation as inner plates to the bushes and as outer plates to the link pins. Sealing elements are provided in the region of both faces of the bushes. The link pins are formed by electroplated, case-hardened steel pins and the bushes are made of a case-hardened quenched and tempered steel and electroplated between the link pins.
    Type: Grant
    Filed: April 8, 1996
    Date of Patent: July 28, 1998
    Assignees: O&K Rolltreppen GmbH of Hattingen, Ketten Wulf GmbH Gelenkketten- Und Kettenraderfabrik of Eslohe-Kuckelheim
    Inventors: Peter Hoefling, Hermann Wilke, Henrik Hauser
  • Patent number: 5379877
    Abstract: A handrail drive located at a reversal region of a handrail. The handwheel drive has a motor-gear assembly including an electric motor and a multistage planet gear assembly. The handwheel drive further includes a handrail wheel having a drive region connected with the motor-gear assembly. The drive region and the motor-gear assembly are co-axially located.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: January 10, 1995
    Assignee: O&K Orenstein & Koppel AG
    Inventor: Peter Hoefling