Patents by Inventor Daniel R. Drop

Daniel R. Drop 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: 6397976
    Abstract: A potential elevator passenger or occupant (bearer) carries a portable transmitting device with which he must overtly indicate his intent to take an elevator trip before interrogation by a beacon will cause an elevator call to be automatically registered for him, or indicate his intent before gaining access to a space. The intent to take a trip is cancelled when the bearer enters an elevator car, requiring an additional overt act prior to entering an automatic elevator call the next time that the bearer approaches an elevator. Default destinations (floors or spaces) may be signified for the bearer, depending on the floor where the device is located, or the bearer may establish an alternative destination, the alternative destination being cancelled from the device when the bearer enters an elevator or gains access to a space. The intent may be managed and a default destination may be provided either by the portable device or by a system in the building.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: June 4, 2002
    Assignee: Otis Elevator Company
    Inventors: Charles F. Hale, Daniel R. Drop
  • Patent number: 6202799
    Abstract: The next destination for an automatically registered elevator call is displayed to a passenger on a portable card that he carries, when he passes a beacon adjacent to the elevator, only if the destination is designated as “fixed”; if the destination is designated as “unfixed”, a new next destination is determined from a record of the passenger's destinations (which may include a history of the passenger's travel habits) and the floor upon which the beacon is situated. A transponder remote from the elevator entrance responds to a transmission from the card to register a hall call for that floor; a transponder in the car can sense a transmission from the card to enter a car call for the destination floor; if there is no car transponder, the destination is stored and a car call entered automatically upon the arrival of a car in response to the hall call. If the passenger enters a new destination, it is designated as “fixed”.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: March 20, 2001
    Assignee: Otis Elevator Company
    Inventor: Daniel R. Drop