Patents by Inventor David Sirag Jr.

David Sirag Jr. 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).

  • Elevator traffic control
    Publication number: 20070007086
    Abstract: An elevator traffic flow control strategy utilizes the advantages of sector assignment channeling and destination entry systems. A controller (30) monitors a handling capacity (62) of the system to determine when it is advisable to override the sector assignments (52) to provide improved passenger service.
    Type: Application
    Filed: October 8, 2003
    Publication date: January 11, 2007
    Inventor: David Sirag Jr
  • Elevator traffic control
    Publication number: 20060196734
    Abstract: An elevator system includes a plurality of cars (22-30) that are capable of serving a plurality of floors (2-17). A controller (42) groups the floors into a plurality of sectors (S1-S4). The controller (42) assigns a particular car to a particular sector. The sectors include at least one sector that has at least one floor that is not contiguous with the other floors in that sector.
    Type: Application
    Filed: August 6, 2003
    Publication date: September 7, 2006
    Inventors: Robert LaBarre, David Sirag Jr.
  • Elevator dispatching with guaranteed time performance using real-time service allocation
    Publication number: 20060191748
    Abstract: The registration of each hall call (20, 21) is recorded (27) and the remaining response time of all available cars to each up hall call and each down hall call is determined. 21 The response time for each car to answer is compared against a limit and a table indicates whether that car can answer that call in less than the wait time limit or not. The time limit may be adjusted upwardly or downwardly.
    Type: Application
    Filed: May 13, 2003
    Publication date: August 31, 2006
    Inventor: David Sirag Jr.