Patents by Inventor David Crenella

David Crenella 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: 8356698
    Abstract: Fixtures (22, 27) at a doorway (13) of a landing (14) are formed integrally with a door frame (17, 17a). The fixtures include electronic modules (42, 46, 54) and energy storage devices (43, 47, 55). Power may be supplied by a generator (32) rotated by a pinion (34) in response to a rack (35) on a hoistway door (20), or by electrical contacts (58) disposed on the hoistway side of the door frame which touch contacts (65) on an elevator car door (63) when the door is open, thereby receiving power over a line (66) from the elevator car; or power may be provided by an inductive coupler (70). The fixtures (22, 27) may be within the profile of the door frame (17), or extend outwardly from the profile of the door frame (17a).
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: January 22, 2013
    Assignee: Otis Elevator Company
    Inventors: Bruce Zepke, Adriana Bacellar, Luiz Bacellar, Dennis Bellamy, Christian Netter, Alberto Vecchiotti, William Veronesi, David Crenella, Michael Gozzo, Deborah C. Haas, Joseph Zacchio, Paul Stucky
  • Publication number: 20100294599
    Abstract: Fixtures (22, 27) at a doorway (13) of a landing (14) are formed integrally with a door frame (17, 17a). The fixtures include electronic modules (42, 46, 54) and energy storage devices (43, 47, 55). Power may be supplied by a generator (32) rotated by a pinion (34) in response to a rack (35) on a hoistway door (20), or by electrical contacts (58) disposed on the hoistway side of the door frame which touch contacts (65) on an elevator car door (63) when the door is open, thereby receiving power over a line (66) from the elevator car; or power may be provided by an inductive coupler (70). The fixtures (22, 27) may be within the profile of the door frame (17), or extend outwardly from the profile of the door frame (17a).
    Type: Application
    Filed: March 20, 2003
    Publication date: November 25, 2010
    Applicant: OTIS ELEVATOR COMPANY
    Inventors: Bruce Zepke, Adriana Bacellar, Luiz Bacellar, Dennis Bellamy, Christian Netter, Alberto Vecchiotti, William Veronesi, David Crenella, Michael Gozzo, Deborah C. Haas, Joseph Zacchio, Paul Stucky
  • Patent number: 6956463
    Abstract: A system master unit is connected to a 24V AC power source. One or more slave units is connected to the master unit by a power/communication line. Bulk capacitance in the master and slave units stores power during a power source positive half cycle. When the source voltage is higher than the bulk capacitance voltages, power is delivered to the loads, during which time communication cannot take place over the power/communication line. During the power source negative half cycle, the power/communication line is disconnected from the AC power source and is then used for communication between the master and slave units. System power is delivered from the energy stored in the bulk capacitance.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: October 18, 2005
    Assignee: Carrier Corporation
    Inventors: David Crenella, Michael Steel Smyth
  • Publication number: 20040066245
    Abstract: A system master unit is connected to a 24V AC power source. One or more slave units is connected to the master unit by a power/communication line. Bulk capacitance in the master and slave units stores power during a power source positive half cycle. When the source voltage is higher than the bulk capacitance voltages, power is delivered to the loads, during which time communication cannot take place over the power/communication line. During the power source negative half cycle, the power/communication line is disconnected from the AC power source and is then used for communication between the master and slave units. System power is delivered from the energy stored in the bulk capacitance.
    Type: Application
    Filed: October 2, 2002
    Publication date: April 8, 2004
    Inventors: David Crenella, Michael Steel Smyth
  • Patent number: 6601679
    Abstract: Elevator system hall fixtures such as lanterns, hall call button switches and lights, gongs, and floor position indicators are connected to a controller via wireless transceivers. The controller can be a system, group, and/or car controller. A low power wireless system connects all fixtures on one hallway, with a higher power wireless system connecting each hallway with the appropriate controller.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: August 5, 2003
    Assignee: Otis Elevator Company
    Inventors: David Crenella, Michael P. Gozzo, Richard R. Grzybowski, Jeffrey M. Izard, Robert G. Morgan, Chester J. Slabinski
  • Publication number: 20030047390
    Abstract: Elevator system hall fixtures such as lanterns, hall call button switches and lights, gongs, and floor position indicators are connected to a controller via wireless transceivers. The controller can be a system, group, and/or car controller. A low power wireless system connects all fixtures on one hallway, with a higher power wireless system connecting each hallway with the appropriate controller.
    Type: Application
    Filed: September 5, 2001
    Publication date: March 13, 2003
    Applicant: Otis Elevator Company
    Inventors: David Crenella, Michael P. Gozzo, Jeffrey M. Izard, Robert G. Morgan, Chester J. Slabinski
  • Patent number: 5984051
    Abstract: Remote control devices borne by potential passengers are alerted to initiate a request for elevator service by beacons in the building. The beacon alert message includes a tag identifying the floor on which the beacon is located and a position on the floor at which the beacon is located. The floor description tags prevent transmissions of the remote device from being recognized on floors other than the floor on which the device was alerted by a beacon, whereby transmission power of the remote devices may be quite high to assure reception anywhere on the floor, while being ignored on adjacent floors.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: November 16, 1999
    Assignee: Otis Elevator Company
    Inventors: Robert G. Morgan, David Crenella, Bruce E. Zepke, Harold Terry, Eric K. Jamieson