Patents by Inventor Bruce A. Powell

Bruce A. Powell 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: 5923004
    Abstract: A method for training a neural network used to estimate for an elevator the remaining response time for the elevator to service a hall call. The training, which results in adjusting connection weights between nodes of the neural network, is performed while the elevator is in actual operation. The method is not restricted to any particular architecture of neural network. The method uses a cutoff to limit changes to the connection weights, and provides for scaling the different inputs to the neural network so that all inputs lie in a predetermined range. The method also provides for training in case the elevator is diverted from servicing the hall call by an intervening hall call.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: July 13, 1999
    Assignee: Otis Elevator Company
    Inventors: Bradley L. Whitehall, Theresa M. Christy, Bruce A. Powell
  • Patent number: 5862886
    Abstract: To prevent elevator rope stretch effects when a horizontally transferable elevator cab (18) is rolled onto and off of an elevator car frame (10), an elevator car/floor lock (31) includes a bolt (47) which extends across the interface between the car frame and the building and engages a strike (39). Jack screw (44) and solenoid (60) embodiments are shown. To take the weight off the lock bolts so that they may be retracted to permit moving the car frame vertically in the hoistway, strain gages (64, 65) or load sensors (62, 63) provided in or adjacent the bolts sense the weight supported thereby, and a pretorque program (FIG. 6) provides armature current to the hoisting motor to raise or lower the car frame sufficiently to reduce the load on the bolts to nil.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: January 26, 1999
    Assignee: Otis Elevator Company
    Inventors: Paul Bennett, Bruce A. Powell, Samuel C. Wan, Anthony Cooney, Richard C. McCarthy, Joseph Bittar, Frederick H. Barker, John K. Salmon, deceased, LucyMary Salmon, executor
  • Patent number: 5861586
    Abstract: Elevator cabs are transferred between elevators, which may be shuttles, in various levels of a building, such as transport floors, in response to car calls registered in the cabs and hall calls registered on the transport floors. The cabs may be transferred from carriages or bogeys onto elevator car frames in a lateral direction, which is perpendicular to the motion of the cab on a carriage or bogey, or in a longitudinal direction which is the same as the direction of motion of a cab on a carriage or bogey. The horizontal/vertical control and transfer may be effected in response to the arrival at transport floors of elevators having cabs therein, or in response to the arrival at an elevator of a bogey carrying a cab which must be transported between a transport floor on one level of a building and a transport floor on another level of a building, in order to serve the need of a car call registered therein or a hall call.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: January 19, 1999
    Assignee: Otis Elevator Company
    Inventors: Richard C. McCarthy, Joseph Bittar, Frederick H. Barker, Bruce A. Powell, Samuel C. Wan, Paul Bennett, Anthony Cooney, John K. Salmon, deceased
  • Patent number: 5861587
    Abstract: A method of operating a double deck elevator system when the trailing elevator deck (26,28) is empty, whereby the leading deck answers all registered hall calls except upon the occurrence of certain conditions.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: January 19, 1999
    Assignee: Otis Elevator Company
    Inventors: Bruce A. Powell, Joseph C. Walker
  • Patent number: 5844179
    Abstract: An elevator system having a double-deck car (24) normally responds to unanswered up hall calls from intermediate floors with the upper deck (26), except, under one or more conditions, whereby a subsequent stop may be avoided, its lower deck (28) is utilized.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: December 1, 1998
    Assignee: Otis Elevator Company
    Inventors: Joseph C. Walker, Bruce A. Powell
  • Patent number: 5829553
    Abstract: A first slidable auxiliary pinion (58a) on the bottom of a horizontally moveable elevator cab A (FIGS. 2-6) disposed on a car frame (14) or a landing is moved out from under the cab toward another car frame (13) or landing by means of a motorized pinion (56) until it engages a motorized pinion (57) on the adjacent car frame (13) or landing, which then pulls the auxiliary pinion and the entire cab toward the other car frame or landing until a main rack (45) fixed to the bottom of the cab engages a motorized pinion (34) on the other car frame (13) or landing, which pinion then pulls the entire cab onto the other car frame or landing. The auxiliary racks (58a, 58b) may be mounted on a common auxiliary rack member (58), or may be separate. The auxiliary motorized pinions (55, 56, 57) may be bidirectional, or may be; and auxiliary pinions (32C, 33C, 34C) may be; mounted on the same shaft with main pinions (32b, 33b, 34b).
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: November 3, 1998
    Assignee: Otis Elevator Company
    Inventors: Samuel C. Wan, Bruce A. Powell, Paul Bennett, Anthony Cooney, Richard C. McCarthy, Joseph Bittar, Frederick H. Barker, LucyMary Salmon
  • Patent number: 5823299
    Abstract: A plurality of express shuttle elevators S1-S4 exchange elevator cabs at a transfer floor 26 with local elevators L1-L10 by means of a carriage 107, the casters of which 93 are guided by tracks 70-83. The transfer floor has linear induction motor (LIM) primary segments 60-67 disposed on the transfer floor; the carriage has a LIM secondary 128 thereon for propulsion. The carriages can be locked 91, 92 to the transfer floor for loading, and cabs can be locked 131 onto the carriages for stability when being moved. A controller (FIGS. 10-13) keeps track of the progress of the cabs from one elevator to another.
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: October 20, 1998
    Assignee: Otis Elevator Company
    Inventors: Gilbert W. Wierschke, Frederick H. Barker, Paul Bennett, Anthony Cooney, Richard C. McCarthy, Joseph Bittar, Bruce A. Powell, Samuel C. Wan
  • Patent number: 5785153
    Abstract: The arrival of each of four dual-hoistway shuttle elevators S1-S4 is synchronized with a selected one of ten local elevators L1-L10, or ten low rise elevators L1-L10 and ten high rise elevators H1-H10 at a transfer floor 26 by limiting 140 the speed of the shuttle, gradually 149, or rapidly 154, 155 decreasing the speed of the shuttle, delaying a local elevator by holding its doors open for extra time, or controlling the speed of a local elevator, by cancelling or avoiding hall calls. Empty local elevators may be allowed to remain at the high end of the building, or compelled to travel to the lobby if needed. Elevators approaching a transfer floor may be synchronized by adjusting the speed of one of them until the remaining distance is the same for both. Hall calls may be prevented, cancelled, or negatively biased in dependence upon the tardiness of a local elevator.
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: July 28, 1998
    Assignee: Otis Elevator Company
    Inventors: Bruce A. Powell, Joseph Bittar, Frederick H. Barker, Samuel C. Wan, Paul Bennett, Anthony Cooney, Richard C. McCarthy, John K. Salmon, deceased
  • Patent number: 5773772
    Abstract: A plurality of express shuttle elevators S1-S4 exchange elevator cabs at a transfer floor 26 with local elevators L1-L10 by means of a carriage 107, the casters of which 93 are guided by tracks 70-83. The transfer floor has linear induction motor (LIM) primary segments 60-67 disposed on the transfer floor; the carriage has a LIM secondary 128 thereon for propulsion. The carriages can be locked 91, 92 to the transfer floor for loading, and cabs can be locked 131 onto the carriages for stability when being moved. A controller (FIGS. 10-13) keeps track of the progress of the cabs from one elevator to another.
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: June 30, 1998
    Assignee: Otis Elevator Company
    Inventors: Richard C. McCarthy, Joseph Bittar, Frederick H. Barker, Bruce A. Powell, Samuel C. Wan, Paul Bennett, Anthony Cooney, John K. Salmon, deceased
  • Patent number: 5771995
    Abstract: To prevent elevator rope stretch effects when a horizontally transferable elevator cab (18) is rolled onto and off of an elevator car frame (10), an elevator car/floor lock (31) includes a bolt (37) which extends across the interface between the car frame and the building and engages a strike (39). Jack screw (44) and solenoid (60) embodiments are shown. The bolt may extend from the car frame to the building (FIGS. 1-4) or from the building to the car frame (FIG. 5).
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: June 30, 1998
    Assignee: Otis Elevator Company
    Inventors: Anthony Cooney, Frederick H. Barker, Bruce A. Powell, Samuel C. Wan, Paul Bennett, Richard C. McCarthy, Joseph Bittar
  • Patent number: 5758748
    Abstract: An elevator cab X is moved from a hoistway TL to a car frame (11) simultaneously with moving a cab Y from the car frame (11) onto a landing TR. Double deck car frames (11a) may be utilized with cars P, Q going in the opposite direction of cars X, Y as they are transferred between the car frame and corresponding landings.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: June 2, 1998
    Assignee: Otis Elevator Company
    Inventors: Frederick H. Barker, Paul Bennett, Anthony Cooney, Richard C. McCarthy, Joseph Bittar, Bruce A. Powell, Samuel C. Wan, John K. Salmon, deceased
  • Patent number: 5752585
    Abstract: Elevator cabs A-C move upwardly through three or more contiguous overlapping hoistways 38-40 in the upper decks of double deck car frames 41-43, and move downwardly through the hoistways in the lower decks (or vice versa). To switch between decks, the cabs are offloaded from the hoistways into auxiliary elevators 50, 51 at the terminal ends of the shuttle, and are moved to be adjacent to the other deck by the auxiliary elevator and loaded thereon for the trip in the opposite direction. A second embodiment has additional auxiliary elevators 64, 65 and additional cabs D, E so that loading and unloading of passengers do not delay movement of the cabs in the hoistways.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: May 19, 1998
    Assignee: Otis Elevator Company
    Inventors: Joseph Bittar, Anthony Cooney, Richard C. McCarthy, Frederick H. Barker, Bruce A. Powell, Samuel C. Wan, Paul Bennett, LucyMary Salmon
  • Patent number: 5749441
    Abstract: An elevator shuttle includes a plurality of elevator hoistways (14, 19, 24) which overlap, the elevator car frames (13, 21, 25) traveling in each hoistway including two decks per cab being carried by the car frame, plus an extra deck on car frames (20) in other than the highest (24) and lowest (14) hoistways. This allows cabs (C) traveling simultaneously, upwardly, in three or more hoistways to pass cabs (A, B) simultaneously traveling downwardly in those hoistways. The cabs may be loaded and unloaded while in the hoistway (FIGS. 1, 13, 21) or while in off-hoistway landing areas (FIG. 28). Embodiments include one cab per hoistway and two cabs per hoistway; three hoistways and four hoistways.
    Type: Grant
    Filed: January 18, 1996
    Date of Patent: May 12, 1998
    Assignee: Otis Elevator Company
    Inventors: Joseph Bittar, Paul Bennett, Gilbert W. Wierschke, Samuel C. Wan, Bruce A. Powell, Frederick H. Barker, Richard C. McCarthy, Anthony Cooney
  • Patent number: 5695024
    Abstract: A safety gate (24) is slidable vertically from an upper position at an elevator cab landing (22) where it obstructs movement of the elevator cab (20) into a hoistway, and a lower position that permits cab travel between a car frame (29) and the landing. An actuator (42) normally urges the gate upwardly; the actuator is moved by a cam assembly (36) on an approaching elevator car frame so as to slide the gate (24) downward, out of the way of cab motion.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: December 9, 1997
    Assignee: Otis Elevator Company
    Inventors: Samuel C. Wan, Frederick H. Barker, Bruce A. Powell, Gilbert W. Wierschke, Paul Bennett, Anthony Cooney, Richard C. McCarthy, Joseph Bittar
  • Patent number: 5672853
    Abstract: A remaining response time for an elevator car under consideration for assignment to a newly registered hall call is estimated by using a neural network. The neural network or any other downstream module may be standardized for use in any building by use of an upstream fixed length stop description that summarizes the state of the building at the time of the registration of the new hall call for one or more postulated paths of each and every car under consideration for answering the new hall call.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: September 30, 1997
    Assignee: Otis Elevator Company
    Inventors: Bradley L. Whitehall, David J. Sirag, Jr., Bruce A. Powell
  • Patent number: 5668356
    Abstract: Each car in a group of elevator cars in a building is determined to be available or not depending on whether it is assigned in the group, whether it is the only delayed car, whether it is fully loaded without intervening car calls which comprise all the car calls, whether it has intervening hall calls, and whether other cars in the group are fully loaded with or without some chance of offloading passengers before reaching a call to be assigned. Among available cars, assignment is made based on each car's membership in fuzzy sets relating to low, medium or high delay in that car responding to the call and each car's membership in fuzzy sets indicative of the extent to which assignment of that car will have no adverse effect or a very high adverse effect on the response to already-assigned hall calls. The call is assigned to the car with the highest summation of weighted memberships in the fuzzy sets.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: September 16, 1997
    Assignee: Otis Elevator Company
    Inventors: Bruce A. Powell, Jannah Stanley, David J. Sirag, Jr.
  • Patent number: 5663539
    Abstract: Double deck elevator cars (10-12) are moveable in corresponding adjacent overlapping hoistways (7-9). Passengers entering the bottom deck (39) from a ground landing are transferred into the bottom deck (47) of a second elevator as passengers in the upper deck (46) of the second elevator are transferred to the upper deck (38) of the first elevator. Passengers in the lower deck (31) of a third elevator (10) are transferred to a lower landing (33) as passengers in an upper landing (32) enter an upper deck (30) of the third elevator. Passengers are thereafter transferred in the same fashion between the second elevator and the third elevator at a second transfer level (49).
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: September 2, 1997
    Assignee: Otis Elevator Company
    Inventors: Bruce A. Powell, Richard C. McCarthy, Joseph Bittar, Frederick H. Barker, Samuel C. Wan, Paul Bennett, Anthony Cooney, John K. Salmon, deceased
  • Patent number: 5660249
    Abstract: Horizontally moveable elevator cabs (22, 23) are transferred from the upper deck of a first car frame (26) to the upper deck of a second car frame (27) and from the lower deck of the second car frame to the lower deck of the first car frame. Three elevator hoistways, each with a double deck car frame are controlled by computer routines. A rack and pinion horizontal motive means, for moving the cab from car frame to car frame is also briefly disclosed.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: August 26, 1997
    Assignee: Otis Elevator Company
    Inventors: Bruce A. Powell, Joseph Bittar, Frederick H. Barker, Samuel C. Wan, Paul Bennett, Anthony Cooney, Richard C. McCarthy
  • Patent number: 5655625
    Abstract: A particular elevator (1-9) is commandeered to transfer an emergency cab F to (or near) a floor where an alarm has been sounded. The commandeered car is brought to the floor FF where the emergency cab is parked. The fire cab is exchanged for the normal cab C on the commandeered car, and is then carried to (or near) the alarm floor for responding to the alarm. Passengers in the normal cab may exit through landing doorways (23). Emergency personnel have access to the alarm area through emergency hoistway doors (27). A rack and pinion horizontal motive means for moving the cabs is illustrated (FIG. 12 ).
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: August 12, 1997
    Assignee: Otis Elevator Company
    Inventors: Frederick H. Barker, LucyMary Salmon, Paul Bennett, Anthony Cooney, Richard C. McCarthy, Joseph Bittar, Bruce A. Powell, Samuel C. Wan
  • Patent number: 5651426
    Abstract: Horizontally moveable elevator cabs A-E are transferrable between the car frames (72) of two elevators HI, LO in adjacent hoistways which extend between at least three levels (GND, MID, SKY) of a building, and between the car frames and landings L, R at said levels. The vertical movement of cars in the hoistways is synchronized, and transfer of elevator cabs between landings and car frames is simultaneous.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: July 29, 1997
    Assignee: Otis Elevator Company
    Inventors: Joseph Bittar, Anthony Cooney, Richard C. McCarthy, Frederick H. Barker, Bruce A. Powell, Samuel C. Wan, Paul Bennett, LucyMary Salmon