Elevators And Drops Patents (Class 186/22)
  • Patent number: 10507982
    Abstract: Described are systems, methods, and apparatus for managing the movement of inventory items within a materials handling facility using rollable containers and a gravity feed conveyance system. Inventory items are placed in the rollable containers and are routed to different locations within the materials handling facility along the gravity feed conveyance system, through use of gravitational forces that cause the rollable containers to roll. By using gravity to route inventory items within the materials handling facility, the energy and power requirements for the materials handling facility are reduced, which reduces overhead costs and which is better for the environment.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: December 17, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Martin Peter Aalund, Jon Stuart Battles, David Henry Clark, Ned Lecky, Jayson Michael Jochim
  • Patent number: 8827041
    Abstract: Carrier car door assemblies respectively comprising a carrier car comprising a body, a door, a drive mechanism, a driven mechanism, and a magnetic release mechanism are disclosed herein. The carrier car travels along a track system between teller and customer stations to transport materials there-between. The door is connected to the body and movable between a door-closed position and a door-open position. The drive mechanism is connected to the body and to the driven mechanism so that the drive and driven mechanisms synchronously move between respective door-closed positions and door-open positions. The magnetic release mechanism is connected to the driven mechanism and moves from a magnetically coupled state to a magnetically de-coupled state when a user manually moves the door from the door-open position to the door-closed position. The magnetic release mechanism in the magnetically coupled state synchronously moves with the driven mechanism between door-closed and door-open positions.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: September 9, 2014
    Inventors: Michael E. Brown, Christopher L. Michael
  • Patent number: 6928684
    Abstract: A lift is coupled to the outer cab or rotunda of a telescoping bridge. The lift has a carriage that can be moved by a cable and a motor upward or downward and which includes a platform that has sensing means for controlling the motor for stopping downward movement of the carriage when it engages the ground. An electrically operated safety catch is provided to prevent the carriage form falling in the event the cable breaks. A safety system is provided which prevents the bridge from moving if the carriage is not in the up position and its door is not closed.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: August 16, 2005
    Assignee: JetBridge Technology, Inc.
    Inventors: William Clay Ratliff, Fredrick Charles Keish, Jr.
  • Patent number: 4345802
    Abstract: An overhead dispenser having vertically telescopic movable shelf units.
    Type: Grant
    Filed: September 17, 1980
    Date of Patent: August 24, 1982
    Assignee: AMF, Inc.
    Inventor: Egon Sorensen
  • Patent number: 4019605
    Abstract: In a food delivery system for restaurants, a conveyor tray adapted to receive a food container and to move along an overhead conveyor track from a central station along a loop including a series of delivery stations at patrons tables, an elevator including an elevator tray at each of the stations, trip mechanism at each station operable when actuated to remove the food container from the conveyor tray to the elevator tray at the station, the trip mechanisms being selectively actuated from a central location, mechanism operable by the reception of the food container on the elevator tray to lower said elevator tray to a position within reach of the patron, and to reset the trip mechanism, and mechanism operable by removal of the food container from the elevator tray to re-elevate the tray into operative relation with the conveyor.
    Type: Grant
    Filed: August 23, 1976
    Date of Patent: April 26, 1977
    Inventor: Frederic F. Kropf