Abstract: A system may include a vehicle for delivering items and a moveable track that cooperates with the vehicle. The moveable track may cooperate with a storage system having storage locations for storing items. The vehicle may drive into the moveable track and lift the track using a vertical drive mechanism. The vehicle may include a horizontal drive system operable to drive the vehicle horizontally along the ground to carry the moveable track to a position adjacent the storage location. The vehicle may operate the vertical drive system to drop the moveable track adjacent the storage system. Additionally, the vehicle may operate the vertical drive to drive up the moveable track to an elevated position adjacent one of the storage locations in the storage system. The vehicle may include a transfer mechanism for transferring items between the vehicle and the storage location while the vehicle is in the elevated position.

Abstract: A method and apparatus for processing mail is provided. A feeder serially feeds envelope from a stack of mail. Two cutters at a cutting station cuts one or two edges of the envelopes. As the envelopes travel from the feeder to the cutters the envelope is jogged on two edges to justify the contents with the envelopes. Additionally, an improved feeder is provided to reduce the number of jams created when feeding the envelopes from the stack.

Abstract: Respective items are retained as they are transported by mobile delivery mechanisms. An item to be delivered to a target storage location of a plurality of storage locations is positioned upon the carrying surface of a delivery mechanism. The carrying surface defines a retention zone bounded by a first wall, a second wall, a third wall and a fourth wall. At least one of the third wall or the fourth wall are displaceable to define an opening in the retention zone. The delivery mechanism moves from the location where an item is received to a location proximate the target storage location to facilitate transfer of the item through the opening obtained by displacing one of the third wall or the fourth wall. Irregularly shaped items are free—during movement of the delivery mechanism—to move upon the carrying surface and within the boundaries of the retention zone.

Abstract: A material handling system includes storage locations disposed in racks and a track having a vertical section adjacent one of the racks. A plurality of material handling vehicles are provided, each including a horizontal drive for driving the vehicle horizontally, a vertical drive for driving the vehicle vertically, and a mechanism for transferring items onto or off the vehicle. A vehicle accessory has an opening configured to cooperate with the vehicles. A central controller may be programmed to provide control signals to determine whether a mode of operation to perform an inventory management task is a first mode of operation or a second mode of operation. The central controller may then control the operation of one of the vehicles to operate without the vehicle accessory in a first mode or with the accessory in the second mode.

Abstract: A vehicle configured to perform inventory management tasks comprises first and second drive systems respectively actuated by a controller. In a first mode of operation, the first drive system is operable to drive the vehicle along a horizontal surface. In a second mode of operation, the second drive system is operable to drive the vehicle vertically. In a third mode of operation, the second drive system is operable to lift a module vertically to lift the module off the horizontal surface so that actuating the first drive system drives the vehicle and the module along the horizontal surface.

Abstract: A workstation for a material handling system is provided. The system may include a plurality of vehicles for retrieving items from a plurality of storage locations located in one or more racks. The workstation is configured to accommodate the vehicles so that the vehicles drive into the workstation and drive upwardly along a track in the workstation. In one configuration, the track is configured to tilt the vehicle at a predetermined angle relative to the horizon as the vehicle is driven upwardly. After the vehicle is tilted to the predetermined angle the vehicle continues to drive upwardly while maintaining the predetermined angle.

Abstract: A vehicle for use in an inventory management system having a plurality of destination areas and a guide system includes a platform for receiving and transporting items to and from the destination areas, a plurality of motors, a first drive system, a second drive system, a transfer mechanism, and a clutch mechanism. The transfer system is configured to transfer and retrieve items to and from the destination areas, and the clutch mechanism is configured to engage and disengage the transfer mechanism from at least one of the motors, whereby the second drive system drives movement of the vehicle independently of the transfer mechanism.

Abstract: A method and apparatus for processing mail is provided. A feeder serially feeds envelope from a stack of mail. Two cutters at a cutting station cuts one or two edges of the envelopes. As the envelopes travel from the feeder to the cutters the envelope is jogged on two edges to justify the contents with the envelopes. Additionally, an improved feeder is provided to reduce the number of jams created when feeding the envelopes from the stack.

Abstract: A method and apparatus are provided for sorting items to a plurality of sort bins. After the items are sorted into the sort bins the sort bins may be automatically emptied into separate containers. Alternatively, the sort bins may be discharged from the apparatus to be processed at a remote destination. The apparatus may include a plurality of delivery vehicles for delivering items to the sort bins. The apparatus may further include a plurality of retrieval vehicles for retrieving the sort bins after all the items for a grouping are sorted to the bin. The retrieval vehicles may be configured to move the retrieved bins to one or more discharge stations where the items in the sort bins may be emptied into separate containers such as boxes for shipping the items.

Abstract: A vehicle for use in an inventory management system having a plurality of destination areas and a guide system includes a platform for receiving and transporting items to and from the destination areas, a plurality of motors, a first drive system, a second drive system, a transfer mechanism, and a clutch mechanism. The transfer system is configured to transfer and retrieve items to and from the destination areas, and the clutch mechanism is configured to engage and disengage the transfer mechanism from at least one of the motors, whereby the second drive system drives movement of the vehicle independently of the transfer mechanism.

Abstract: A system may include a vehicle for delivering items and a moveable track that cooperates with the vehicle. The moveable track may cooperate with a storage system having storage locations for storing items. The vehicle may drive into the moveable track and lift the track using a vertical drive mechanism. The vehicle may include a horizontal drive system operable to drive the vehicle horizontally along the ground to carry the moveable track to a position adjacent the storage location. The vehicle may operate the vertical drive system to drop the moveable track adjacent the storage system. Additionally, the vehicle may operate the vertical drive to drive up the moveable track to an elevated position adjacent one of the storage locations in the storage system. The vehicle may include a transfer mechanism for transferring items between the vehicle and the storage location while the vehicle is in the elevated position.

Abstract: A method for operating an automated storage and retrieval system includes transferring a first item storage container from an aisle to a first region of a first storage location, positioning a second item storage container in the aisle proximate the first item storage container, interlocking the second item storage container to the first item storage container by engaging a releasable coupling structure extending there between, and applying, in a first direction transverse to the aisle, a force to the second item storage container sufficient in magnitude and duration to cause the first item storage container to occupy the second region of the first storage location and the second item storage container to occupy the first region of the first storage location, whereby the first and second item storage containers remain interlocked while in the first storage location.

Abstract: A system may include a vehicle for delivering items and a plurality of racks having a plurality of storage locations. The racks may be arranged to form one or more aisles. The vehicles are configured to drive horizontally along a path that may extend along a path under the racks that is parallel to the aisles. Additionally, the vehicles may be operated to turn while the vehicle is positioned under one of the racks. The vehicles may travel under the racks and cross one or more aisles to reach a particular column in one of the aisles. The vehicle climbs upwardly within the particular column to retrieve an item from a storage location in the column.

Abstract: A system may include a vehicle for delivering items and a plurality of racks having a plurality of storage locations. The racks may be arranged to form one or more aisles. The vehicles are configured to drive horizontally along a path that may extend along a path under the racks that is parallel to the aisles. Additionally, the vehicles may be operated to turn while the vehicle is positioned under one of the racks. The vehicles may travel under the racks and cross one or more aisles to reach a particular column in one of the aisles. The vehicle climbs upwardly within the particular column to retrieve an item from a storage location in the column.

Abstract: A material handling system includes storage locations disposed in racks and a track having a vertical section adjacent one of the racks. A plurality of material handling vehicles are provided, each including a horizontal drive for driving the vehicle horizontally, a vertical drive for driving the vehicle vertically, and a mechanism for transferring items onto or off the vehicle. A vehicle accessory has an opening configured to cooperate with the vehicles. A central controller may be programmed to provide control signals to determine whether a mode of operation to perform an inventory management task is a first mode of operation or a second mode of operation. The central controller may then control the operation of one of the vehicles to operate without the vehicle accessory in a first mode or with the accessory in the second mode.

Abstract: A method and apparatus are provided for sorting or retrieving items to/from a plurality of destinations areas. The items are loaded onto one of a plurality of independently controlled delivery vehicles. The delivery vehicles follow a track that guides the delivery vehicles to/from the destination areas, which are positioned along the track. Once at the appropriate destination area, an item is transferred between the delivery vehicle and the destination area.

Abstract: A workstation for a material handling system is provided. The system may include a plurality of vehicles for retrieving items from a plurality of storage locations located in one or more racks. The workstation is configured to accommodate the vehicles so that the vehicles drive into the workstation and drive upwardly along a track in the workstation. In one configuration, the track is configured to tilt the vehicle at a predetermined angle relative to the horizon as the vehicle is driven upwardly. After the vehicle is tilted to the predetermined angle the vehicle continues to drive upwardly while maintaining the predetermined angle.

Abstract: A system may include a vehicle for delivering items and a moveable track that cooperates with the vehicle. The moveable track may cooperate with a storage system having storage locations for storing items. The vehicle may drive into the moveable track and lift the track using a vertical drive mechanism. The vehicle may include a horizontal drive system operable to drive the vehicle horizontally along the ground to carry the moveable track to a position adjacent the storage location. The vehicle may operate the vertical drive system to drop the moveable track adjacent the storage system. Additionally, the vehicle may operate the vertical drive to drive up the moveable track to an elevated position adjacent one of the storage locations in the storage system. The vehicle may include a transfer mechanism for transferring items between the vehicle and the storage location while the vehicle is in the elevated position.

Abstract: A vehicle configured to perform inventory management tasks comprises first and second drive systems respectively actuated by a controller. In a first mode of operation, the first drive system is operable to drive the vehicle along a horizontal surface. In a second mode of operation, the second drive system is operable to drive the vehicle vertically. In a third mode of operation, the second drive system is operable to lift a module vertically to lift the module off the horizontal surface so that actuating the first drive system drives the vehicle and the module along the horizontal surface.