Abstract: This storage and retrieval machine consists of an enclosure with an enclosure opening and two independently positionable doors, which move vertically to block or provide access into the storage machine. The enclosure contains one or more shelf stacks, where each shelf stack has multiple, easily adjustable, drawer-style shelves to form storage areas of various vertical dimensions. One may combine several shelf stacks to form a rotatable storage cylinder. Shelves used with either the fixed or rotatable shelf supports can be blocked by one or both doors to prohibit their repositioning.

Abstract: A storage cylinder within an enclosed storage unit that secures stored items and inhibits shelf repositioning during normal operation. The design allows shelf reconfiguration during maintenance and restocking. The storage cylinder contains rectangular-shaped and triangular-shaped storage areas. Most importantly, all storage areas (including those with a generally triangular-shape) have parallel faces with horizontal slots that are used for shelf support. Such a design requires radial movement to reposition the shelves. In its closed position the maintenance door or baffle mechanism restricts shelf removal. Therefore, during normal operation, when the maintenance door or baffle is closed, shelf repositioning is not possible. However, access panels still allow removal of stored objects. During maintenance or restocking, the maintenance door or baffle mechanism allows removal and installation of shelves.

Abstract: When stowed, this leg rest lies flat on the floor partially under the passenger's feet and partially under the seat. The leg rest pivots up from the floor to a raised position so that the edge nearest the seat aligns with the front of the seat pan. In its raised position, the leg rest and seat together form a continuous support surface along the entire length of a passenger's body.

Abstract: This invention relates to a passenger seat for economy class transportation. The seat has an inclinable back rest, a moveable seat pan, an adjustable leg rest, and a foot rest. When stowed, the leg rest lays flat on the floor partially under the passengers feet and partially under the forward seat, using minimal passenger space. The leg rest pivots up from the floor and aligns with the front of the seat pan to form a continuous support surface along the entire length of a passengers body.