Abstract: A chute system having a pneumatically actuated access door where the door is journally mounted to an access port in the wall and communicates with the chute to direct objects inserted into the access port to the chute. When an operator actuates a switch, the door may be opened by a pneumatic forcer connected between the access port frame and the door so as to form a lever arm about the door journal. The pneumatic forcer is mounted to the door with a slidable journal such that the door may be opened manually. The duration of the open state of the door is determined by a timing mechanism which removes the pneumatic pressure after a time has elapsed, enabling a spring to urge the door into the closed position.

Abstract: A structure and method for building a continuous structural frame and cabinet of variable length is provided comprising a plurality of U-shaped structures, a plurality of interconnecting members, and a wall. The plurality of structures are connected together in vertical position by the plurality of horizontal interconnecting members and the wall. In assembly of the invention, the wall may be inserted into the open channel formed by the U-shaped structures, whereupon pairs of guiding slots formed in the periphery of the wall engage the structures, and moved downwardly rigidly interconnecting the wall with the structures. A counter surface, vertical panels, drawers, hinged doors and the like may be affixed to the structural frame to define a counter base usable in a home kitchen, garage, laboratory, office, shop or the like.

Abstract: A bracket assembly for cooperating with dry wall to provide a wall mount for a shelf or some other object. The bracket is fabricated of sheet material such as metal, has a side leg adapted to seat flush against the dry wall, and has at least two apertures formed through the side leg. Holes are formed through the dry wall in alignment with the apertures. At least two lever pins are inserted through aligned apertures and holes and then pivoted so that inner pin sections grip the dry wall when outer pin sections are snapped into retaining means on the side leg.