Abstract: An access chamber assembly for use in a pneumatic transport system with a sealing arrangement that provides an intended bearing clearance relative to an access door device which is rotated between an open, access state and a closed state. The bearing clearance allows for radial adjustment of the door while being rotated between states of being fully closed and fully open to avoid binding and seal friction noise.

Abstract: The hydraulic transportation apparatus and method of the present invention incorporate a multiple chamber framework internally disposed preferably within at least one single shaft structure, which facilitates movement of object transport containers within the multiple chamber framework. Preferably, fluid elevation is employed to elevate and lower object transport containers and their contents within the multiple chamber framework. Each single shaft structure may be constructed from an existing rehabilitated shaft, or a newly drilled shaft. The present invention may be utilized in vertical or incline lifting environments, and an auxiliary hoist chamber may be incorporated into the multiple chamber framework for use as an alternative to, or in conjunction with, elevating objects by employing fluid elevation. The present invention may be employed in a variety of heavy lifting scenarios, including underground mining or in above ground lifting environments.

Abstract: A storage facility includes a storage structure having a floor and a boundary wall upwardly extending therefrom, the floor and boundary wall bounding a chamber adapted to receive bulk material. A transfer pipe includes a base section that extends outside of the storage structure and a raised section disposed and upwardly extending within the chamber. The transfer pipe terminates at an outlet port disposed in an upper portion of the chamber. A pump is coupled with the transfer pipe for conveying bulk material through the transfer pipe and into the chamber.

Abstract: A pneumatic transport system including an up receive/down send customer terminal having a pivot assembly for vertically and pivotally displacing a pneumatic carrier between a vertical position and an angularly disposed presentation position. The customer terminal includes a movable carrier cradle assembly to absorb relatively small impact forces from a vehicle mirror or other moving object. The carrier cradle assembly also includes a break away feature for limiting damage to the customer terminal from greater impact forces. A blower in the customer terminal is operative in pressure and vacuum modes to supply pressure differentials to selectively move the carrier. An up receive/down send operator terminal includes a rotatable door for opening and closing a carrier access opening. A component panel assembly is movable to allow access to terminal components of the operator terminal.

Abstract: A pneumatic transfer system includes a service provider terminal and a customer terminal. A carrier is moved through a transfer conduit between the customer and service provider terminals by a differential pressure generating mechanism. Each of the customer terminal and the service provider terminal includes a valve assembly to control air flow on the lower side of the carrier as it moves in the transfer conduit. Each valve assembly includes elongated valve openings in the terminal housing and a gate assembly for selectively blocking air flow through the valve openings. The valve openings are angularly disposed from the carrier transfer opening in the terminal. The valve assemblies may be selectively operated to control air flow during dispatch of the carrier from one terminal and descent of the carrier into the other terminal.

Abstract: A pneumatic carrier transport system includes a user terminal. A piston of a rodless cylinder can be used to telescopically move a blocking cylinder. The blocking cylinder is vertically displaced to an open position to permit manual access to a carrier received at the terminal. With the blocking cylinder at the open position, a carrier can also be manually placed into the terminal. The blocking cylinder is formed of transparent material to allow a user to view a carrier received at the terminal while the blocking cylinder is in a closed position. The terminal includes control mechanisms on opposite sides to enable two users to operate and access the carrier at the user terminal.

Abstract: A sputter pallet loading and unloading device includes in one embodiment a spindle that rotates the pallet while an arm is engaged with the spring in the pallet to open and close the spring. In another embodiment, the spindle is located adjacent an air track that moves the disk substrate over a cushion of air to the loading area of the pallet. The air pressure under the disk substrate is increased to raise the disk substrate into the loading area. Once raised into the loading area, the spring is closed, e.g., by rotating the pallet in the opposite direction. The pallet and air-track are at a small angle to allow the substrate to slide into the correct position. The simplicity of operation leads to a reduced cost and a higher throughput for this device compared to a robotic loader.

Abstract: A pneumatic tube conveyor station serves for receiving conveying cases (12) rriving from a forwarding tube (11) and having a high weight of, for example, 12 kg and a high travelling speed of, for example, 7 m/s. The conveying cases (12) are initially braked in a rotatable intermediate store (15) and are then transferred, after the intermediate store (15) has been rotated, to a unloading position (56). The intermediate store (15) is arranged in a position above the forwarding tube (11) and the unloading position (56). The intermediate store (15) and the unloading position (56) are connected one with the other by a substantially vertical tube section (40, 41, 55).

Abstract: A pneumatic transport system, particularly useful as a mail transport system, which includes a transport carrier moving through a pneumatic tube line between remote sending/receiving stations is described. Movement of the transport carrier through the pneumatic tube line is by means of a positive or negative air flow in the tube line provided by a blower means. The air flow direction is controlled by utilizing a series of adjustable valves, such as butterfly valves. The system additionally employs sensors for indicating the presence of the carrier in the exterior station.

Abstract: A pneumatic transport system includes a pneumatic transport tube having a stop device mounted therein. A window aperture is defined through a wall of the transport tube such that a pneumatic tube carrier is presented for retrieval through the window aperture upon its arrival. A pneumatic pressure source is provided to cause the carrier to move through the transport tube.

Abstract: The present invention describes a stop device for stopping a carrier traveling in a pneumatic tube. The invention also includes a terminal comprising the stop device. The stop device includes a pneumatic tube having an exhaust aperture and a shutoff aperture and a pressure sensing monitor in fluid communication with the shutoff aperture. The pressure monitor senses the pressure change in the shutoff aperture caused by the carrier's movement past the shutoff aperture and activates a switch shutting off the pneumatic source. The carrier impacts an end stop and settles down on a catch which was also activated by the pressure monitor. The carrier is held in front of a door through which the carrier may be readily retrieved.