Carrier automatic braking system

Details Carrier automatic braking system Carrier automatic braking system

1998-06-22

2000-03-21

Pike, Andrew C.

Conveyors: fluid current

With means to control conveying fluid or movement of load in...

Control of conveying fluid

406 84, 406112, B65G 5120

Patent

active

060395109

ABSTRACT:
A pneumatic transmission system having a carrier automatic braking system contains a transport conduit having a first end and a second end and being capable of permitting the transfer of a carrier therethrough, a first station for sending and receiving a carrier located on one end of the transmission conduit, and a second station for sending and receiving a carrier located on the other end of the transmission conduit. A motor blower, capable of moving a volume of air through a conduit, is enclosed within a supply/exhaust branch which is connected to one of the stations. A valve, capable of closing, to thereby create an air block in the supply line, is also disposed within the supply/exhaust branch. The motor blower blows air to move the carrier from one station to the other. The valve is activated, after deactivating the motor blower, when the carrier is detected at some predetermined location along the transport conduit. The valve closing creates an air block within the supply/exhaust branch which prohibits air from entering or exiting the conduit on the air block side of the carrier as the carrier moves along the transport conduit. The change in differential pressure across the carrier slows the carrier as it approaches its destination station.

REFERENCES:
patent: 3985316 (1976-10-01), Weissmuller
patent: 4032082 (1977-06-01), Weissmuller
patent: 4180354 (1979-12-01), Greene
patent: 4984939 (1991-01-01), Foreman et al.
patent: 5584613 (1996-12-01), Greene et al.

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