Conveyors: power-driven – With means to facilitate working – treating – or inspecting... – Condition responsive control of conveyor or station apparatus
Patent
1979-12-03
1985-03-12
Valenza, Joseph E.
Conveyors: power-driven
With means to facilitate working, treating, or inspecting...
Condition responsive control of conveyor or station apparatus
198472, B65G 4300
Patent
active
045039640
ABSTRACT:
Sample handling apparatus for circulating one or more sample holders along a rectilinear path in a sample holder storage compartment and past an operating station at which the holders may be removed from and then returned to the compartment. First and second parallel conveyors on opposite sides of the operating station drive the holders toward and away from the operating station. Lateral drivers engage the holders in longitudinal stop positions at opposite ends of the conveyors and drive them laterally between conveyors to lateral stop positions, one of the holders during lateral movement being driven into and away from an operative position at the operating station. A movable sample compartment divider between the conveyors is indexed in synchronism with the lateral drivers to engage and stabilize the sample holder at the operating station. Circulation of the holders is monitored by proximity switches at the longitudinal stop positions, limit switches at the lateral stop positions, intermediate switches in each lateral path between conveyors, and an indexing switch actuated by the movable divider.
REFERENCES:
patent: 3544272 (1970-12-01), Vaills
patent: 3859528 (1975-01-01), Luitwieler et al.
patent: 3871511 (1975-03-01), Wentz et al.
patent: 4001585 (1977-01-01), Coutarel
patent: 4040533 (1977-08-01), De Boer et al.
Kampf Richard S.
Winn Richard W.
Beckman Instruments Inc.
Meads R. R.
Shewmaker J. R.
Steinmeyer R. J.
Valenza Joseph E.
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