Hood style exhaust system construction

Details Hood style exhaust system construction Hood style exhaust system construction

1994-08-12

1995-10-10

Joyce, Harold

Ventilation

Workstation ventilator

Movable

454 67, B08B 1502

Patent

active

054566312

ABSTRACT:
An exhaust gas system for receiving and treating exhaust gases from different processing tanks including a hood supported by a moveable crane to direct exhaust gases from a selected tank to a selected exhaust duct. Exhaust gas then flows to a treatment site. A connector system is provided to connect the duct to the hood/crane combination. A flow rate sensor and air admission damper system is provided in association with the duct to sense the flow rate in the duct, to permit the addition of ambient air to the duct, by opening the damper, and thus assure a substantially constant flow rate to the treatment site.

REFERENCES:
patent: 928158 (1909-07-01), Smethurst
patent: 2761373 (1956-09-01), Owen
patent: 4286776 (1981-09-01), Laimer
patent: 4714010 (1987-12-01), Smart

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