Ventilation – Workstation ventilator – Movable
Patent
1991-05-22
1992-11-10
Joyce, Harold
Ventilation
Workstation ventilator
Movable
104 52, F23J 1100
Patent
active
051620170
ABSTRACT:
A device for connecting an exhaust suction hose (1) to the exhaust pipe (3) of a vehicle (4) in such a way that the exhaust fumes of the vehicle (4) are carried away via the exhaust suction hose (1). The exhaust suction hose (1) being disposed at the top of a workshop or like premises and a dependent part of the exhaust suction pipe (1) being connectable to the exhaust pipe (3) of a vehicle (4) in the premises. The exhaust suction pipe (1) being kept connected to the exhaust pipe (3) while the vehicle is driven about in the premises, and the exhaust suction hose (1) being automatically released from the exhaust pipe (3) when the vehicle (4) is driven out of the premises. To void damage to the exhaust pipe, the exhaust suction hose (1) constitutes and/or cooperates with a tensioning device (12) which can be tensioned by bending and/or stretching an end portion (11) of the exhaust suction hose (1) and which retains the end portion (11) to the exhaust pipe (3) by being tensioned when the exhaust suction hose (1) is attached to the vehicle (4) via a fastening device (10) and when the end portion (11) is passed onto the exhaust pipe (3).
REFERENCES:
patent: 2733668 (1956-02-01), Pfetzing
patent: 2772625 (1956-12-01), Clark, Jr.
patent: 4660465 (1987-04-01), Jentzsch et al.
AB PH, Nederman & Co.
Joyce Harold
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