Exhaust gas discharge apparatus

Details Exhaust gas discharge apparatus Exhaust gas discharge apparatus

1994-06-15

1995-02-21

Joyce, Harold

Ventilation

Workstation ventilator

Movable

285177, 285240, 285272, F23J 1102

Patent

active

053911105

ABSTRACT:
The apparatus is a device for removing vehicle exhaust gases from a building. A sealed duct is installed under the floor of a building, and the duct includes a structure for supporting and guiding a hose dolly, a part of which travels within the duct. A flat seal is formed at the top of the duct at the level of the floor by flexible overlapping flaps which are raised and separated by the shape of the hose dolly as it moves along the sunken duct. An air cooled tail pipe coupling permits a hose connection between the hose dolly and a vehicle tail pipe without damage to the hose.

REFERENCES:
patent: 3057646 (1962-10-01), Brumagim
patent: 3517952 (1970-06-01), McCracken
patent: 4233889 (1980-11-01), Nederman
patent: 4660465 (1987-04-01), Jentzsch et al.
patent: 4724751 (1988-02-01), Jentzsch et al.
patent: 4762054 (1988-08-01), Melville et al.
patent: 5096230 (1992-11-01), Pausch et al.

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