Telescoping exhaust tube assembly

Details Telescoping exhaust tube assembly Telescoping exhaust tube assembly

1997-07-03

1998-08-11

Joyce, Harold

Ventilation

Workstation ventilator

Movable

285302, F23J 1104

Patent

active

057919801

ABSTRACT:
An apparatus for exhausting engine combustion products or the like from an enclosed work space. The apparatus includes an extensible tube assembly adapted to be suspended in the enclosed work space with its upper end connected to an overhead conduit structure. The lower end of the assembly has a tailpipe adaptor for connection to an engine exhaust pipe. The assembly has two or three telescoping tubular sections formed of flexible, helical corrugated tubing, and these are movable between a retracted position and an extended position wherein the lower end may be moved to a variety of positions for connection to an engine exhaust pipe.

REFERENCES:
patent: 358674 (1887-03-01), Kendall
patent: 3975129 (1976-08-01), Kramer, Sr.
patent: 4038913 (1977-08-01), Earley
patent: 4086847 (1978-05-01), Overmyer
patent: 4804019 (1989-02-01), Kramer, Jr.
patent: 5162017 (1992-11-01), Nordin
patent: 5222906 (1993-06-01), Lundstrom
patent: 5482505 (1996-01-01), Hedlund

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