F - Mech Eng,Light,Heat,Weapons – 23 – J
Patent
F - Mech Eng,Light,Heat,Weapons
23
J
F23J 11/02 (2006.01) B08B 15/00 (2006.01) F16L 3/015 (2006.01)
Patent
CA 2139953
The present invention relates to a device at exhaust-gas extraction hoses for extracting the exhausts from the exhaust pipe on a vehicle, whereby the ex- haust-gas extraction hose (1) is adapted to be retained at the vehicle (4) in anexhaust-gas extracting position (A) when the vehicle (4) is driven in the pre- mises (2), whereby the exhaust-gas extraction hose (1) is automatically relea- sable from its exhaust-gas extracting position (A) when the vehicle (4) is driven out of the premises (2), whereby the exhaust-gas extraction hose (1) includes a retaining device (8) which can be located on the vehicle (4) spaced apart from the exhaust pipe (3) and whereby an end portion (6) of the exhaust-gas extrac- tion hose (1) includes and/or cooperates with a tightening device (7) which can be tightened by bending and/or stretching the end portion (6) and which re- tains said end portion (6) in an exhaust-gas extracting position (A) when the re- taining device (8) is attached to the vehicle (4). For enabling this tightening de- vice (7) to permit connection of the end portion (6) to the exhaust pipe (3) without the risk of subjecting the exhaust pipe to side loads and/or to damage the side surfaces thereof and/or to permit support of the end portion (6) by ve-hicle parts instead of by the exhaust pipe (3) if said exhaust pipe is difficult to get at, the tightening device (7) comprises at least one spring means (10) whichcan be stretched in such a way that said spring means, when the retaining de- vice (8) is attached to the vehicle (4), affects the end portion (6) of the exhaust- gas extraction hose (1) in axial direction (B) or in substantially axial direction (B) such that the end portion (6), through a support means (11) mounted there- on and/or through its end edge (12), is held with pressure against the end edge (13) of the exhaust pipe (3) and/or against vehicle parts (14) situated adjacentsaid end edge (13) of the exhaust pipe (3).
Ab Ph. Nederman & Co.
Bereskin & Parr
LandOfFree
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