Duct swivel joint

Details Duct swivel joint Duct swivel joint

1977-08-10

1978-12-19

Wolk, Morris O.

Distillation: apparatus

Apparatus

Elements

105254, 141311R, 285 9R, 285 70, 285184, C10B 2706, C10B 3300, F16L 2712

Patent

active

041304632

ABSTRACT:
Apparatus for connecting two otherwise coupled railroad vehicles in gaseous flow communication comprises first and second ducts each mounted respectively at one end to one of the railroad vehicles, first and second coupling ducts each mounted respectively at an opposite open end of the first and second ducts to pivot about a vertical axis with one end enclosed in its respective duct and with a second end extending out from its respective duct, first and second frame members each mounted respectively at the second end of the first and second duct and having a mating surface circumferentially surrounding the second end, and first and second biasing means to extend between the respective pair of duct and coupling duct to urge the second end away from its duct and maintain the respective mating surfaces in abutting and sliding engagement one with the other.

REFERENCES:
patent: 1019777 (1912-03-01), Fowler
patent: 2124474 (1938-07-01), Scholtes
patent: 3634904 (1972-01-01), Larsen
patent: 3843461 (1974-10-01), Allen

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