Rotative joint applicable in pneumatic air pressure control asse

Pipe joints or couplings – With support – Vehicle

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285190, 285276, 285321, 285330, F16L 300

Patent

active

054960754

ABSTRACT:
A rotative joint for a pneumatic air pressure control assembly having a body having at least one air outlet, an externally, threaded projection and a set nut arranged thereon to fix the assembly to a shaft end of a vehicle, and a kinematic shaft coaxially and internally disposed in the body and which is supported in a pair of bearings that enable relative motion between the shaft and the body. The shaft is positioned by a conventional set collar and elastic ring and is hollow for allowing pneumatic connection between an inlet defined in its external end and the air outlets of the body. The body further includes an internal air chamber aligned with the air outlets and disposed between a bottom wall of the body and the internal end of the kinematic shaft, and pneumatic sealing structure provided in the air chamber for assuring air pressurization through the air outlets. The pneumatic sealing is achieved by a sealing element obtained by a material with low friction properties and high resistance to the wear.

REFERENCES:
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patent: 2752197 (1956-06-01), Marco
patent: 2873810 (1959-02-01), Orton
patent: 3889983 (1975-06-01), Freize et al.
patent: 4296952 (1981-10-01), McCracken
patent: 4577892 (1986-03-01), Wrulich et al.
patent: 4817995 (1989-04-01), Deublen et al.
patent: 5165734 (1992-11-01), Smith
patent: 5303959 (1994-04-01), Medsker

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