Rotary joint

Details Rotary joint Rotary joint

2005-09-27

2005-09-27

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S059000, C310S061000, C310S058000, C310S227000, C310S232000, C310S064000, C431S013000, C431S014000, C431S015000

Reexamination Certificate

active

06949847

ABSTRACT:
In a rotary joint A including an electric signal slip ring31for passing different electric signals between a stator1and a rotor6, for the purpose of stable transmission of electric signals in the electric signal slip ring31, stationary side electrode stacks38aand38bare provided individually by stacking each pair of axially adjacent two36bto36eof six ring-plate-shaped stationary side electrodes36ato36farranged concentrically with the axis of the stator1and aligned axially with each other together with one of stationary side insulating seats37aand37binterposed between the pair of axially faced stationary side electrodes, rotating side electrode stacks42ato42care provided individually by stacking each pair of axially adjacent two40ato40fof six ring-plate-shaped rotating side electrodes40ato40farranged concentrically with the axis of the rotor6and aligned axially with each other together with one of rotating side insulating seats41aand41cinterposed between the pair of axially faced rotating side electrodes, a group of the stationary side electrode stacks38aand38band another group of the rotating side electrode stacks42ato42care arranged between the axially distally situated stationary side electrodes36aand36fso that one from one group and one from the other axially alternate and all in each group are axially aligned, and a plurality of spherical bodies44are disposed between each of the distally situated stationary side electrodes36aand36fand the electrode of the rotating side electrode stack42aor42caxially faced to each said distally situated stationary side electrode36aor36fand between the faced electrodes of the axially adjacent stationary and rotating side electrode stacks to roll on the faced electrodes to pass electric signals between them.

REFERENCES:
patent: 4294500 (1981-10-01), Wilson
patent: 5575664 (1996-11-01), Sobhani
patent: 5951311 (1999-09-01), Kato et al.
patent: 6089875 (2000-07-01), Iwata et al.
patent: 6114783 (2000-09-01), Asao
patent: 6140722 (2000-10-01), Ballard et al.
patent: 5-138580 (1993-06-01), None
patent: 5-266957 (1993-10-01), None
patent: 10-094221 (1998-04-01), None
patent: 10-223346 (1998-08-01), None
patent: 2000-158376 (2000-06-01), None

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