Rotary coaxial assembly

In a miniature rotary coaxial assembly for electrically coupling two coaxial leads one to the other, a combination comprising:

• a stator cover and a rotary housing,
• an external pin and a smaller diameter internal pin rigidly fixed to the stator cover,
• stator insulation means for electrically insulating the external pin from the internal pin and for maintaining a coaxial relationship therebetween,
• stator adaptor means for electrically coupling the external lead of a first coaxial cable to the external pin and means for electrically coupling the internal lead of said first coaxial cable of the internal pin,
• an external socket and a smaller internal socket rigidly fixed to the rotary housing,
• rotor insulation means for electrically insulating the external socket from the internal socket and for maintaining a coaxial relationship therebetween,
• rotor adaptor means for electrically coupling the external lead of a second coaxial cable to the external socket and means for electrically coupling the internal lead of said second coaxial cable to the internal socket,
• a first conductive band of elongated louvered contacts lining the external socket and electrically coupling said external socket to the external lead,
• a second conductive band of elongated louvered contacts lining the internal socket and electrically coupling said internal socket to the internal pin,
• wherein the fit between the first conductive band and the external pin and between the second conductive band and the internal pin allows relative rotational motion therebetween and provides a low noise sliding electrical contact, whereby the rotary housing in the second coaxial cable and the external and internal sockets rotate freely as a unit with respect to the stator cover, the first coaxial cable, and the external and internal pins.