Joint assembly for power and signal coupling between relatively rotatable structures

A joint assembly for allowing rotational movement between two structures, comprising:

• a first structure;
• a flexible circuit board having a plurality of electrical conductors extending through said flexible circuit board in a predetermined pattern, said flexible circuit board having a first surface facing a first direction and a second surface facing a second opposite direction, said flexible circuit board being constructed in an essentially circular shape defining a circular path, said flexible circuit board having a first end operatively connected to said first structure and a second end adapted to move in approximately said circular path such that said first surface of a portion of said flexible circuit board faces said second direction;
• and,
• a second structure operatively connected to said second end of said flexible circuit board adapted to rotate relative to said first structure such that said second end of said flexible member moves in said circular path.

A joint assembly for allowing relative rotational movement between two structures, comprising:

• a first structure having a first surface;
• a second structure having a second surface facing said first surface of said first structure, said first and second structures being adapted to rotate relative to each other;
• a first flexible transmitting member having a first surface facing a first direction and second surface facing a second opposite direction, said first flexible transmitting member being constructed in a first predefined shape defining a first predefined path, said first flexible transmitting member having a first end operatively connected to said first surface of said first structure, and a second end attached to said second surface of said second structure adapted to move in approximately said first predefined path such that said first surface of a portion of said first flexible transmitting member faces said second direction;
• and,
• a second flexible transmitting member having a first surface facing said second direction and a second surface facing said first direction, said second flexible transmitting member being constructed in a predefined shape defining a predefined path, said second flexible transmitting member having a first end operatively connected to said second surface of said second structure, and a second end attached to said first surface of said first structure adapted to move in approximately said predefined path such that said second surface of a portion of said flexible transmitting member faces said second direction;
• whereby when said first and second structures rotate relative to each other said first and second flexible transmitting members move in said predefined paths.