Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Reexamination Certificate
2006-04-18
2008-05-13
Masih, Karen (Department: 2837)
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
C318S568220, C318S567000, C318S569000
Reexamination Certificate
active
07372230
ABSTRACT:
An off-axis rotary joint (20) for selectively enabling communication of a signal (i.e., electrical and/or optical) between a housing (21) mounted for rotation about an axis (y-y) relative to a hollow shaft assembly (22) at all permissible relative angular displacements (e.g., 0°, 180°, 360°, 540°, 720°, etc.) between the housing and shaft assembly, broadly includes: a first conductor (23) having an first end mounted on the second member and having a second end mounted on the first member, the first conductor being adapted to convey a signal between its ends; a first motor (24) operatively arranged to selectively rotate the first conductor first end through a desired angular displacement relative to the second member; a second conductor (25) having an first end mounted on the second member and having a second end mounted on the first member, the second conductor being adapted to convey a signal between its ends; a second motor (26) operatively arranged to selectively rotate the second conductor second end through a desired angular displacement relative to the first second member; an encoder (28) for monitoring the angular displacement of the first member relative to the second member; a first divider/combiner (29) communicating with the second end of each of the conductors; a second divider/combiner (30); a first connector (31) mounted on the first member for selectively communicating the first and second divider/combiners through the first conductor; a second connector (32) mounted on the first member for selectively communicating the first and second divider/combiners through the second conductor; and a controller (33) for selectively operating the first and second motors and the first and second connectors; whereby a signal may be conveyed though the joint at all permissible angular displacements of the housing relative to the shaft assembly.
REFERENCES:
patent: 2006/0086564 (2006-04-01), Kostun et al.
Focal Technologies Corporation
Masih Karen
Phillips Lytle LLP
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