Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Magnet structure or material
Reexamination Certificate
2005-10-04
2005-10-04
Barrera, Ramon M. (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Magnet structure or material
C040S427000, C040S429000, C040S430000
Reexamination Certificate
active
06952151
ABSTRACT:
An intriguing and educational display structure (1) appears to be spinning upon itself without any apparent drive mechanism, power supply or bearing. The structure comprises two concentric hollow spheres (3, 5) spaced apart by a transparent fluid (6). The outer sphere is totally transparent, immobile, and may rest on a tripod (2) or other type of support. The inner sphere may be partially transparent or translucent and carries over its surface, a design such as a map of the world (7). The inner sphere rotates within, and independently from, the first outer one. The internal, that is self-contained, drive mechanism uses either a conventional electrical motor (8) with its own field winding and commutator, or one made of a rotor comprising a cross-array of electromagnets (AC, BD) that interact with an ambient magnetic field such as the earth magnetic field. The power supply comes preferably from a photovoltaic collector (13) mounted within the inner sphere or from a receiver (27) of RF waves or other EM radiation.
REFERENCES:
patent: 56016111 (1981-02-01), None
Barrera Ramon M.
Charmasson & Buchaca & Leach, LLP
LandOfFree
Frictionless self-powered moving display does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Frictionless self-powered moving display, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frictionless self-powered moving display will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3449721