Magnetic actuator for direct generation of a rotary...

Details Magnetic actuator for direct generation of a rotary... Magnetic actuator for direct generation of a rotary...

2007-07-31

2009-02-24

Barrera, Ramon M (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

C335S234000

Reexamination Certificate

active

07495536

ABSTRACT:
A magnetic actuator for the direct generation of a rotary actuation of a shaft (1) with currentless stop position fixation is proposed, which comprises at least one permanent magnetic anchor (2) configured as an annular segment and torque-proof connected to the shaft (1) and at least two electromagnet systems (7, 8), which each have a coil (5, 6) wound around a ferromagnetic core (3, 4), wherein the at least two electromagnet systems (7, 8) and the at least one permanent magnetic anchor (2) are arranged in a non-magnetic pole conduit (10) or on a circular path configured as an annular segment or as a ring co-axially with respect to the rotating shaft (1), the at least one permanent magnetic anchor (2) is arranged between two electromagnet systems (7, 8), and the length of the circular segment between the electromagnet systems (7, 8) is greater than the length of the anchor (2) arranged between the electromagnet systems (7, 8) in peripheral direction in order to make possible a motion of the anchor (2) along a circular path segment between the electromagnet systems (7, 8) corresponding to their current feed.

REFERENCES:
patent: 196 03 306 (1997-07-01), None
patent: 196 34 764 (1998-03-01), None
patent: 202 03 718 (2002-08-01), None
patent: 102 07 828 (2003-09-01), None
patent: 2003227456 (2003-08-01), None

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