US PATENT SUBCLASS 335 / 288
.~.~ Rotary-type magnetic chuck (permanent or electromagnet type)

Current as of: June, 1999
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335 /   HD   ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS

209  DF  MAGNETS AND ELECTROMAGNETS {10}
285  DF  .~ Work or object holding type {4}
288.~.~ Rotary-type magnetic chuck (permanent or electromagnet type)

DEFINITION

Classification: 335/288

(under subclass 285) Subject matter wherein the holding magnet is a magnetic chuck or work-holding type which can be rotated while holding the workpiece.

(1) Note. The rotary type magnetic chuck may include permanent magnets or electromagnets.

SEE OR SEARCH CLASS

361, Electricity: Electrical Systems and Devices,

139+, for electric circuit for rotary type electromagnetic chucks.