US PATENT SUBCLASS 343 / 839
.~.~ Reflector and active antenna relatively movable


Current as of: June, 1999
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343 /   HD   COMMUNICATIONS: RADIO WAVE ANTENNAS

700 R  DF  ANTENNAS {58}
834  DF  .~ Antenna with parasitic reflector {4}
839.~.~ Reflector and active antenna relatively movable


DEFINITION

Classification: 343/839

(under subclass 834) Subject matter wherein means are provided permitting relative movement or adjustment between the reflector or a part thereof and the active antenna or a part thereof under operative conditions.

(1) Note. Where means is provided for moving the active

antenna and reflector relative to each other, as a handle, motor, gearing or other means for transmitting motion, to change the directive pattern of the antenna for scanning, sweeping or orienting in addition to the means permitting such motion, classification is not here but in subclass 761, above. However, where means are provided for moving the active antenna relative to the reflector, in addition to mere means permitting such motion, for purposes other than those recited in subclass 761, classification is in this subclass (839) as opposed to subclass 761.

(2) Note. Where an antenna and reflector are claimed with means to fold or collapse either or both when not in operation, classification is not herein but in subclass 834, above.

SEE OR SEARCH THIS CLASS, SUBCLASS:

361, for directive antennas having a reflector together with means for moving the active antenna and reflector relative to one another for scanning, sweeping or orienting. See also (1) Note, above.

880+, for antennas or reflectors with adjustable or collapsible supports, and particularly subclass 882 for antennas or reflectors with a pivoted or rotatable support for the antenna or reflector. 915, for reflectors, per se, which are collapsible, foldable or adjustable.