US PATENT SUBCLASS 126 / 652
.~.~.~ Surrounded by transparent enclosure

Current as of: June, 1999
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126 /   HD   STOVES AND FURNACES

569  DF  SOLAR HEAT COLLECTOR {18}
634  DF  .~ With means to convey fluent medium through collector {7}
651  DF  .~.~ Conduit absorber structure {9}
652.~.~.~ Surrounded by transparent enclosure {5}
653  DF  .~.~.~.~> Sealed chamber between enclosure and absorber contains vacuum promoter (e.g., getter)
654  DF  .~.~.~.~> Sealed chamber between enclosure and absorber contains gas for promoting heat transfer
655  DF  .~.~.~.~> Plurality of conduit absorbers
656  DF  .~.~.~.~> Axis of conduit is curved (e.g., helical or serpentine)
657  DF  .~.~.~.~> With reflector

DEFINITION

Classification: 126/652

Surrounded by transparent enclosure:

(under subclass 651) Apparatus having a transparent means which completely envelops, in spaced relation to, and extends along an axial length of the fluent confining means.