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![[Search a list of Patent Appplications for class 126]](../as.gif) Class 126 | STOVES AND FURNACES |
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![[List of Patents for class 126 subclass 561]](../ps.gif) | 561 | SOLAR HEAT COLLECTOR FOR POND OR POOL |
| | 562 |  Including auxiliary source for adding heat to pool |
| | 563 | Remotely located from pool |
| | 564 | Within pool water |
| | 565 | On pool water surface |
| | 567 | With means to extract heat from pond liquid |
| | 568 | In contact with pond liquid |
| | 569 | SOLAR HEAT COLLECTOR |
| | 570 | Having external damage preventer |
| | 572 | With control means energized in response to actuator stimulated by condition sensor |
| | 573 |  Including sun position tracking sensor |
| | 574 |  With computer |
| | 575 | With timer |
| | 576 | With motor |
| | 578 | Electronic sensor |
| | 579 | Fluid expansion sensor |
| | 581 | Solid expansion sensor |
| | 582 | Phase change sensor |
| | 583 | Of fluent medium |
| | 584 | Pressure responsive |
| | 585 | Temperature responsive |
| | 586 |  Set point control |
| | 587 | Differential temperature control |
| | 588 | Freezing prevention |
| | 589 | Overheating prevention |
| | 590 | Fluid level responsive |
| | 591 | Of fluid flow |
| | 593 | Of collector |
| | 600 | With means to reposition solar collector for optimum radiation exposure |
| | 609 | With auxiliary heat source for fluent medium |
| | 610 | In a tank |
| | 611 | In a heat exchanger |
| | 612 | In the collector |
| | 613 | Heat pump |
| | 614 | Fireplace |
| | 615 | Water heater |
| | 616 | Hot air furnace |
| | 617 | With heat storage mass |
| | 621 | Solar collector forms part of building roof |
| | 623 | Solar collector supported on existing roof structure |
| | 624 | Rollable or foldable collector unit of nonrigid material |
| | 627 | Foldable collector unit of rigid material |
| | 628 | Including means to utilize fluent medium from collector to heat interior of building |
| | 629 | With device to circulate air from room of building through collector |
| | 633 | With fluent medium passage in floor or wall of room |
| | 634 | With means to convey fluent medium through collector |
| | 635 | Having evaporator and condenser sections (e.g., heat pipe) |
| | 638 | Thermosyphonic fluid circulation |
| | 640 | With storage tank for fluent medium |
| | 643 | With heat exchanger |
| | 646 | Pump |
| | 648 | With radiation trap |
| | 651 | Conduit absorber structure |
| | 652 | Surrounded by transparent enclosure |
| | 653 | Sealed chamber between enclosure and absorber contains vacuum promoter (e.g., getter) |
| | 654 | Sealed chamber between enclosure and absorber contains gas for promoting heat transfer |
| | 655 | Plurality of conduit absorbers |
| | 656 | Axis of conduit is curved (e.g., helical or serpentine) |
| | 657 | With reflector |
| | 658 | Having heat-absorbing fin or plate |
| | 659 | With fastener to secure fin to conduit |
| | 660 | Plate integral with conduit |
| | 661 | Plate surface with conduit secured thereto |
| | 662 | Conduit positioned in a groove in the plate |
| | 663 | Plural conduits |
| | 666 | Rectangular metallic conduit |
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