Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
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| Number | Title | Issue Date |
| 5775581 | Dual heat source heating system A heating system for heating a building with at least a first zone and a second to be heated. The heating system includes a first heating source and a second heating source. The heating system alternates between two modes of operation. In the first mode, ... | 07/07/1998 |
| 4604991 | Hot water preheater system A secondary heating source is used to preheat the water supplied to a conventional hot water tank. Three two-position valves permit the water from the water supply line to be supplied directly to the hot water tank during part of the year (such as the win... | 08/12/1986 |
| 4416222 | Hot water heater circuitry Dual flow circuitry is utilized to transport fluid held in a tank through a heating means by providing means for carrying both inflow and outflow streams and means for depositing the inflowing stream at a predetermined level in the tank while utilizing on... | 11/22/1983 |
| 4388916 | Steam generation apparatus A steam generation apparatus includes a primary source of hot water supplied to an enclosed hot water receptacle maintained at a pressure of approximately 300 psi. Supply and return lines pump the hot water in a recirculating manner through a serially con... | 06/21/1983 |
| 4300536 | Auxiliary hot water boiler with solar heater and heat exchange system An auxiliary hot water boiler and heat exchange system including a solar heater and adapted for use with a conventional, domestic closed loop hot water heating system and a conventional, domestic hot water heater. A first heat exchanger connected with a s... | 11/17/1981 |
| 4175698 | Method and apparatus for conservation of energy in a hot water heating system A very well heat insulated water storage or accumulator tank of relatively large capacity as compared to the capacity of the hot water heating unit is interposed between the unit and the radiator system and is interconnected with the unit. Heated water fr... | 11/27/1979 |
| 4155506 | Method and apparatus for conservation of energy in a hot water heating system A very well heat insulated water storage or accumulator tank of relatively large capacity as compared to the capacity of the hot water heating unit is interposed between the unit and the radiator system and is interconnected with the unit. Heated water fr... | 05/22/1979 |
| 4131231 | Fireplace heating system A heating system for heating a confined area with an open-hearth wood-burning fireplace. A fireplace jacket is provided which comprises a multi-chambered double-walled arrangement or a grate member. Log supporting portions of the jacket slant upward sligh... | 12/26/1978 |
| 4037779 | Heating system having high-low temperature limit controlled auxiliary boiler A standard hot water heating system is improved by adding a high-low temperature limit controlled auxiliary boiler. The auxiliary boiler is smaller than the main boiler and the burner for the auxiliary boiler is, of course, smaller than the burner for the... | 07/26/1977 |
| 4011989 | Metal building with integrated hot water heating system A metal building with an integrated hot water heating system includes a heater for heating water, pipes connected between the heater and heating grids in the floor of the building and the structural columns and beams of the frame of the building for circu... | 03/15/1977 |
| 3994281 | Heat generator of the combustion product condensation type and process for heating a heat-carrying fluid A heat generator of the type condensing the combustion products of a liquid or gaseous hydrogen fuel suitable for the heating of a heat-bearing fluid, including a tank containing at the top a zone of direct contact between the heat-bearing fluid and the c... | 11/30/1976 |
| 3958755 | Hydro-thermo fireplace and heating system therefor A fireplace jacket assembly and heating system associated therewith. A fireplace jacket assembly including water chambers on five sides of an open wood-burning fireplace having means for providing water communication and circulation therebetween is placed... | 05/25/1976 |
