Bizarre Patents
Behavior Modification Wristwatch
A wristwatch including a watch band and a watch body having an octagon shaped perimeter and being red in color and having the word STOP thereon to resemble a stop sign.
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| Number | Title | Issue Date |
| 4193781 | Head pressure control for heat reclaim refrigeration systems Condensing head pressure in a refrigeration system having its condenser exposed to low outside ambient temperatures is controlled to provide the minimum head pressure required for a given mode of operation. A hierarchy of operating modes, each with its as... | 03/18/1980 |
| 4191027 | Apparatus for cooling brine An apparatus for cooling brine comprising a plurality of refrigerating units connected to a slow-current tank for brine in such a manner said refirgerating units are associated with successive portions of brine in said slow-current tank from the downstrea... | 03/04/1980 |
| 4168719 | Gas control unit for a burner A gas control device for controlling the gas supply to the burner of a domestic hot water boiler has two main valves arranged in series in the gas flow path so as when closed to define a chamber between them. A second chamber is communicable with this cha... | 09/25/1979 |
| 4152902 | Control for refrigeration compressors A device for controlling a single variable capacity compressor, or multiple variable capacity compressors in either parallel flow or series flow chilling systems, senses temperature and load conditions and uses feedback in conjunction with synchronously a... | 05/08/1979 |
| 4141408 | Supplementary heat control for heat pump system A supplementary heat control for a heat pump system includes thermostatic sensors on the downstream side of the heat pump heating coil. The sensors upon sensing temperature differentials in the heated air stream which indicate the need for supplemental he... | 02/27/1979 |
| 4140067 | Furnace control system A furnace control system to control burner operation of a multifuel furnace to reduce primary fuel consumption of either oil or gas of the multifuel furnace. The system controls a primary fuel to initially kindle a secondary fuel when the fire reaches a s... | 02/20/1979 |
| 4114807 | Control system This system is of the power management type and is for controlling the operation of the various stages within a number of units such as heating, ventilation, and air conditioning units commonly referred to as HVAC units which may be of conventional design... | 09/19/1978 |
| 4085594 | Control system for cooling tower fans A control system for automatically controlling the operation of a plurality of fans for a cooling tower so that the minimum number of fans and the lowest speeds are used to provide the required cooling necessary at any one time. The fans are individually ... | 04/25/1978 |
| 4081691 | Controller for a multiple stage power device having interchangeable control units The present device incrementally adds or subtracts power units to and from a heating or cooling system and employs a major control board into which are plug-connected a plurality of minor control boards. The minor control boards have varying designs. Some... | 03/28/1978 |
| 4072866 | Proportional temperature control system incorporating a linear delay A proportional temperature control system using a linear time delay circuit provides an output voltage that is similar to the output voltage of a thermostat but delayed in time. The delay circuit is a linear rate time delay system that compares a called f... | 02/07/1978 |
| 4024378 | Electric heating system circuit for sequentially energizing a plurality of heating elements An electrical circuit for a heating system has a plurality of electrical resistance heating elements and a blower all controlled by a plurality of electro-thermally actuated relays. The circuit is arranged so that the heating elements are sequentially ene... | 05/17/1977 |
| 4019679 | Thermostatically controlled heating arrangement including a heat pump A heating arrangement, in which the circulating heat transfer medium for radiators is heated by condensation of a refrigerant in a heat pump, is controlled by relays in the energizing circuits of the several, independently driven pumping units of the comp... | 04/26/1977 |
| 4009825 | Control for forced air heating or cooling system An SCR motor speed controller in a forced air heating and/or cooling system has a relay-operated potentiometer with a variable voltage tap which controls the speed of the fan motor in accordance with the total demand from individual room thermostats. Each... | 03/01/1977 |
| 3999934 | Start up circuit In a thermostat control system including means for modulating the fuel flow to a burner above a predetermined level necessary for combustion, the improvement comprising an ignition circuit adapted to provide a larger fuel flow initially to the burner incl... | 12/28/1976 |
| 3993120 | Space thermostat A space thermostat for controlling the two-stage operation of both heating and cooling apparatus includes two single-pole, double-throw mercury type switches operatively connected to a single bimetallic coil. One switch energizes stage one of the heating ... | 11/23/1976 |
| 3982552 | Thermal protection for dishwashing machine A dishwashing machine having a gas-fired heater is provided with a flue structure having wall portions common to the tank and wash chamber of the machine. While the machine is running liquid splashes against these wall portions and exchanges heat therewit... | 09/28/1976 |
| 3969069 | Burner systems for ovens and methods of operating such systems Burners of an oven are operated to satisfy heat loads changeable between a high load and substantially smaller loads. At least under the smaller loads the burners are cyclically controlled in a cycle of time periods T-1 and T-2. During the periods T-1 the... | 07/13/1976 |
| 3964466 | Parallel fluid heating system A parallel water heating system having a plurality of water heaters supplying heated water to a plurality of water consuming loads. The water consuming outlet conduit from each of the water heaters includes a temperature responsive control valve that cont... | 06/22/1976 |
| 3935855 | Air heater, especially for connection to a central heating system Gas fired air heater for a central heating system comprising a heat exchanger in which are arranged a series of parallel rows of vertical heat exchange tubes, the lower ends of which are connected to a joint burner compartment and the upper ends of which ... | 02/03/1976 |
