Bizarre Patents
A vest or belt is integrally formed with tubular, pet receiving passageways which extend around the wearer's body and terminate in pocket-like chambers for feeding and retrieval.
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| Number | Title | Issue Date |
| 6915958 | Linear proportional valve A valve assembly for automatically and proportionally controlling the flow of coolant fluid between an engine and a radiator for cooling the fluid heated by the engine in response to changes in the fluid temperature within a predetermined temperature range. The valv... | 07/12/2005 |
| 6742716 | Thermostat A thermostat comprises a valve and an electric valve actuator to move the valve against a valve seat. The thermostat comprises a wax motor responsive to temperature to move the valve away from the valve seat. ... | 06/01/2004 |
| 6695217 | Regulating valve A regulating valve for a heat-transferring medium has a valve member controllable primarily by an electrical actuating member, but in the event of failure of the electrical actuating member, a thermostatic actuating member, operating independently of the ... | 02/24/2004 |
| 6481229 | Refrigerating device The present invention provides means for selecting a direct drive type electrically driven expansion valve (Z). The present invention includes a compressor (121), an external heat exchanger (123), a direct drive type electrically driven expansion valve (Z... | 11/19/2002 |
| 6343746 | Motorized thermostatic device with backup thermostatic element A housing has a chamber comprising fluid accesses, at least one of which can be plugged by a plug; a reversible motor equipped with a rotary shaft is connected to the plug by a coupling involving a screw-nut system to move it in translation towards pluggi... | 02/05/2002 |
| 6290139 | Hydraulically actuated mixing valve A hot and cold water mixing valve to maintain the outlet water temperature at a preset level by using electronic sensors to actuate low voltage, pulse operated solenoid valves to regulate pressure in control passageways. The control passageway pressure di... | 09/18/2001 |
| 6264111 | Proportional-integral-derivative controller having adaptive control capability Apparatus for controlling at least one variable output parameter in response to a variable predetermined input parameter in a process system, such as a digital thermostat. The apparatus provides adaptive control of the output variable by utilizing a contr... | 07/24/2001 |
| 6223993 | Climate control device A climate control system is provided including a vacuum pump for generating a vacuum upon actuation. Also included is a thermostat for generating the activation signal upon a current temperature within the associated room being out of a predetermined rang... | 05/01/2001 |
| 5963458 | Digital controller for a cooling and heating plant having near-optimal global set point control strategy A DDC controller is disclosed which implements a control strategy that provides for near-optimal global set points, so that power consumption and therefore energy costs for operating a heating and/or cooling plant can be minimized. Tile controller can imp... | 10/05/1999 |
| 5934093 | Servo device for regulating a refrigerant into a compressor A servo device for regulating a refrigerant into a compressor comprises a low pressure regulator, a high pressure regulator, and a solenoid valve. The low pressure regulator is connected to an inlet of the compressor and the high pressure regulator is con... | 08/10/1999 |
| 5634590 | Direct digital control thermostat An electronic digital thermostat is disclosed which is capable of use in a pneumatically controlled temperature control system of the type which has a pneumatic supply line which extends to various components of the control system and wherein the control ... | 06/03/1997 |
| 5323961 | Apparatus for controlling unit ventilators A controller for unit ventilators which include processing means having associated memory that enables control schemes to be used. The controller is modular and compact in its construction, is easily installed in existing unit ventilators and provides not... | 06/28/1994 |
| 5207379 | Cascaded control apparatus for controlling unit ventilators A controller having two cascaded PID control loops in the control of unit ventilators of the type which have a heating coil, a fan, and a damper for admitting outside air into a room in which the unit ventilator is located. The controller utilizes the sen... | 05/04/1993 |
| 5114070 | Pneumatic direct digital controller A pneumatic direct digital control system comprising: an air inlet; an air outlet; a transducer for connecting the air inlet and the air outlet and controlling a flow of air therebetween; a power supply; a sensor; and a direct digital controller. The dire... | 05/19/1992 |
| 4848652 | Vehicle engine coolant system and method of making the same A vehicle engine coolant system and method of making the same are provided, the system having a valve construction comprising a housing provided with an inlet interconnected to the block of the internal combustion engine of the vehicle and an outlet inter... | 07/18/1989 |
| 4705212 | Method and apparatus for managing steam systems A steam system management method and apparatus includes a condensate collection reservoir with a pilot operated, pressure actuated dump valve that has a quick, snap action fully open/fully closed mode of operation. The pilot operation of the dump valve is... | 11/10/1987 |
| 4556169 | On-off thermostat based modulating air flow controller A system for providing modulated air flow control in response to an on-off thermostat having an on-off thermostat, a self-returning, slow moving motor connected to the thermostat for moving in a first direction when the thermostat is on and moving in a se... | 12/03/1985 |
| 4527583 | Electropneumatic transducer system A temperature compensation circuit is provided which can be used for span temperature compensation in an electropneumatic transducer system and which includes a constant current generator circuit coupled to a bridge of piezo resistances in a pressure tran... | 07/09/1985 |
| 4524906 | Temperature control valve and sensor/controller therefor A hot air modulating valve for mixing hot air with cold air flowing in a duct, the modulating valve having a torque motor operated pilot valve to position the modulator valve to maintain a predetermined temperature of the hot air-cold air mixture. The tem... | 06/25/1985 |
| 4506825 | Solenoid operated damper blades Solenoid motor means for operating a multiple blade damper device; said blades being pivotally mounted in a common housing; said housing being constructed to reside in an open ended duct boot that is part of the duct network for the distribution of the he... | 03/26/1985 |
| 4500034 | Electronic control arrangement for system powered HVAC terminal units The desirable features of self powered air distribution terminals and electronic controls are combined by providing an interface between the electronic controls and one or more self powered terminal units in an air distribution system. The electronic cont... | 02/19/1985 |
| 4456170 | Control valve A pressure valve for heating a pressure medium and maintaining its temperature constant, has a control slider provided with a throttle, a pilot valve influencing a position of the control slider and having a spring-loaded valve member and a valve seat, a ... | 06/26/1984 |
| 4440066 | Digital pneumatic modulator An improvement in facility management systems that allows an electronic control unit to be interfaced with a pneumatic cylinder unit. The digital pneumatic modulator of the improvement includes a solenoid valve controlled pneumatic input port, a solenoid ... | 04/03/1984 |
| 4436245 | Pneumatic control system, especially for vehicle heating systems A control system for controlling the operation of a heating or air conditioning system, especially for the passenger compartment of motor vehicles. The temperature in the compartment is maintained by an electronic controller which receives temperature-rel... | 03/13/1984 |
| 4401263 | Pneumatic relay controlled transducer construction An electrical current input to a pneumatic signal output transducer construction wherein the signal is substantially proportional to the current and is generated by a pneumatic relay of the construction that is controlled by an electrical current receivin... | 08/30/1983 |
| 4394958 | Air flow and condition responsive damper Apparatus for controlling the air flow from a register of a forced air heating system. The apparatus includes walls forming a housing or cover that is adapted to be fastened to and enclose an air outlet register. The walls also form an outlet opening, and... | 07/26/1983 |
| 4383641 | Electrically-controlled damper A novel fluid-flow control damper is disclosed. The damper comprises a freely pivotable closure situated in a fluid-flow conduit, such as an air duct. The closure is maintained in a closed position by a simple latching means, and may be maintained in an o... | 05/17/1983 |
| 4378199 | Variable speed drive The fan motor of a variable speed drive for a fan is positioned in response to thermostatic demand and a feedback signal responsive to the position of the variable speed drive. Changing thermostatic demand causes movement of the fan motor until an equilib... | 03/29/1983 |
| 4362268 | Air conditioning system for an automotive vehicle compartment An air conditioning system particularly mounted in a passenger compartment of an automotive vehicle according to the present invention can be fixed in the maximum heating operation mode to produce a maximum effect of the defrosting function by only pushin... | 12/07/1982 |
| 4352452 | Emergency controller for an air conditioning system of an automotive vehicle An emergency controller for an air conditioning system of an automotive vehicle which incorporates an electronic control circuit in the automatic temperature adjusting means to perform a proportional control over an air mixing door by the use of a vacuum ... | 10/05/1982 |
| 4339076 | Control system for automobile air conditioners A control system for an automobile air conditioner including an air blend door for adjusting the output of the air conditioner, a vacuum actuator including a hermetic chamber and a control member, the control member being connected to control the air blen... | 07/13/1982 |
| 4328855 | Method and apparatus for controlling automobile air conditioners A method and apparatus for controlling an automobile air conditioner wherein a deviation between the actual in-car temperature and a desired in-car temperature is periodically calculated to detect such various thermal disturbances as changes of the solar ... | 05/11/1982 |
| 4320870 | Temperature control systems A temperature control system for maintaining a selected location at a preselected temperature comprises a supply of heat transfer fluid, a first control for controlling the temperature of the heat transfer fluid, a heat exchanger for receiving the heat tr... | 03/23/1982 |
| 4313561 | Temperature control system and thermally responsive electro-vacuum relay therefor An electro-vacuum relay 10 is disclosed comprising a thermally responsive actuator 18 mounted on the lower end of a housing 14, 16 which defines a vent chamber 66. Upper and lower fluid ports 38, 40 are integrally molded into the housing and communicate w... | 02/02/1982 |
| 4262738 | Air conditioning apparatus for vehicle A plurality of movable dampers (23), (26), (31) are provided in an air flow duct (12) to control the temperature and air flow therethrough. A heater core (19) and/or air conditioner evaporator (18) are disposed in the duct (12). The dampers (23), (26), (3... | 04/21/1981 |
| 4261509 | Pneumatic switch control for pneumatic actuator in air conditioning control systems Heating, ventilating and air conditioning control systems commonly use pneumatic actuators. A digital logic control has first and second output ports applied to control the actuator through dual channels, including an air supply channel and an air exhaust... | 04/14/1981 |
| 4243173 | Pneumatic optimizer A system for controlling the starting time of a thermal conditioning system for air in an enclosed space includes a pneumatic temperature transmitter, a pressure chamber, bleed device, and a valve for selectively providing communications either between th... | 01/06/1981 |
| 4183397 | Vehicle air conditioning device An air conditioning device for an automobile vehicle includes the provision for automatic proportional control of the air conditioning function and also a priority function such as vehicle windscreen demisting or defrosting. Economy of pneumatic power is ... | 01/15/1980 |
| 4147205 | Vacuum actuated automatic temperature control system with actuator pressure signal feedback An automatic control system for regulating the temperature of the passenger compartment in automotive vehicles is disclosed of the type in which a vacuum operated actuator is utilized to control the position of a blend air door, the position of the blend ... | 04/03/1979 |
| 4095741 | Proportional electrical control system A control system for proportionally operating an actuator is disclosed having a condition responsive device comprising an element movable in response to a sensed condition and a sensing device for sensing the movement of the element, the actuating means b... | 06/20/1978 |
