Bizarre Patents
Decorative Jeweled Wheel Cover
An improved wheel is provided wherein decorative items such as gem stones are embedded in either the wheel surface, a special mounting section attached to the wheel surface, or to a spoke strap that wraps around each spoke and positions embedded gem stones on the outside surface of the spoke.
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| Number | Title | Issue Date |
| 7320110 | Multiple language user interface for thermal comfort controller A multiple language user interface system for a thermal comfort controller. The user interface system has a central processing unit coupled to a memory, a language selector and a touch sensitive display unit. The memory can store at least one user interface object a... | 01/15/2008 |
| 7296426 | Interactive control system for an HVAC system An interactive system for controlling the operation of an HVAC system is provide that comprises a thermostat for initiating the operation of the HVAC system in either a full capacity mode of operation or at least one reduced capacity mode of operation, and a control... | 11/20/2007 |
| 7228508 | Fail-safe thermal sensor apparatus and method A fail-safe thermal sensor is implemented in an integrated circuit such as a microprocessor. The fail-safe thermal sensor monitors the temperature of the integrated circuit and halt logic halts operation of the integrated circuit in response to the fail-safe thermal... | 06/05/2007 |
| 7083109 | Thermostat having modulated and non-modulated provisions A thermostat providing modulated or analog control of valves or dampers of an air management system. This permits operating a single cooling or heating stage with partially open valves or dampers as needed, since one full stage that is either fully on or off may not... | 08/01/2006 |
| 6975047 | Temperature-based cooling device controller apparatus and method A temperature-based cooling device controller is implemented in an integrated circuit such as a microprocessor. The temperature-based cooling device controller includes a register to store a threshold temperature value, a thermal sensor, and clock adjustment logic t... | 12/13/2005 |
| 6966192 | Tandem compressors with discharge valve on connecting lines A refrigerant cycle is disclosed having a number of compressors operating in tandem and supplying a compressed refrigerant to a refrigerant system. Discharge lines communicate a compressed refrigerant to a central discharge line for receiving flow from all tandem co... | 11/22/2005 |
| 6951116 | Air conditioner and method for controlling electronic expansion valve of air conditioner Disclosed are an air conditioner in which one or more compressors are operated so that the refrigerant compression capacity of the operating compressor(s) is variably changed in accordance with a cooling or heating load for cooling or heating air in a room, and a me... | 10/04/2005 |
| 6871505 | Compressor-controlling device and method for air conditioner comprising a plurality of compressors Disclosed are compressor-controlling device and method for an air conditioner comprising a plurality of compressors. In case several compressors selected from the plural compressors are stopped for a long period of time according to cooling or heating load, the refr... | 03/29/2005 |
| 6807816 | Air conditioning system with two compressors and method for operating the same Disclosed are an air conditioning system with two compressors so as to shorten standby time for re-operating a stopped compressor and variably change the compression capacity of a refrigerant according to cooling load, and a method for operating the air conditioning... | 10/26/2004 |
| 6758208 | Flexible gas-fired heat exchanger system A compact, highly flexible and efficient, multi-positionable, multi-dimensional and multi-stage gas-fired heat exchanger system as described. The system is connectable in a forced air duct regardless of the angular position and size of the duct. The heat exchanger c... | 07/06/2004 |
| 6722576 | Method for operating air conditioner in warming mode Disclosed is a method for operating an air conditioner in a warming mode, including the 100% operation performing step of operating/stopping all of compressors, the load determining step of determining a warming load to be eliminated after completion of the 100% ope... | 04/20/2004 |
| 6609904 | Gas furnace control arrangement A gas furnace control arrangement includes a control unit control unit and an operating unit adapted to control the control unit, the control unit having a valve seat holding a set of solenoid valves, the solenoid valves including a main valve for fuel ga... | 08/26/2003 |
| 6540148 | Method and apparatus for sequencing multistage systems of known relative capacities Disclosed is a method and apparatus for controlling multistage systems where the relative capacities (process gains) of each stage are known. The method uses a split-range control concept in order to control multiple stages with a single feedback controll... | 04/01/2003 |
| 6474085 | Refrigerating apparatus A refrigerating apparatus comprising a refrigerating cycle having compressors, a condenser, a liquid receiver, expansion valves and evaporators; and a suction pressure sensor for detecting a pressure on suction sides of the compressors; wherein when the s... | 11/05/2002 |
| 6370894 | Method and apparatus for using single-stage thermostat to control two-stage cooling system When a single-stage thermostat is appropriately connected to a two-stage cooling system, a microprocessor control activates low and high stages of cooling based on preset parameters. The cooling load requirement is determined and compared to the maximum l... | 04/16/2002 |
| 6233954 | Method for controlling the operation of a compression system having a plurality of compressors A fluid compression system includes a plurality of compressors, each compressor having a local controller for controlling operation thereof and a sensor for sensing the pressure of compressed fluid discharged therefrom. A method for controlling operation ... | 05/22/2001 |
| 6185946 | System for sequencing chillers in a loop cooling plant and other systems that employ all variable-speed units Methods of sequencing parallel units in HVAC systems are described to improve overall system operating efficiency. The improved method is applicable for sequencing parallel centrifugal pumps in a variable flow hydronic system, parallel fans in a variable ... | 02/13/2001 |
| 6058729 | Method of optimizing cooling capacity, energy efficiency and reliability of a refrigeration system during temperature pull down A unique method of operating a refrigeration system for rapidly pulling down a refrigerated container temperature includes the use and algorithm for operating several system components. The refrigeration system is preferably provided with a suction modula... | 05/09/2000 |
| 6047557 | Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor A control for a refrigeration system serviced by a special pulse width modulated compressor coupled to a condenser and evaporator. The system can be of the distributed type wherein the condenser and compressor may be coupled to service a group of adjacent... | 04/11/2000 |
| 5701750 | Zone demand controlled dual heat pump system and controller therefor A thermal zone demand controlled dual cascade arranged heat pump system and system controller for building spaces, having first and second heat pumps and having an air circulation system for circulating air to and from said thermal zones and including a c... | 12/30/1997 |
| 5626027 | Capacity control for multi-stage compressors In a positive displacement compressor having a plurality of banks, operation can be multi-staged or single staged. Single stage operation can be of a single bank or plural banks in parallel. Switchover between modes of operation is under the control of a ... | 05/06/1997 |
| 5577390 | Compressor for single or multi-stage operation In a positive displacement compressor having a plurality of banks, operation can be multi-staged or single staged. Single stage operation can be of a single bank or plural banks in parallel. Switch-over between modes of operation is under the control of a... | 11/26/1996 |
| 5572878 | Air conditioning apparatus and method of operation Two compressors are connected in tandem for an air conditioning system. A control board that includes a microcontroller controls the operation of the system in response to the energization of first and second stage terminals of a thermostat. The system in... | 11/12/1996 |
| 5327742 | Hierarchial control for discrete chiller units System and process are disclosed for the hierarchial control of a plurality of discrete chiller units each having individual dedicated controls. The system and process imposes limits on the amount of compression that can be demanded by the individual dedi... | 07/12/1994 |
| 5316073 | Twinning control A twinning controller or control circuit for use in an HVAC system is coupled between a system thermostat and at least two HVAC units coupled to a common duct. The HVAC units are heating, cooling or heating and cooling appliances such as heating furnaces,... | 05/31/1994 |
| 5265436 | Control apparatus for air-conditioners Multi-purpose indoor units and multi-purpose outdoor units are parallel-connected with each other by refrigerant pipes, and an operating capacity is obtained on the basis of the sum of the demanded capacities of the indoor units and on the basis of the co... | 11/30/1993 |
| 5222370 | Automatic chiller stopping sequence A control for a multiple chiller refrigeration system whereby a chiller can be stopped at a predetermined load in order that the remaining building load can be picked up by the remaining running chillers without exceeding set load capacities of the runnin... | 06/29/1993 |
| 5195329 | Automatic chiller plant balancing A method and control system for operating a chiller system having a lead compressor and a lag compressor in which the load on the compressors is balanced by limiting the % KW demand on the lag compressor from exceeding the 90 KW of the lead compressor whi... | 03/23/1993 |
| 5170636 | Heat exchanger A heat exchanger includes a rotary compressor having two compression pumps and a motor for driving the compressor pumps, a condenser connected to the rotary compressor, a regulator connected to the condenser and with an evaporator connected to the regulat... | 12/15/1992 |
| 5119884 | Multiple stage electronic temperature control for heating and cooling A control device for energizing and de-energizing temperature changing devices having a primary control unit and a secondary control unit is provided. The primary control unit includes means for sensing an external temperature and generating a signal (Ps)... | 06/09/1992 |
| 5094085 | Refrigerating cycle apparatus with a compressor having simultaneously driven two compressor means A refrigerating cycle apparatus has, in a sealed casing, a compressor including first and second compressor means driven simultaneously. A refrigerating cycle circuit is constituted by connecting this compressor, a condenser, a pressure-reducing device, a... | 03/10/1992 |
| 4903502 | Rate of change temperature control for transport refrigeration systems Methods and apparatus for controlling the load temperature of a transport refrigeration system to a selected set point temperature by operating modes which include a high capacity cooling mode and a lower capacity cooling mode. The rate of change of the l... | 02/27/1990 |
| 4812997 | Control apparatus for an air conditioning system A control apparatus for an air conditioning system has an outdoor unit with a compressor, a condenser and a plurality of motorized valves installed to a plurality of branch pipings. A plurality of indoor units having, a plurality of indoor thermoswitches,... | 03/14/1989 |
| 4756473 | Cooling method control system for electronic apparatus A cooling system for an electronic apparatus which cools the electronic apparatus using a plurality of cooling fans and controls the rotational speed of the cooling fans in accordance with the temperature of apparatus to be cooled or the temperature of th... | 07/12/1988 |
| 4735055 | Method of operating a transport refrigeration system having a six cylinder compressor A method of operating a transport refrigeration system having a six cylinder compressor and a prime mover operable at a selected one of low and high speeds, to control the temperature of a served space by cooling and hot gas heating modes. Below a set poi... | 04/05/1988 |
| 4703795 | Control system to delay the operation of a refrigeration heat pump apparatus after the operation of a furnace is terminated A multistage space thermostat control system for controlling a refrigeration heat pump and a furnace controls the heat pump from a first stage of a space thermostat and a furnace from a second stage with anticipation circuit means associated with said the... | 11/03/1987 |
| 4638767 | Heating system The invention provides a control system for a set up including a plurality of boilers, in which each boiler is associated with a control valve which permits or prevents flow through the boiler between common flow and return mains and in which each control... | 01/27/1987 |
| 4628700 | Temperature optimizer control apparatus and method Apparatus and method for controlling compressor operation in conjunction with sensing the lowest temperature operating evaporator coil, or area serviced thereby, of a commonly-piped cooling system. A thermoelectric sensor voltage output is compared with a... | 12/16/1986 |
| 4614089 | Controlled refrigeration system A controlled refrigeration system includes a plurality of refrigerant compressors fed from a common suction manifold (line). Each compressor is associated with a respective controller. The individual controllers are set to effect the cutting in of its ass... | 09/30/1986 |
| 4612776 | Method and apparatus for controlling capacity of a multiple-stage cooling system In one exemplar embodiment, method and apparatus for controlling capcity of a multiple-stage cooling system is disclosed which utilizes means for establishing a single predetermined cooling stage "cut-in" pressure and a single predetermined cooling stage ... | 09/23/1986 |