Patents by Inventor Jatin C. Khanpara
Jatin C. Khanpara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6915841Abstract: A room air conditioner is provided which includes a compressor, a condenser coil, an evaporator coil, a wall positioned between the condenser coil and the evaporator coil, a chassis for supporting said compressor, condenser coil and wall, with the evaporator coil being secured to and supported by the wall, and at least a portion of the evaporator coil extending forwardly of a front edge of the chassis. The chassis is preferably formed of metal while the wall is preferably formed at least partially of plastic, in an upper and a lower mating piece. A plastic front panel may be positioned in front of the evaporator coil and secured to the wall. A series of air conditioners can be provided with a single sized chassis, but differing sized evaporator coils, to provide models with different cooling capacities utilizing a single sized chassis, with smaller cooling capacity air conditioners having a smaller size than larger capacity air conditioners of the series.Type: GrantFiled: May 23, 2002Date of Patent: July 12, 2005Assignee: WhirlPool CorporationInventors: Timothy J. Campbell, Jatin C. Khanpara
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Publication number: 20030217834Abstract: A room air conditioner is provided which includes a compressor, a condenser coil, an evaporator coil, a wall positioned between the condenser coil and the evaporator coil, a chassis for supporting said compressor, condenser coil and wall, with the evaporator coil being secured to and supported by the wall, and at least a portion of the evaporator coil extending forwardly of a front edge of the chassis. The chassis is preferably formed of metal while the wall is preferably formed at least partially of plastic, in an upper and a lower mating piece. A plastic front panel may be positioned in front of the evaporator coil and secured to the wall. A series of air conditioners can be provided with a single sized chassis, but differing sized evaporator coils, to provide models with different cooling capacities utilizing a single sized chassis, with smaller cooling capacity air conditioners having a smaller size than larger capacity air conditioners of the series.Type: ApplicationFiled: May 23, 2002Publication date: November 27, 2003Inventors: Timothy J. Campbell, Jatin C. Khanpara
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Patent number: 5918474Abstract: A refrigeration appliance and control system for efficiently operating the evaporator and condenser fan motors of the refrigeration appliance to reduce the total energy consumed by the appliance are disclosed. The control system operates to turn the evaporator fan motor on only after the evaporator has cooled to its operating temperature to avoid premature and inefficient use of the evaporator fan motor. The control system also permits the evaporator fan motor to continue running after the compressor is turned off to utilize the residual cooling capacity of the evaporator. In an embodiment, a secondary control system also operates to turn a condenser fan motor on only after the condenser reaches its operating temperature and operates to turn the condenser fan motor off only after the compressor is turned off and the condenser cools to a shutoff temperature below its operating temperature.Type: GrantFiled: July 15, 1997Date of Patent: July 6, 1999Assignee: Whirlpool CorporationInventors: Jatin C. Khanpara, Ernest C. Pickles
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Patent number: 5465591Abstract: A refrigeration appliance having at least two refrigeration compartments, each compartment having its own access door, is provided wherein there is a first evaporator for the first compartment, the first evaporator operating at a first pressure level and a second evaporator for the second compartment, the second evaporator operating at a pressure level higher than the first pressure level. There is a single condenser, a single compressor, a refrigerant circuit having a series of conduits with different flow control capabilities for providing a flow of refrigerant sequentially, that is, not simultaneously, to the first and second evaporators, the condenser and compressor, and various valves in the refrigerant circuit for directing refrigerant to a selected one of the evaporators from the condenser and for preventing a flow of refrigerant into the first evaporator when refrigerant is being directed into the second evaporator to cool the second compartment.Type: GrantFiled: June 21, 1993Date of Patent: November 14, 1995Assignee: Whirlpool CorporationInventors: Nihat O. Cur, Steven J. Kuehl, Jatin C. Khanpara, Douglas D. LeClear, James R. Peterson
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Patent number: 5375428Abstract: A refrigeration appliance is provided having at least two refrigeration compartments, each compartment having its own access door. The appliance includes a single evaporator located in a plenum which is selectively in communication with each of the compartments, a single compressor, preferably run by a variable speed motor, and a refrigerant circuit including a series of conduits for providing a flow of refrigerant to the evaporator and compressor. A control determines which of the compartments is demanding cooling and operates the refrigeration device until the detected demand for cooling has been satisfied for the particular compartment. Prior to terminating the operation of the refrigeration device, the control determines if the second compartment is demanding cooling or was within a predetermined temperature range prior to demanding cooling. If either condition exists, the refrigeration device is switched to the second compartment until the demand for cooling therein has been satisfied.Type: GrantFiled: February 4, 1994Date of Patent: December 27, 1994Assignee: Whirlpool CorporationInventors: Douglas D. LeClear, Kenneth P. Chen, Scott A. Thiele, Nihat O. Cur, Jatin C. Khanpara, Steven J. Kuehl
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Patent number: 5272884Abstract: A method and apparatus for sequentially operating a refrigeration system with multiple evaporators is provided in which only one evaporator is operated at a time and is run until a detected demand for cooling associated with that evaporator is satisfied, or until a predetermined time period has elapsed which corresponds to the normal run time for that evaporator. If the run time expires prior to the demand for cooling being satisfied, and if demand for cooling by another one of the evaporators is present, then operation of the first evaporator is terminated and the other evaporator is operated. Efficiency enhancements are provided such as prematurely initiating operation of a second evaporator at the conclusion of operation of a first evaporator if it appears that a demand for cooling by the second evaporator will occur within a short period of time following termination of operation of the first evaporator.Type: GrantFiled: October 15, 1992Date of Patent: December 28, 1993Assignee: Whirlpool CorporationInventors: Nihat O. Cur, Steven J. Kuehl, Jatin C. Khanpara, Douglas D. LeClear
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Patent number: 5183704Abstract: Lamellar-structured highly microporous silicate compositions are provided which can be used as insulative articles and insulation material. The silicate is in the form of lamellae selected from the group consisting of mica and vermiculite. The silicate lamellae form the microporous structure, by forming the pore walls with the lamellae. Processes are described which prepare these compositions by removing the water from flocculated or unflocculated aqueous dispersions of chemically delaminated silicates while the arrangement of the lamellae in the dispersion is largely preserved, resulting in the highly microporous lamellar structure.Type: GrantFiled: February 11, 1991Date of Patent: February 2, 1993Assignee: Armstrong World Industries, Inc.Inventors: Walter J. Bohrn, Kimberly S. Diffenbaugh, Shelly N. Garman, Jatin C. Khanpara