William R. Schley - Rancho Santa Margarita CA, US Eric B. Chapman - Brea CA, US Dan Thanh Nguyen - Irvine CA, US Lawrence P. Flesch - Westminster CA, US Sandra Lynn Harper - Dana Point CA, US Curtis Edgar Stevens - Irvine CA, US
Assignee:
Parker-Hannifan Corporation - Cleveland OH
International Classification:
G01B 7/14 G01R 33/069 H01L 43/06
US Classification:
32420724, 3242072
Abstract:
A system and method for measuring the position of at least one field producing element (e. g. , a magnet) without a direct electrical or physical connection between the field producing element and one or more sensors. In one embodiment, the output from an array of sensors (e. g. , Hall Effect sensors) is curve fit using an algorithm having a characteristic bell curve (e. g. , curve fit tracking algorithm, center of gravity algorithm, etc. ) to determine at least one of an absolute or relative position associated with the field producing element and/or a property associated with the field producing element (e. g. , magnetic flux). Another embodiment is directed to detecting errors in one or more of the sensors and excluding the output of the faulty sensors in determining the position associated with the field producing element.
Apparatus And Method For Detecting Characteristics Of A Working Fluid
Chester D. Campbell - Rancho Santa Margarita CA Sandra L. Harper - Dana Point CA Virender Jain - Lake Forest CA Richard L. Kenyon - Irvine CA Alan Matthies - Milwaukee WI Roy M. Yabuki - Los Angeles CA
Assignee:
Parker-Hannifin Corporation - Cleveland OH
International Classification:
F25B 4902 G01D 2502
US Classification:
622283
Abstract:
A heat transfer system includes a high side pressure sensor in the form of a temperature dependent resistance in heat exchange with the system working fluid to locally heat the fluid in response to a control signal. Control means are provided for applying the control signal to the resistance and detecting a minimum thermal resistance between the thermistor and the working fluid.
Expansion Valve Control Element For Air Conditioning System
Chester D. Campbell - Rancho Santa Margarita CA Sandra L. Harper - Dana Point CA Virender Jain - Lake Forest CA Richard L. Kenyon - Irvine CA Alan Matthies - Milwaukee WI Roger G. Riefler - Brandon MS Roy M. Yabuki - Los Angeles CA Ashok Zopey - Anaheim Hills CA
Assignee:
Parker-Hannifin Corporation - Cleveland OH
International Classification:
F16K 3102
US Classification:
25112915
Abstract:
An expansion valve (10) for heat transfer systems such as an air conditioning system, includes a control element (20) for controlling the flow rate of working fluid through the valve. The control element has a stem member (28) and movable member (42) movable on the stem member. Openings (38) to an internal passage (30) in the stem member are regulated by positioning the movable member to achieve regulated flow rate of refrigerant material through the valve. The movable member of the control element is moved by a plunger (24) of a proportional solenoid (22). The proportional solenoid has a magnetic flux circuit including a low permeance isolation tube (62) surrounding the plunger, which enables removal of the coil (76) and frame (78) of the solenoid from the valve. The solenoid further includes a variable permeance flux washer (69) the flux through which varies with plunger position, which is disposed from a gap (82) which provides an area of magnetic saturation. The proportional solenoid produces force/displacement characteristics which enable precise control of the control element and accurate regulation of the refrigerant flow rate through the valve.
Apparatus And Method For Detecting Characteristics Of A Working Fluid
Richard L. Kenyon - Irvine CA Roy M. Yabuki - Los Angeles CA Chester D. Campbell - Rancho Santa Margarita CA Sandra L. Harper - Dana Point CA Michael Nolan - Costa Mesa CA Virender Jain - Lake Forest CA Alan Matthies - Milwaukee WI
Assignee:
Parker-Hannifin Corporation - Cleveland OH
International Classification:
F25B 4902
US Classification:
622283
Abstract:
A heat transfer system includes a high side pressure sensor in the form of a temperature dependent resistance in heat exchange with the system working fluid to locally heat the fluid in response to a control signal. Control means are provided for applying the control signal to the resistance and detecting a minimum thermal resistance between the thermistor and the working fluid.
Apparatus And Method For Mass Flow Control Of A Working Fluid
Richard L. Kenyon - Irvine CA Roy M. Yabuki - Los Angeles CA Chester D. Campbell - Rancho Santa Margarita CA Sandra L. Harper - Dana Point CA Michael Nolan - Costa Mesa CA Virender Jain - Lake Forest CA Alan Matthies - Milwaukee WI
Assignee:
Parker-Hannifin Corporation - Cleveland OH
International Classification:
F25B 4900
US Classification:
62129
Abstract:
A mass flow control apparatus and method for use in combination with a heat transfer system having a compressor, condenser, expansion valve, evaporator and working fluid in a fluid circuit. The mass flow is controlled using a quality sensor for the working fluid exiting the evaporator, and a high side pressure sensor. A control circuit is provided that monitors the quality sensor and the high side pressure sensor, and controls operation of the compressor, condenser fan and valve in response thereto. A flow reduction mode is used to reduce high side pressure at the valve inlet without excessive compressor cycling by changing the quality sensor set point when the high side pressure exceeds the condenser fan turn-on pressure but is less than the compressor disengage pressure.
Expansion Valve For Air Conditioning System With Proportional Solenoid
Chester D. Campbell - Rancho Santa Margarita CA Sandra L. Harper - Dana Point CA Virender Jain - Lake Forest CA Richard L. Kenyon - Irvine CA Alan Matthies - Milwaukee WI Roger G. Riefler - Brandon MS Roy M. Yabuki - Los Angeles CA Ashok Zopey - Anaheim Hills CA
Assignee:
Parker Hannifin Corporation - Cleveland OH
International Classification:
F16K 3106
US Classification:
25112902
Abstract:
An expansion valve (10) for heat transfer systems such as an air conditioning system, includes a control element (20) for controlling the flow rate of working fluid through the valve. The control element has a stem member (28) and movable member (42) movable on the stem member. Openings (38) to an internal passage (30) in the stem member are regulated by positioning the movable member to achieve regulated flow rate of refrigerant material through the valve. The movable member of the control element is moved by a plunger (24) of a proportional solenoid (22). The proportional solenoid has a magnetic flux circuit including a low permeance isolation tube (62) surrounding the plunger, which enables removal of the coil (76) and frame (78) of the solenoid from the valve. The solenoid further includes a variable permeance flux washer (69) the flux through which varies with plunger position, which is disposed from a gap (82) which provides an area of magnetic saturation. The proportional solenoid produces force/displacement characteristics which enable precise control of the control element and accurate regulation of the refrigerant flow rate through the valve.
Apparatus And Method For Mass Flow Control Of A Working Fluid
Chester D. Campbell - Rancho Santa Margarita CA Sandra L. Harper - Dana Point CA Jain Virender - Lake Forest CA Richard L. Kenyon - Irvine CA Alan Matthies - Milwaukee WI Roy M. Yabuki - Los Angeles CA
Assignee:
Parker-Hannifin Corporation - Cleveland OH
International Classification:
F25B 3904 F25B 4104
US Classification:
62181
Abstract:
A mass flow control apparatus and method for use in combination with a heat transfer system having a compressor, condenser, expansion valve, evaporator and working fluid in a s fluid circuit. The mass flow is controlled using a quality sensor for the working fluid exiting the evaporator, and a high side pressure sensor. A control circuit is provided that monitors the quality sensor and the high side pressure sensor, and controls operation of the compressor, condenser fan and valve in response thereto. A flow reduction mode is used to reduce high side pressure at the valve inlet without excessive compressor cycling by changing the quality sensor setpoint when the high side pressure exceeds the condenser fan turn-on pressure but is less than the compressor disengage pressure.
Apparatus And Method For Mass Flow Control Of A Working Fluid
Richard L. Kenyon - Irvine CA Roy M. Yabuki - Los Angeles CA Chester D. Campbell - Rancho Santa Margarita CA Sandra L. Harper - Dana Point CA Michael Nolan - Costa Mesa CA Virender Jain - Lake Forest CA Alan Matthies - Milwaukee WI
Assignee:
Parker-Hannifin Corporation - Clevleand OH
International Classification:
F25B 4104
US Classification:
62225
Abstract:
A mass flow control apparatus and method for use in combination with a heat transfer system having a compressor, condenser, expansion valve, evaporator and working fluid in a fluid circuit. The mass flow is controlled using a quality sensor for the working fluid exiting the evaporator, and a high side pressure sensor. A control circuit is provided that monitors the quality sensor and the high side pressure sensor, and controls operation of the compressor, condenser fan and valve in response thereto. A flow reduction mode is used to reduce high side pressure at the valve inlet without excessive compressor cycling by changing the quality sensor set point when the high side pressure exceeds the condenser fan turn-on pressure but is less than the compressor disengage pressure.
Damon & Jessi Marella Scottsdale, AZ Aug 2012 to Nov 2014 Part time NannySun Valley Quilts Sun City, AZ Dec 2009 to Nov 2014 SALESThe Calico Cat & Bernina Too
Dec 2006 to Oct 2009 WORK ROOM & SALESIt's a Stitch Humble, TX Mar 2002 to Apr 2006 WORK ROOM & SALESStraits Area Federal Credit Union Cheboygan, MI Oct 1991 to Sep 2001 TELLERSandra L. Harper Phoenix, AZ Sep 1985 to Oct 1986 PROCESSORFred's Discount Store Fairhope, AL Jul 1979 to Apr 1981Gibson's Discount Store Cheyenne, WY Sep 1977 to Dec 1978Fannie Mae Candies Chicago, IL Sep 1975 to Jun 1976
Name / Title
Company / Classification
Phones & Addresses
Dr Sandra Harper President
Our Lady of the Lake College Schools - Academic - Colleges & Universities.
5414 Brittany Drive, Suite A, Baton Rouge, LA 70808 2257681710, 2257680811
Sandra Harper Owner
Harper Hearing Svc Miscellaneous Retail Stores
1007 E Warner Rd # 105, Tempe, AZ 85284 Website: harperhearingservices.com,
Sandra Harper CTO
Andiamo Telecom Miscellaneous Retail Stores
1007 E Warner Rd Ste 105, Tempe, AZ 85284
Sandra Harper Owner
Arrowhead Gymnastics Dance Studios, Schools, and Halls
19085 N 83Rd Ave, Peoria, AZ 85382 Website: arrowheadgymnasticsaz.com,
Fairhope, ALBroker/Owner at HARPER Realty For all your real estate needs and professional help contact Sandra Harper, Real estate broker/realtor of HARPER Realty in Fairhope, AL. 36532. Cell... For all your real estate needs and professional help contact Sandra Harper, Real estate broker/realtor of HARPER Realty in Fairhope, AL. 36532. Cell 251-583-7503.
Our Lady of the Lake College President Sandra S. Harper was honored as a 2011 Distinguished Alumna in the college of education by her undergraduate alma mater, Texas Tech University. Dee Adams, director of Baton Rouge Christian Counseling Center, ...
Sandra Harper, a native of Dallas, Texas, is currently the President of Our Lady of the Lake College in Baton Rouge, Louisiana. Sandra, also called "Stecher" at Lake Highlands High School and Texas Tech University was a high school teacher at Nazareth, Collinsville, and Pottsboro, Texas from 1974-1979. She then went to graduate school at The University of North Texas and began her career as a college teacher of communication at Austin College, the University of North Texas, McMurry University, and Oklahoma City University. Sandra has served as a Dean of the College of Arts and Sciences, a Vice President for Academic Affairs, and a Provost before becoming a college president.