Patents by Inventor Sunil S. Kulkarni
Sunil S. Kulkarni 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: 10041487Abstract: A compressor may include a shell, a compression mechanism, first and second temperature sensors, and a control module. The shell may define a lubricant sump. The compression mechanism may be disposed within the shell and may be operable to compress a working fluid. The first temperature sensor may be at least partially disposed within the shell at a first position. The second temperature sensor may be at least partially disposed within the shell at a second position that is vertically higher than the first position. The control module may be in communication with the first and second temperature sensors and the pressure sensor and may determine whether a liquid level in the lubricant sump is below a predetermined level based on data received from the first and second temperature sensors.Type: GrantFiled: May 11, 2016Date of Patent: August 7, 2018Assignee: Emerson Climate Technologies, Inc.Inventors: Sunil S. Kulkarni, Ronald L. Van Hoose
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Patent number: 9638036Abstract: A compression mechanism can include a first scroll member, a second scroll member, and an Oldham coupling. The first scroll member can include a base plate. The second scroll member can meshingly engaged with the first scroll member, and include a first radially extending slot. The Oldham coupling can include a ring portion disposed about the base plate and a first radially extending key portion disposed in the first radially extending slot. The ring portion and the key portion can include a pair of upper surfaces and a pair of lower surfaces. At least one pair of upper surfaces or lower surfaces can be substantially coplanar.Type: GrantFiled: October 31, 2014Date of Patent: May 2, 2017Assignee: Emerson Climate Technologies, Inc.Inventors: James F. Fogt, Sunil S. Kulkarni
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Publication number: 20160252092Abstract: A compressor may include a shell, a compression mechanism, first and second temperature sensors, and a control module. The shell may define a lubricant sump. The compression mechanism may be disposed within the shell and may be operable to compress a working fluid. The first temperature sensor may be at least partially disposed within the shell at a first position. The second temperature sensor may be at least partially disposed within the shell at a second position that is vertically higher than the first position. The control module may be in communication with the first and second temperature sensors and the pressure sensor and may determine whether a liquid level in the lubricant sump is below a predetermined level based on data received from the first and second temperature sensors.Type: ApplicationFiled: May 11, 2016Publication date: September 1, 2016Applicant: Emerson Climate Technologies, Inc.Inventors: Sunil S. KULKARNI, Ronald L. VAN HOOSE
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Patent number: 9341187Abstract: A compressor may include a shell, a compression mechanism, first and second temperature sensors, and a control module. The shell may define a lubricant sump. The compression mechanism may be disposed within the shell and may be operable to compress a working fluid. The first temperature sensor may be at least partially disposed within the shell at a first position. The second temperature sensor may be at least partially disposed within the shell at a second position that is vertically higher than the first position. The control module may be in communication with the first and second temperature sensors and the pressure sensor and may determine whether a liquid level in the lubricant sump is below a predetermined level based on data received from the first and second temperature sensors.Type: GrantFiled: August 27, 2014Date of Patent: May 17, 2016Assignee: Emerson Climate Technologies, Inc.Inventors: Troy R. Brostrom, Sunil S. Kulkarni, Ronald L. Van Hoose
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Publication number: 20160123326Abstract: A compression mechanism can include a first scroll member, a second scroll member, and an Oldham coupling. The first scroll member can include a base plate. The second scroll member can meshingly engaged with the first scroll member, and include a first radially extending slot. The Oldham coupling can include a ring portion disposed about the base plate and a first radially extending key portion disposed in the first radially extending slot. The ring portion and the key portion can include a pair of upper surfaces and a pair of lower surfaces. At least one pair of upper surfaces or lower surfaces can be substantially coplanar.Type: ApplicationFiled: October 31, 2014Publication date: May 5, 2016Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.Inventors: James F. Fogt, Sunil S. Kulkarni
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Publication number: 20150064040Abstract: A compressor may include a shell, a compression mechanism, first and second temperature sensors, and a control module. The shell may define a lubricant sump. The compression mechanism may be disposed within the shell and may be operable to compress a working fluid. The first temperature sensor may be at least partially disposed within the shell at a first position. The second temperature sensor may be at least partially disposed within the shell at a second position that is vertically higher than the first position. The control module may be in communication with the first and second temperature sensors and the pressure sensor and may determine whether a liquid level in the lubricant sump is below a predetermined level based on data received from the first and second temperature sensors.Type: ApplicationFiled: August 27, 2014Publication date: March 5, 2015Inventors: TROY R. BROSTROM, SUNIL S. KULKARNI, RONALD L. VAN HOOSE
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Patent number: 5707210Abstract: A thermally responsive valve assembly for scroll motor-compressor high temperature protection, which causes a high-side to low-side leak when excessive discharge gas temperatures are encountered, thereby causing the motor protector to trip and de-energize the motor. The valve assembly includes means for ducting the excessive temperature discharge gas to the lower portion of the motor/compressor shell to the motor to circulate the high temperature gas throughout the motor cavity. The excessive temperature discharge gas heats the motor stator and windings which will in turn cause the motor protector to trip and de-energize the motor. A secondary flow passage increases the flow rate or the discharge gas to lower the cycle time of the compressor.Type: GrantFiled: October 13, 1995Date of Patent: January 13, 1998Assignee: Copeland CorporationInventors: Jeffery D. Ramsey, Jean-Luc Caillat, Sunil S. Kulkarni
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Patent number: 5667371Abstract: A scroll machine has a muffler which is located between a discharge port located in the scroll assembly and a discharge chamber located in a hermetic shell. The muffler has a top cap which is attached to a partition which defines the discharge chamber. A muffler is attached to the top cap and extends towards the scroll assembly through an opening in the partition. The muffler has a generally cylindrical body with two end caps having a spherical surface. The cylindrical body and the end caps define a plurality of perforations which comprise a specific percentage of the total area of these components.Type: GrantFiled: April 8, 1996Date of Patent: September 16, 1997Assignee: Copeland CorporationInventors: Werner H. Prenger, Sunil S. Kulkarni
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Patent number: 5527158Abstract: A thermally responsive valve assembly (134) for scroll motorcompressor high temperature protection, which causes a high-side to low-side leak when excessive discharge gas temperatures are encountered, thereby causing the motor protector (35) to trip and de-energize the motor. The valve assembly (134) includes means motor ducting (200) the excessive temperature discharge gas to the lower portion of the motor/compressor shell (10) to the motor to circulate the high temperature gas throughout the motor cavity. The excessive temperature discharge gas heats the motor stator (20) and windings (32) which will in turn cause the motor protector (35) to trip and de-energize the motor.Type: GrantFiled: December 9, 1994Date of Patent: June 18, 1996Assignee: Copeland CorporationInventors: Jeffery D. Ramsey, Jean-Luc Caillat, Sunil S. Kulkarni
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Patent number: 5141407Abstract: A thermally responsive valve arrangement for scroll motor-compressor high temperature protection, which causes a high-side to low-side leak when excessive discharge gas temperatures are encountered, thereby causing the motor protector to trip and deenergize to motor. A unique valve per se is also disclosed.Type: GrantFiled: October 1, 1990Date of Patent: August 25, 1992Assignee: Copeland CorporationInventors: Jeffery D. Ramsey, Jean-Luc Caillat, Sunil S. Kulkarni