Patents by Inventor Andrew W. Paczuski
Andrew W. Paczuski 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: 7210912Abstract: A reciprocating piston compressor having a suction muffler and a pair of discharge mufflers to attenuate noise created by the primary pumping frequency in the primary pumping pulse. The suction muffler is disposed along a suction tube extending between the motor cap and the cylinder head of the compressor. The discharge mufflers are positioned in series within the compressor to receive discharge gases from the compression mechanism and are spaced one quarter of a wavelength from each other so as to sequentially diminish the problematic or noisy frequencies created during compressor operation. The motor/compressor assembly including the motor and compression mechanism is mounted to the interior surface of the compressor housing by spring mounts. These mounted are secured to the housing to define the position of the nodes and anti-nodes of the frequency created in the housing to reduce noise produced by natural frequencies during compressor operation.Type: GrantFiled: June 17, 2004Date of Patent: May 1, 2007Assignee: Tecumseh Products CompanyInventors: Phillip A Tomell, Ronny A Shafer, Anil Gopinathan, Andrew W Paczuski, Michael A DiFlora
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Publication number: 20040223854Abstract: A reciprocating piston compressor having a suction muffler and a pair of discharge mufflers to attenuate noise created by the primary pumping frequency in the primary pumping pulse. The suction muffler is disposed along a suction tube extending between the motor cap and the cylinder head of the compressor. The discharge mufflers are positioned in series within the compressor to receive discharge gases from the compression mechanism and are spaced one quarter of a wavelength from each other so as to sequentially diminish the problematic or noisy frequencies created during compressor operation. The motor/compressor assembly including the motor and compression mechanism is mounted to the interior surface of the compressor housing by spring mounts. These mounted are secured to the housing to define the position of the nodes and anti-nodes of the frequency created in the housing to reduce noise produced by natural frequencies during compressor operation.Type: ApplicationFiled: June 17, 2004Publication date: November 11, 2004Inventors: Phillip A. Tomell, Ronny A. Shafer, Anil Gopinathan, Andrew W. Paczuski, Michael A. DiFlora
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Patent number: 6776589Abstract: A reciprocating piston compressor having a suction muffler and a pair of discharge mufflers to attenuate noise created by the primary pumping frequency in the primary pumping pulse. The suction muffler is disposed along a suction tube extending between the motor cap and the cylinder head of the compressor. The discharge mufflers are positioned in series within the compressor to receive discharge gases from the compression mechanism and are spaced one quarter of a wavelength from each other so as to sequentially diminish the problematic or noisy frequencies created during compressor operation. The motor/compressor assembly including the motor and compression mechanism is mounted to the interior surface of the compressor housing by spring mounts. These mounted are secured to the housing to define the position of the nodes and anti-nodes of the frequency created in the housing to reduce noise produced by natural frequencies during compressor operation.Type: GrantFiled: January 24, 2003Date of Patent: August 17, 2004Assignee: Tecumseh Products CompanyInventors: Phillip A. Tomell, Ronny A. Shafer, Anil Gopinathan, Andrew W. Paczuski, Michael A. DiFlora
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Publication number: 20030156955Abstract: A reciprocating piston compressor having a suction muffler and a pair of discharge mufflers to attenuate noise created by the primary pumping frequency in the primary pumping pulse. The suction muffler is disposed along a suction tube extending between the motor cap and the cylinder head of the compressor. The discharge mufflers are positioned in series within the compressor to receive discharge gases from the compression mechanism and are spaced one quarter of a wavelength from each other so as to sequentially diminish the problematic or noisy frequencies created during compressor operation. The motor/compressor assembly including the motor and compression mechanism is mounted to the interior surface of the compressor housing by spring mounts. These mounted are secured to the housing to define the position of the nodes and anti-nodes of the frequency created in the housing to reduce noise produced by natural frequencies during compressor operation.Type: ApplicationFiled: January 24, 2003Publication date: August 21, 2003Inventors: Phillip A. Tomell, Ronny A. Shafer, Anil Gopinathan, Andrew W. Paczuski, Michael A. DiFlora
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Patent number: 6558137Abstract: A reciprocating piston compressor having a suction muffler and a pair of discharge mufflers to attenuate noise created by the primary pumping frequency in the primary pumping pulse. The suction muffler is disposed along a suction tube extending between the motor cap and the cylinder head of the compressor. The discharge mufflers are positioned in series within the compressor to receive discharge gases from the compression mechanism and are spaced one quarter of a wavelength from each other so as to sequentially diminish the problematic or noisy frequencies created during compressor operation. The motor/compressor assembly including the motor and compression mechanism is mounted to the interior surface of the compressor housing by spring mounts. These mounted are secured to the housing to define the position of the nodes and anti-nodes of the frequency created in the housing to reduce noise produced by natural frequencies during compressor operation.Type: GrantFiled: November 27, 2001Date of Patent: May 6, 2003Assignee: Tecumseh Products CompanyInventors: Phillip A. Tomell, Ronny A. Shafer, Anil Gopinathan, Andrew W. Paczuski, Michael A. DiFlora
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Patent number: 6527085Abstract: A compressor assembly including a housing, a compression mechanism disposed in the housing, a sump located in the housing, the sump containing liquid lubricant, a conduit extending between the compression mechanism and the sump, the compression mechanism and the sump being in fluid communication through the conduit, lubricant in the sump being provided to the compression mechanism through the conduit, and a reservoir containing liquid lubricant located between the compression mechanism and the sump. The reservoir is in fluid communication with the conduit, and the compression mechanism and the reservoir are in fluid communication through the conduit. Lubricant in the reservoir is provided to the compression mechanism through the conduit.Type: GrantFiled: November 14, 2000Date of Patent: March 4, 2003Assignee: Tecumseh Products CompanyInventor: Andrew W. Paczuski
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Patent number: 6484847Abstract: A hermetic compressor assembly includes a compressor housing having a quantity of liquid lubricant therein. A compressor mechanism is provided within the compressor housing and a drive shaft is selectively rotatable and operably connected to the compressor mechanism. A liquid lubricant displacement element is engaged to the drive shaft and a support member is attached to the compressor housing. A pivotable magnetic member is provided between the liquid lubricant displacement element and the support member and includes a suction port provided therein. The liquid lubricant displacement element is in fluid communication with the quantity of liquid lubricant through the suction port in the magnetic member. At least a portion of any ferrous particles contained in the liquid lubricant are attracted to and retained by the magnetic member as the liquid lubricant is passed through the suction port of the magnetic member.Type: GrantFiled: November 30, 2000Date of Patent: November 26, 2002Assignee: Tecumseh Products CompanyInventor: Andrew W. Paczuski
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Publication number: 20020098093Abstract: A reciprocating piston compressor having a suction muffler and a pair of discharge mufflers to attenuate noise created by the primary pumping frequency in the primary pumping pulse. The suction muffler is disposed along a suction tube extending between the motor cap and the cylinder head of the compressor. The discharge mufflers are positioned in series within the compressor to receive discharge gases from the compression mechanism and are spaced one quarter of a wavelength from each other so as to sequentially diminish the problematic or noisy frequencies created during compressor operation. The motor/compressor assembly including the motor and compression mechanism is mounted to the interior surface of the compressor housing by spring mounts. These mounted are secured to the housing to define the position of the nodes and anti-nodes of the frequency created in the housing to reduce noise produced by natural frequencies during compressor operation.Type: ApplicationFiled: November 27, 2001Publication date: July 25, 2002Inventors: Phillip A. Tomell, Ronny A. Shafer, Anil Gopinathan, Andrew W. Paczuski, Michael A. DiFlora
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Publication number: 20020063017Abstract: A hermetic compressor assembly includes a compressor housing having a quantity of liquid lubricant therein. A compressor mechanism is provided within the compressor housing and a drive shaft is selectively rotatable and operably connected to the compressor mechanism. A liquid lubricant displacement element is engaged to the drive shaft and a support member is attached to the compressor housing. A pivotable magnetic member is provided between the liquid lubricant displacement element and the support member and includes a suction port provided therein. The liquid lubricant displacement element is in fluid communication with the quantity of liquid lubricant through the suction port in the magnetic member. At least a portion of any ferrous particles contained in the liquid lubricant are attracted to and retained by the magnetic member as the liquid lubricant is passed through the suction port of the magnetic member.Type: ApplicationFiled: November 30, 2000Publication date: May 30, 2002Applicant: Tecumseh Products CompanyInventor: Andrew W. Paczuski
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Patent number: 5951261Abstract: A reciprocating piston compressor including at least one cylinder, a reciprocable piston disposed therein, a crankshaft rotatable in forward and reverse directions and having an eccentric crankpin, and a cam disposed about the crankpin, the piston operatively connected to the cam. The cam is rotatable about the crankpin between a first angular position corresponding to a first piston stroke length during forward crankshaft rotation and a second angular position corresponding to a second piston stroke length during reverse crankshaft rotation. In one of its first and second angular positions, the cam is rotatably locked to the crankpin.Type: GrantFiled: June 17, 1998Date of Patent: September 14, 1999Assignee: Tecumseh Products CompanyInventor: Andrew W. Paczuski
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Patent number: 5022833Abstract: A single piece gasket valve plate assembly for sealing and separating assembly parts secured to the valve plate of a reciprocating piston compressor. The gasket includes a compressible peripheral portion for sealing and separating the valve plate to the cylinder head. The device also includes compressible central portions, which are spaced from and integral with the peripheral portion, wherein the central portions members are adapted to encircle the suction ports of the valve plate to seal and separate the suction ports from the discharge ports. A connecting portion extending through the discharge chamber connects the peripheral portion of the gasket to the central portions.Type: GrantFiled: December 6, 1989Date of Patent: June 11, 1991Assignee: Tecumseh Products CompanyInventors: Tara C. Kandpal, Andrew W. Paczuski, Herbert G. Siewert
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Patent number: 4131396Abstract: A hermetic refrigerant compressor includes an electric motor mounted within a sealed housing with a crankshaft extending vertically from the motor to connect with a plurality of radially disposed compressor pistons. The lower end portion of the crankshaft extends into a sump of lubricant collected in the lower end of the housing and first and second stage pumping means are formed in the lower end of the housing to pump lubricant to upper and lower bearings which support the crankshaft within the housing. A vent communicates with the inlet to the first stage pumping means for venting flashed refrigerant gases from the system before the lubricant enters the first stage pumping means. In addition, a filter may be provided for continuously cleaning some of the lubricant discharged from the first stage pumping means without interfering with the flow of lubricant from the first stage pumping means to the second stage pumping means.Type: GrantFiled: April 7, 1977Date of Patent: December 26, 1978Assignee: Sundstrand CorporationInventors: George T. Privon, Andrew W. Paczuski