Patents by Inventor Walter T. Grassbaugh
Walter T. Grassbaugh 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: 10883519Abstract: A compressor is provided and may include a shell and a stator. The shell includes an inner surface and an outer surface. The stator may be attached to the shell at the inner surface via a first stake. The first stake may be formed by deforming a portion of the shell into the stator.Type: GrantFiled: May 4, 2018Date of Patent: January 5, 2021Assignee: Emerson Climate Technologies, Inc.Inventors: Jason M. Warner, Gregg M. Hemmelgarn, Kyle M. Bergman, Glenn D. Deland, Walter T. Grassbaugh, James A. Schaefer
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Publication number: 20180252234Abstract: A compressor is provided and may include a shell and a stator. The shell includes an inner surface and an outer surface. The stator may be attached to the shell at the inner surface via a first stake. The first stake may be formed by deforming a portion of the shell into the stator.Type: ApplicationFiled: May 4, 2018Publication date: September 6, 2018Applicant: Emerson Climate Technologies, Inc.Inventors: Jason M. WARNER, Gregg M. HEMMELGARN, Kyle M. BERGMAN, Glenn D. DELAND, Walter T. GRASSBAUGH, James A. SCHAEFER
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Publication number: 20150118076Abstract: A thermal-valve assembly for a compressor including a partition plate having a first bore formed therethrough is provided. The thermal-valve assembly may include a body having a wall extending from and surrounding a bottom wall. The bottom wall may include a first surface defining a valve seat, a second surface formed on an opposite side of the bottom wall than the first surface and facing the partition plate, and a second bore extending through the bottom wall between the first surface and the second surface and aligned with the first bore. A projection may extend from the second surface and may be attached to the partition plate. A valve element may be received by the body and may be supported on the valve seat between an open state permitting communication through the second bore and a closed state preventing communication through the second bore.Type: ApplicationFiled: October 31, 2013Publication date: April 30, 2015Applicant: Emerson Climate Technologies, Inc.Inventor: Walter T. Grassbaugh
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Patent number: 8628312Abstract: A compressor may include a shell, a housing fixed within the shell, first and second scroll members disposed within the shell, a sleeve guide, a fastener, and a washer. The first scroll member may have a first spiral wrap extending from a first end plate and a radially outward extending scroll flange defining an opening. The second scroll member may have a second spiral wrap intermeshed with the first spiral wrap. The sleeve guide may be disposed within the opening in the scroll flange and may define an axial bore. The fastener may be disposed within the axial bore and engaged with the housing. The washer may be located between a head of the fastener and the scroll flange. A first portion of the washer may extend radially outward from the fastener head and may define a rotational stop inhibiting washer rotation through engagement with a rotationally fixed structure.Type: GrantFiled: March 14, 2011Date of Patent: January 14, 2014Assignee: Emerson Climate Technologies, Inc.Inventors: Kyle M. Bergman, Walter T. Grassbaugh
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Publication number: 20130287557Abstract: A compressor is provided and may include a shell having an inner surface and an outer surface and a bearing housing disposed within the shell and having an engagement surface opposing the inner surface. The engagement surface may include a first channel formed substantially perpendicular to a longitudinal axis of the shell and a second channel formed substantially parallel to the longitudinal axis of the shell and in communication with the first channel. The first channel and the second channel may receive a deformed portion of the shell therein to fix a position of the bearing housing relative to the shell.Type: ApplicationFiled: April 16, 2013Publication date: October 31, 2013Applicant: Emerson Climate Technologies, Inc.Inventors: Jason M. Warner, Gregg M. Hemmelgarn, Kyle M. Bergman, Glenn D. Deland, Walter T. Grassbaugh, James A. Schaefer
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Publication number: 20110243776Abstract: A compressor may include a shell, a housing fixed within the shell, first and second scroll members disposed within the shell, a sleeve guide, a fastener, and a washer. The first scroll member may have a first spiral wrap extending from a first end plate and a radially outward extending scroll flange defining an opening. The second scroll member may have a second spiral wrap intermeshed with the first spiral wrap. The sleeve guide may be disposed within the opening in the scroll flange and may define an axial bore. The fastener may be disposed within the axial bore and engaged with the housing. The washer may be located between a head of the fastener and the scroll flange. A first portion of the washer may extend radially outward from the fastener head and may define a rotational stop inhibiting washer rotation through engagement with a rotationally fixed structure.Type: ApplicationFiled: March 14, 2011Publication date: October 6, 2011Inventors: KYLE M. BERGMAN, WALTER T. GRASSBAUGH
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Patent number: 7568897Abstract: A compressor may include a housing, a compression mechanism supported within the housing, and a seal assembly. The housing may include a suction pressure region and a first discharge passage in communication with a discharge pressure region. The compression mechanism may include a second discharge passage in communication with the first discharge passage. The seal assembly may be sealingly engaged with the housing and the compression mechanism to define a chamber and to provide sealed communication between the first and second discharge passages. The seal assembly may include a seal member engaged with the compression mechanism and including a leg having an opening therein. The leg may isolate the chamber from the discharge pressure region when in a first position and may provide communication between the chamber and the discharge pressure region through the opening when in a second position different than the first position.Type: GrantFiled: January 21, 2008Date of Patent: August 4, 2009Assignee: Emerson Climate Technologies, Inc.Inventors: Walter T. Grassbaugh, John D. Prenger, Christopher Stover, Xiaogeng Su, Hanqing Zhu
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Publication number: 20080175737Abstract: A compressor may include a housing, a compression mechanism supported within the housing, and a seal assembly. The housing may include a suction pressure region and a first discharge passage in communication with a discharge pressure region. The compression mechanism may include a second discharge passage in communication with the first discharge passage. The seal assembly may be sealingly engaged with the housing and the compression mechanism to define a chamber and to provide sealed communication between the first and second discharge passages. The seal assembly may include a seal member engaged with the compression mechanism and including a leg having an opening therein. The leg may isolate the chamber from the discharge pressure region when in a first position and may provide communication between the chamber and the discharge pressure region through the opening when in a second position different than the first position.Type: ApplicationFiled: January 21, 2008Publication date: July 24, 2008Inventors: Walter T. Grassbaugh, John D. Prenger, Christopher Stover, Xiaogeng Su, Hanqing Zhu
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Patent number: 7338265Abstract: A scroll machine utilizes a floating seal to isolate pressurized fluid to provide axial biasing. The floating seal is designed as a single piece plate with inner and outer annular seals. The inner and outer annular seals can be U-shaped, V-shaped or L-shaped and each configuration is oriented to provide pressure actuation of the seal. Additional embodiments add a discharge valve, a high temperature protection system or a high pressure protection system to the floating seal.Type: GrantFiled: March 4, 2005Date of Patent: March 4, 2008Assignee: Emerson Climate Technologies, Inc.Inventors: Walter T Grassbaugh, John D Prenger, Christopher Stover, Xiaogeng Su, Hanqing Zhu
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Publication number: 20040202562Abstract: A reciprocating compressor is provided with a seal casing and includes a motor and a uni-body member which is mounted to the motor and provides a cylinder and head portion formed as a unitary member in order to reduce the number of machining operations and the number of parts required for assembly of the reciprocating compressor.Type: ApplicationFiled: April 14, 2003Publication date: October 14, 2004Inventors: Walter T. Grassbaugh, Randall L. Knick, Kevin J. Gehret, Frank S. Wallis, Ernest R. Bergman, Kimberly A. Wenning, Jacob A. Groshek
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Patent number: 6582211Abstract: A compressor assembly includes a shell which defines a discharge chamber. A discharge valve assembly is attached to the shell in communication with the discharge chamber. The discharge valve assembly includes a stamped or coined valve seat, a drawn tubular element and a stamped valve member. The stamping, drawing and coining operations used to manufacture the discharge valve assembly significantly reduce the manufacturing costs for the discharge valve assembly.Type: GrantFiled: August 5, 2002Date of Patent: June 24, 2003Assignee: Copeland CorporationInventors: Frank S. Wallis, Walter T. Grassbaugh, William Christian Gates, Jeffrey L. Berning, Clyde C. Verhoff, Norman G. Beck
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Publication number: 20020187062Abstract: A compressor assembly includes a shell which defines a discharge chamber. A discharge valve assembly is attached to the shell in communication with the discharge chamber. The discharge valve assembly includes a stamped or coined valve seat, a drawn tubular element and a stamped valve member. The stamping, drawing and coining operations used to manufacture the discharge valve assembly significantly reduce the manufacturing costs for the discharge valve assembly.Type: ApplicationFiled: August 5, 2002Publication date: December 12, 2002Inventors: Frank S. Wallis, Walter T. Grassbaugh, William Christian Gates, Jeffrey L. Berning, Clyde C. Verhoff, Norman G. Beck
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Patent number: 6428292Abstract: A compressor assembly includes a shell which defines a discharge chamber. A discharge valve assembly is attached to the shell in communication with the discharge chamber. The discharge valve assembly includes a stamped or coined valve seat, a drawn tubular element and a stamped valve member. The stamping, drawing and coining operations used to manufacture the discharge valve assembly significantly reduce the manufacturing costs for the discharge valve assembly.Type: GrantFiled: October 27, 2000Date of Patent: August 6, 2002Assignee: Copeland CorporationInventors: Frank S. Wallis, Walter T. Grassbaugh, William Christian Gates, Jeffrey L. Berning, Clyde C. Verhoff, Norman G. Beck
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Patent number: 6171084Abstract: A compressor assembly includes a shell which defines a discharge chamber. A discharge valve assembly is attached to the shell in communication with the discharge chamber. The discharge valve assembly includes a stamped or coined valve seat, a drawn tubular element and a stamped valve member. The stamping, drawing and coining operations used to manufacture the discharge valve assembly significantly reduce the manufacturing costs for the discharge valve assembly.Type: GrantFiled: January 26, 1999Date of Patent: January 9, 2001Assignee: Copeland CorporationInventors: Frank S. Wallis, Walter T. Grassbaugh, William Christian Gates, Jeffrey L. Berning, Clyde C. Verhoff, Norman G. Beck
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Patent number: 5503542Abstract: A compressor has an hermetic shell within which is located an internal pressure relief (IPR) valve. The valve is resistance welded directly to a separation plate in a scroll compressor or directly to the outside wall of the discharge muffler in a piston/cylinder compressor. The direct welding of the IPR valve eliminates unnecessary components and lowers the manufacturing costs of the compressor.Type: GrantFiled: January 13, 1995Date of Patent: April 2, 1996Assignee: Copeland CorporationInventors: Walter T. Grassbaugh, Jeffery D. Ramsey
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Patent number: 5267844Abstract: A means for attaching the bearing housing to an outer shell is disclosed. The outer shell is plastically deformed into a plurality of apertures formed into the bearing housing. The deformation of the shell is such that material is displaced into the aperture of the bearing housing member without penetrating through the wall of the shell, thus maintaining the integrity of the shell. The shape of the displaced material of the shell is such that a generally cylindrical load bearing surface having a sharp corner is created which is capable of withstanding both axially and circumferentially directed forces of substantial magnitude.Type: GrantFiled: April 13, 1992Date of Patent: December 7, 1993Assignee: Copeland CorporationInventors: Walter T. Grassbaugh, Dilip S. Sathe
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Patent number: 4547131Abstract: A method of assembling a hermetic refrigeration motor compressor is disclosed wherein the motor stator is assembled in a first shell section, the compressor is assembled in another shell section and the two shell sections are aligned and secured together in such a manner as to insure a uniform air gap between the rotor and stator. The method employed enables the two shell sections to be initially locked in position before complete welding of the periphery so as to avoid potential heat distortion.Type: GrantFiled: July 25, 1983Date of Patent: October 15, 1985Assignee: Copeland CorporationInventors: Delmar R. Riffe, John P. Elson, Dilip S. Sathe, Walter T. Grassbaugh