Patents by Inventor Steven E. Wolfgram
Steven E. Wolfgram 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: 11635265Abstract: A bolted hinge assembly is provided for a waterbox cover (a “waterbox hinge assembly”). The waterbox hinge assembly generally does not require welding on the waterbox cover or the heat exchanger in an HVAC system (“HVAC unit” hereinafter). Further, the waterbox hinge assembly may be installable to the HVAC unit without removing the heat exchange fluids (e.g., water, refrigerant, etc.) from the HVAC unit. In some cases, the waterbox hinge assembly can be installed on an HVAC unit without removing any bolts from the waterbox cover. Once installed, the waterbox hinge assembly can be left in place so that it can be reused anytime the HVAC unit is serviced.Type: GrantFiled: February 4, 2019Date of Patent: April 25, 2023Assignee: TRANE INTERNATIONAL INC.Inventors: Steven E. Wolfgram, Daoud A. Jandal, Bradley S. Wickersham, Fred Eickstaedt, James M. McCool, Raymond S. Schafer, Ronald E. Schlicht, Robert A. Harris, Steven E. Meloling, Raghu Kumar, Kishore Prabakaran
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Publication number: 20190170454Abstract: Embodiments described in this specification are generally directed to a bolted hinge assembly for a waterbox cover (a “waterbox hinge assembly”). The waterbox hinge assembly generally does not require welding on the waterbox cover or the heat exchanger in an HVAC system (“HVAC unit” hereinafter). Further, the waterbox hinge assembly may be installable to the HVAC unit without removing the heat exchange fluids (e.g., water, refrigerant, etc.) from the HVAC unit. In some embodiments, the waterbox hinge assembly can be installed on an HVAC unit without removing any bolts from the waterbox cover. Once installed, the waterbox hinge assembly can be left in place so that it can be reused anytime the HVAC unit is serviced.Type: ApplicationFiled: February 4, 2019Publication date: June 6, 2019Inventors: Steven E. Wolfgram, Daoud A. Jandal, Bradley S. Wickersham, Fred Eickstaedt, James M. McCool, Raymond S. Schafer, Ronald E. Schlicht, Robert A. Harris, Steven E. Meloling, Raghu Kumar, Kishore Prabakaran
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Patent number: 10203168Abstract: Embodiments described in this specification are generally directed to a bolted hinge assembly for a waterbox cover (a “waterbox hinge assembly”). The waterbox hinge assembly generally does not require welding on the waterbox cover or the heat exchanger in an HVAC system (“HVAC unit” hereinafter). Further, the waterbox hinge assembly may be installable to the HVAC unit without removing the heat exchange fluids (e.g., water, refrigerant, etc.) from the HVAC unit. In some embodiments, the waterbox hinge assembly can be installed on an HVAC unit without removing any bolts from the waterbox cover. Once installed, the waterbox hinge assembly can be left in place so that it can be reused anytime the HVAC unit is serviced.Type: GrantFiled: June 15, 2016Date of Patent: February 12, 2019Assignee: TRANE INTERNATIONAL INC.Inventors: Steven E. Wolfgram, Daoud A. Jandal, Bradley S. Wickersham, Fred Eickstaedt, James M. McCool, Raymond S. Schafer, Ronald E. Schlicht, Robert A. Harris, Steven E. Meloling, Raghu Kumar, Kishore Prabakaran
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Publication number: 20160363393Abstract: Embodiments described in this specification are generally directed to a bolted hinge assembly for a waterbox cover (a “waterbox hinge assembly”). The waterbox hinge assembly generally does not require welding on the waterbox cover or the heat exchanger in an HVAC system (“HVAC unit” hereinafter). Further, the waterbox hinge assembly may be installable to the HVAC unit without removing the heat exchange fluids (e.g., water, refrigerant, etc.) from the HVAC unit. In some embodiments, the waterbox hinge assembly can be installed on an HVAC unit without removing any bolts from the waterbox cover. Once installed, the waterbox hinge assembly can be left in place so that it can be reused anytime the HVAC unit is serviced.Type: ApplicationFiled: June 15, 2016Publication date: December 15, 2016Inventors: Steven E. Wolfgram, Daoud A. Jandal, Bradley S. Wickersham, Fred Eickstaedt, James M. McCool, Raymond S. Schafer, Ronald E. Schlicht, Robert A. Harris, Steven E. Meloling, Raghu Kumar, Kishore Prabakaran
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Patent number: 6705100Abstract: A purging device for a system accumulating condensable and non-condensable gases. The purging device comprises: a purge tank; apparatus receiving the condensable and non-condensable gases from the system and directing said gases into the purge tank; apparatus condensing the non-condensable gases into a condensed form; apparatus accumulating the non-condensable gases in a header space; apparatus returning the condensed gases from the purge tank to the system; apparatus controllably removing the accumulated non-condensable gases from the header space; and apparatus generating controlled flow in the condensable and non-condensable gases.Type: GrantFiled: May 15, 2003Date of Patent: March 16, 2004Assignee: American Standard International Inc.Inventors: Richard M. Heiden, Robert J. Roth, Brian T. Sullivan, Steven E. Wolfgram
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Patent number: 6647736Abstract: A purging device for a system accumulating condensable and non-condensable gases. The purging device comprises: a purge tank; apparatus receiving the condensable and non-condensable gases from the system and directing said gases into the purge tank; apparatus condensing the non-condensable gases into a condensed form; apparatus accumulating the non-condensable gases in a header space; apparatus returning the condensed gases from the purge tank to the system; apparatus controllably removing the accumulated non-condensable gases from the header space; and apparatus generating controlled flow in the condensable and non-condensable gases.Type: GrantFiled: May 15, 2003Date of Patent: November 18, 2003Assignee: American Standard International Inc.Inventors: Richard M. Heiden, Robert J. Roth, Brian T. Sullivan, Steven E. Wolfgram, Lori Ann Manning
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Publication number: 20030192332Abstract: A purging device for a system accumulating condensable and non-condensable gases. The purging device comprises: a purge tank; apparatus receiving the condensable and non-condensable gases from the system and directing said gases into the purge tank; apparatus condensing the non-condensable gases into a condensed form; apparatus accumulating the non-condensable gases in a header space; apparatus returning the condensed gases from the purge tank to the system; apparatus controllably removing the accumulated non-condensable gases from the header space; and apparatus generating controlled flow in the condensable and non-condensable gases.Type: ApplicationFiled: May 15, 2003Publication date: October 16, 2003Inventors: Richard M. Heiden, Robert J. Roth, Brian T. Sullivan, Steven E. Wolfgram, Lori Ann Manning
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Publication number: 20030192333Abstract: A purging device for a system accumulating condensable and non-condensable gases. The purging device comprises: a purge tank; apparatus receiving the condensable and non-condensable gases from the system and directing said gases into the purge tank; apparatus condensing the non-condensable gases into a condensed form; apparatus accumulating the non-condensable gases in a header space; apparatus returning the condensed gases from the purge tank to the system; apparatus controllably removing the accumulated non-condensable gases from the header space; and apparatus generating controlled flow in the condensable and non-condensable gases.Type: ApplicationFiled: May 15, 2003Publication date: October 16, 2003Inventors: Richard M. Heiden, Robert J. Roth, Brian T. Sullivan, Steven E. Wolfgram
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Patent number: 6564564Abstract: A purging device for a system accumulating condensable and non-condensable gases. The purging device comprises: a purge tank; apparatus receiving the condensable and non-condensable gases from the system and directing said gases into the purge tank; apparatus condensing the non-condensable gases into a condensed form; apparatus accumulating the non-condensable gases in a header space; apparatus returning the condensed gases from the purge tank to the system; apparatus controllably removing the accumulated non-condensable gases from the header space; and apparatus generating controlled flow in the condensable and non-condensable gases.Type: GrantFiled: October 22, 2001Date of Patent: May 20, 2003Assignee: American Standard International Inc.Inventors: Richard M. Heiden, Robert J. Roth, Brian T. Sullivan, Steven E. Wolfgram
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Publication number: 20030074909Abstract: A purging device for a system accumulating condensable and non-condensable gases. The purging device comprises: a purge tank; apparatus receiving the condensable and non-condensable gases from the system and directing said gases into the purge tank; apparatus condensing the non-condensable gases into a condensed form; apparatus accumulating the non-condensable gases in a header space; apparatus returning the condensed gases from the purge tank to the system; apparatus controllably removing the accumulated non-condensable gases from the header space; and apparatus generating controlled flow in the condensable and non-condensable gases.Type: ApplicationFiled: October 22, 2001Publication date: April 24, 2003Inventors: Richard M. Heiden, Robert J. Roth, Brian T. Sullivan, Steven E. Wolfgram