Patents Assigned to Harper International Corporation
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Patent number: 9618228Abstract: An improved airflow delivery system (1) comprising an air moving element (3) configured to move air in a flow path, a chamber (19) in the flow path configured to receive product (9), an air transfer chamber (11) comprising an inlet (10) of a selected area for receiving air in the flow path in a first direction (x-x) and an outlet (14) of a selected area greater than the area of the inlet for discharging air in the flow path in a second direction (y-y) different from the first direction, an airflow divider (33) extending across the air transfer outlet and configured to divide airflow in the flow path, an airflow directional (15) extending across the flow path downstream of the airflow divider and upstream of the chamber, the airflow directional having an upstream inlet face (28a) and a downstream outlet face (29c) and configured to receive airflow at the inlet face and split the airflow into multiple separated sub-paths (27) within the flow path and to discharge the airflow from the downstream outlet face subsType: GrantFiled: July 11, 2011Date of Patent: April 11, 2017Assignee: Harper International CorporationInventors: Renee M. Bagwell, William J. Stry
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Patent number: 9255733Abstract: An improved oven (1) comprising a conveyor configured and arranged to move a product (11) to be processed through an oven, a primary air delivery system (45) configured and arranged to provide a heated primary air flow (47), a secondary air delivery system configured and arranged to provide a heated secondary air flow (48), a processing enclosure (21) configured and arranged to receive and contain the product and the primary air flow, an insulated enclosure (2) configured and arranged to receive the heated secondary air flow, the processing enclosure configured and arranged to extend through the insulated enclosure and the heated secondary air flow and to separate the primary air flow from the secondary air flow.Type: GrantFiled: December 21, 2012Date of Patent: February 9, 2016Assignee: Harper International CorporationInventors: Renee M. Bagwell, William J. Stry
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Patent number: 8485815Abstract: A rotary tube furnace (1) comprising an insulated heating chamber (4), the insulated heating chamber having a product discharge outlet (21) and a process tube inlet (39), a heating element (14) operatively arranged to selectively heat the heating chamber, a generally horizontally extending process tube (2) supported for rotation relative to the heating chamber, the process tube having a first portion (36) generally arranged outside of the heating chamber and a cantilevered second portion (37) extending from the first portion into the heating chamber and terminating at a discharge end (38) within the heating chamber, a feed mechanism (40) configured and arranged to feed product into the process tube, and a bearing assembly operating between a support frame (34) and the first portion of the process tube and configured and arranged to support the process tube and transmit rotational torque to the process tube.Type: GrantFiled: May 7, 2009Date of Patent: July 16, 2013Assignee: Harper International CorporationInventors: Peter R. Witting, William J. Stry, Carl H Vander Weide, Jeffrey E. Purdy, Jason A. Ginn
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Publication number: 20130167397Abstract: An improved oven (1) comprising a conveyor configured and arranged to move a product (11) to be processed through an oven, a primary air delivery system (45) configured and arranged to provide a heated primary air flow (47), a secondary air delivery system configured and arranged to provide a heated secondary air flow (48), a processing enclosure (21) configured and arranged to receive and contain the product and the primary air flow, an insulated enclosure (2) configured and arranged to receive the heated secondary air flow, the processing enclosure configured and arranged to extend through the insulated enclosure and the heated secondary air flow and to separate the primary air flow from the secondary air flow.Type: ApplicationFiled: December 21, 2012Publication date: July 4, 2013Applicant: Harper International CorporationInventors: Renee M. Bagwell, William J. Stry
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Publication number: 20120015598Abstract: An improved airflow delivery system (1) comprising an air moving element (3) configured to move air in a flow path, a chamber (19) in the flow path configured to receive product (9), an air transfer chamber (11) comprising an inlet (10) of a selected area for receiving air in the flow path in a first direction (x-x) and an outlet (14) of a selected area greater than the area of the inlet for discharging air in the flow path in a second direction (y-y)different from the first direction, an airflow divider (33) extending across the air transfer outlet and configured to divide airflow in the flow path, an airflow directional (15) extending across the flow path downstream of the airflow divider and upstream of the chamber, the airflow directional having an upstream inlet face (28a) and a downstream outlet face (29c) and configured to receive airflow at the inlet face and split the airflow into multiple separated sub-paths (27) within the flow path and to discharge the airflow from the downstream outlet face substType: ApplicationFiled: July 11, 2011Publication date: January 19, 2012Applicant: Harper International CorporationInventors: Renee M. Bagwell, William J. Stry
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Publication number: 20100178627Abstract: An automatic feed oven for material processing (1) comprising an insulated heating chamber (4), the heating chamber having the product discharge outlet (21) and a material inlet (39), a heating source (14) operatively arranged to heat the heating chamber, a chamber feed mechanism (40) operatively arranged to feed material into the chamber through the material inlet, the chamber feed mechanism comprising a receptacle (6) operatively arranged to receive material, a linear actuator (42) operatively arranged to move the receptacle between a fill position (55) outside the chamber and a discharge position (56) within the chamber, a rotational actuator (43) operatively arranged to rotate the receptacle between a receiving position (57) and a releasing position (58), and a receptacle feed mechanism (44) operatively arranged to feed material into the receptacle when the receptacle is in the fill position.Type: ApplicationFiled: January 8, 2010Publication date: July 15, 2010Applicant: HARPER INTERNATIONAL CORPORATIONInventors: Bruce J. Dover, Jason A. Gwin
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Patent number: 6910882Abstract: The invention comprises, in one form thereof, a continuous processing apparatus for high temperature thermal treatment of granular materials. The apparatus includes a vertical conveyor means with an internal feed mechanism for transporting granular feedstock upward, an external export means for taking reacted product downward wherein said internal feed heats said granular feedstock by absorbing heat from the product flowing downward through said export means, and a heating means disposed around a top portion of said vertical conveyor means and said external export means.Type: GrantFiled: September 8, 2003Date of Patent: June 28, 2005Assignees: Harper International Corporation, SGL Carbon AGInventors: Charles Miller, William Stry, Uwe Hoechst, Ludger Fischer
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Patent number: 6569222Abstract: Molybdenum trioxide or ammonium dimolybdate is reduced to molybdenum metal as it passes through an atmosphere of hydrogen in a multi-zoned thermally profiled rotating tube furnace.Type: GrantFiled: May 29, 2001Date of Patent: May 27, 2003Assignee: Harper International CorporationInventor: Edward V. McCormick