Patents by Inventor Stephen J. Hinterlong
Stephen J. Hinterlong 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: 11891309Abstract: A method of controlling cooling water treatment at a cooling tower may involve measuring operating data of one or more downstream heat exchangers that receive cooling water from the cooling tower. For example, the inlet and outlet temperatures of both the hot and cold streams of a downstream heat exchanger may be measured, optionally along with a flow rate of the cooling water stream passing through the heat exchanger. Data from the streams passing through the heat exchanger may be used to determine a heat transfer efficiency for the heat exchanger. The heat transfer efficiency can be trended over a period of time and changes in the trend detected to identify cooling water fouling issues. A chemical additive selected to reduce, eliminate, or otherwise control the cooling water fouling can be controlled based on the changes in heat transfer efficiency detected at the downstream heat exchanger.Type: GrantFiled: September 13, 2018Date of Patent: February 6, 2024Assignee: Ecolab USA Inc.Inventors: Anupam Prakash, Stephen J. Hinterlong, Hung-Ting Chen, Craig Myers, Walter H. Goodman, Daniel Meier
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Patent number: 11885747Abstract: An optical sensor may include a housing, a printed circuit board, an optical emitter, and an optical detector. The housing can define a channel configured to receive a transparent tubing line through which fluid can flow during operation. The housing can have multiple optical pathways, including a primary optical pathway transecting the channel, a light emission optical pathway, and a light detection optical pathway. The optical emitter and optical detector can each be mounted on the printed circuit board. Further, the housing may be positioned on the printed circuit board with the optical emitter aligned to emit light into the light emission optical pathway and the optical detector aligned to receive light from the light detection optical pathway.Type: GrantFiled: February 19, 2021Date of Patent: January 30, 2024Assignee: Ecolab USA Inc.Inventors: Brandon Matthew Davis, Stephen J. Hinterlong, David Alan Ambrose
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Publication number: 20230288153Abstract: A method of controlling cooling water treatment may involve measuring operating data of one or more downstream heat exchangers that receive cooling water from the cooling tower. For example, the inlet and outlet temperatures of both the hot and cold streams of a downstream heat exchanger may be measured. Data from the streams passing through the heat exchanger may be used to determine a heat transfer efficiency for the heat exchanger. The heat transfer efficiency can be trended over a period of time and changes in the trend detected to identify cooling water fouling issues. Multiple potential causes of the perceived fouling issues can be evaluated to determine a predicted cause. A chemical additive selected to reduce, eliminate, or otherwise control the cooling water fouling can be controlled based on the predicted cause of the fouling.Type: ApplicationFiled: May 17, 2023Publication date: September 14, 2023Inventors: Craig Myers, Anupam Prakash, Ravindra Raghavapudi, Steven Kramarczyk, Stephen J. Hinterlong, Daniel Meier, Jorvic Vital
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Patent number: 11668535Abstract: A method of controlling cooling water treatment may involve measuring operating data of one or more downstream heat exchangers that receive cooling water from the cooling tower. For example, the inlet and outlet temperatures of both the hot and cold streams of a downstream heat exchanger may be measured. Data from the streams passing through the heat exchanger may be used to determine a heat transfer efficiency for the heat exchanger. The heat transfer efficiency can be trended over a period of time and changes in the trend detected to identify cooling waterfouling issues. Multiple potential causes of the perceived fouling issues can be evaluated to determine a predicted cause. A chemical additive selected to reduce, eliminate, or otherwise control the cooling water fouling can be controlled based on the predicted cause of the fouling.Type: GrantFiled: November 9, 2018Date of Patent: June 6, 2023Assignee: Ecolab USA Inc.Inventors: Craig Myers, Anupam Prakash, Ravindra Raghavapudi, Steven Kramarczyk, Stephen J. Hinterlong, Daniel Meier, Jorvic Vital
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Publication number: 20210262942Abstract: An optical sensor may include a housing, a printed circuit board, an optical emitter, and an optical detector. The housing can define a channel configured to receive a transparent tubing line through which fluid can flow during operation. The housing can have multiple optical pathways, including a primary optical pathway transecting the channel, a light emission optical pathway, and a light detection optical pathway. The optical emitter and optical detector can each be mounted on the printed circuit board. Further, the housing may be positioned on the printed circuit board with the optical emitter aligned to emit light into the light emission optical pathway and the optical detector aligned to receive light from the light detection optical pathway.Type: ApplicationFiled: February 19, 2021Publication date: August 26, 2021Inventors: Brandon Matthew Davis, Stephen J. Hinterlong, David Alan Ambrose
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Publication number: 20190145722Abstract: A method of controlling cooling water treatment may involve measuring operating data of one or more downstream heat exchangers that receive cooling water from the cooling tower. For example, the inlet and outlet temperatures of both the hot and cold streams of a downstream heat exchanger may be measured. Data from the streams passing through the heat exchanger may be used to determine a heat transfer efficiency for the heat exchanger. The heat transfer efficiency can be trended over a period of time and changes in the trend detected to identify cooling water fouling issues. Multiple potential causes of the perceived fouling issues can be evaluated to determine a predicted cause. A chemical additive selected to reduce, eliminate, or otherwise control the cooling water fouling can be controlled based on the predicted cause of the fouling.Type: ApplicationFiled: November 9, 2018Publication date: May 16, 2019Inventors: Craig Myers, Anupam Prakash, Ravindra Raghavapudi, Steven Kramarczyk, Stephen J. Hinterlong, Daniel Meier, Jorvic Vital
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Publication number: 20190084841Abstract: A method of controlling cooling water treatment at a cooling tower may involve measuring operating data of one or more downstream heat exchangers that receive cooling water from the cooling tower. For example, the inlet and outlet temperatures of both the hot and cold streams of a downstream heat exchanger may be measured, optionally along with a flow rate of the cooling water stream passing through the heat exchanger. Data from the streams passing through the heat exchanger may be used to determine a heat transfer efficiency for the heat exchanger. The heat transfer efficiency can be trended over a period of time and changes in the trend detected to identify cooling water fouling issues. A chemical additive selected to reduce, eliminate, or otherwise control the cooling water fouling can be controlled based on the changes in heat transfer efficiency detected at the downstream heat exchanger.Type: ApplicationFiled: September 13, 2018Publication date: March 21, 2019Inventors: Anupam Prakash, Stephen J. Hinterlong, Hung-Ting Chen, Craig Myers, Walter H. Goodman, Daniel Meier
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Patent number: 5394498Abstract: A fiber optical array with precision fiber and positioning and a process for manufacturing such an array. The position of the ends of the optical fibers depends upon placement within a target that has been lithographed using highly precise lithography similar to that used in VLSI integrated circuits. The placement of an end with its core within its target is performed with the aid of microscopes and micro-manipulators. Once an end is in the proper location, ultraviolet curable adhesive is used to permanently fix its position precisely. Arrays having positional precision to within 1 micrometer are achievable by this invention.Type: GrantFiled: November 5, 1993Date of Patent: February 28, 1995Assignee: AT&T Corp.Inventors: Stephen J. Hinterlong, Robert A. Novotny, Jose M. Sasian-Alvarado
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Patent number: 5291324Abstract: An exemplary packet processing apparatus where a large number of comparisons can be made concurrently in bit-parallel fashion by partitioning the comparison functionality to two optoelectronic integrated circuits, and interconnecting the two circuits using free space optics. Illustratively, different embodiments are used to perform one-to-many or many-to-one comparisons by developing multiple copies of one value for concurrent comparison with many possible values. The invention is more generally applicable to other comparison applications where one-to-many or many-to-one comparisons are made.Type: GrantFiled: November 24, 1992Date of Patent: March 1, 1994Assignee: AT&T Bell LaboratoriesInventor: Stephen J. Hinterlong
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Patent number: 5077483Abstract: A reduced-blocking system where a perfect shuffle equivalent network having a plurality of node stages successively interconnected by link stages, is advantageously combined with expansion before the node stages and/or concentration after the node stages in a manner allowing the design of a system with arbitrarily low or zero blocking probability. An illustrative photonic system implementation uses free-space optical apparatus to effect a low loss, crossover interconnection of two-dimensional arrays of switching nodes comprising, for example, symmetric self electro-optic effect devices (S-SEEDs). Several low loss beam conbination techniques are used to direct multiple arrays of beams to an S-SEED array, and to redirect a reflected output beam array to a subsequent node stage.Type: GrantFiled: May 8, 1989Date of Patent: December 31, 1991Assignee: AT&T Bell LaboratoriesInventors: Thomas J. Cloonan, Stephen J. Hinterlong, Harvard S. Hinton, Frank K. Hwang, Jurgen Jahns, Jack L. Jewell, Anthony L. Lentine, Frederick B. McCormick, Jr., David A. B. Miller, Miles J. Murdocca, Michael E. Prise, Gaylord W. Richards