Patents by Inventor Christopher C. Langenfeld
Christopher C. Langenfeld 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: 12020798Abstract: A peristaltic pump, and related method, are disclosed that includes a cam shaft, a plunger-cam follower, a tube receiver, a spring, a plunger, a door, and a plunger lift lever. The cam shaft includes a plunger cam. The plunger-cam follower engages with the plunger cam of the cam shaft. The spring provides a bias and the plunger is biased toward the tube receiver by the spring. The plunger is coupled to the plunger-cam follower where expansion of the plunger cam along a radial angle intersecting the plunger-cam follower as the cam shaft rotates actuates the plunger away from the tube receiver. The door lever can be actuated between a first position and a second position. The plunger lift lever is coupled to the door lever to actuate the plunger away from the tube receiver when the door lever is actuated to the second position.Type: GrantFiled: May 26, 2022Date of Patent: June 25, 2024Assignee: DEKA Products Limited PartnershipInventors: Dean Kamen, John M. Kerwin, Colin H. Murphy, Christopher C. Langenfeld, Michael J. Slate, Michael S. Place, Larry B. Gray
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Publication number: 20240199444Abstract: A fluid vapor distillation apparatus. The apparatus includes a source fluid input, and an evaporator condenser apparatus. The evaporator condenser apparatus includes a substantially cylindrical housing and a plurality of tubes in the housing. The source fluid input is fluidly connected to the evaporator condenser and the evaporator condenser transforms source fluid into steam and transforms compressed steam into product fluid. Also included in the fluid vapor distillation apparatus is a heat exchanger fluidly connected to the source fluid input and a product fluid output. The heat exchanger includes an outer tube and at least one inner tube. Also included in the fluid vapor distillation apparatus is a regenerative blower fluidly connected to the evaporator condenser. The regenerative blower compresses steam, and the compressed steam flows to the evaporative condenser where compressed steam is transformed into product fluid. The fluid vapor distillation apparatus also includes a control system.Type: ApplicationFiled: January 18, 2024Publication date: June 20, 2024Inventors: Dean Kamen, Ryan K. LAROCQUE, Christopher C. LANGENFELD, Stephen M. Ent, Andrew A. SCHNELLINGER, Prashant Bhat, Stanley B. Smith, III, Otis L. Clapp
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Patent number: 12002561Abstract: A peristaltic pump, and related system method are provided. The peristaltic pump includes a cam shaft, first and second pinch-valve cams, first and second pinch-valve cam followers, a plunger cam, a plunger-cam follower, a tube receiver, and a spring-biased plunger. The first and second pinch-valve cams are coupled to the cam shaft. The first and second pinch-valve cam followers each engage the first and second pinch-valve cams, respectively. The plunger cam is coupled to the cam shaft. The plunger-cam follower engages the plunger cam. The tube receiver is configured to receive a tube. The spring-biased plunger is coupled to the plunger-cam follower such that the expansion of the plunger cam along a radial angle intersecting the plunger-cam follower as the cam shaft rotates pushes the plunger cam follower towards the plunger and thereby disengages the spring-biased plunger from the tube. A spring coupled to the spring-biased plunger biases the spring-biased plunger to apply the crushing force to the tube.Type: GrantFiled: March 30, 2022Date of Patent: June 4, 2024Assignee: DEKA Research & Development CorpInventors: Dean Kamen, John M. Kerwin, Colin H. Murphy, Larry B. Gray, Christopher C. Langenfeld, Michael J. Slate, Michael S. Place
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Publication number: 20240175835Abstract: A system for product water output. The system includes a controller, a first conductivity sensor in communication with the controller, a first product valve downstream from the first conductivity sensor and in communication with the controller, a second product valve downstream from the first product valve and in communication with the controller, a second conductivity sensor downstream from the second product valve and in communication with the controller, and a divert valve downstream from the first conductivity sensor and upstream from the first product valve and in communication with the controller.Type: ApplicationFiled: January 19, 2024Publication date: May 30, 2024Inventors: Ryan K. Larocque, Russel H. Beavis, Christopher C. LANGENFELD, Andrew A. SCHNELLINGER
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Patent number: 11980553Abstract: A prosthetic device. The prosthetic device may include a flexure cut and/or a sensor to detect movement in accordance with a degree of movement. In an embodiment, the sensor may be disposed within the flexure cut. Other embodiments include at least one wire configured to connect a sensor located in a distal portion to a proximal portion, while annularly traversing a joint.Type: GrantFiled: June 4, 2021Date of Patent: May 14, 2024Assignee: DEKA Products Limited PartnershipInventors: N. Christopher Perry, Keith D. Violette, Grant A. Peret, David D. B. Cannan, Christopher C. Langenfeld, Jacob P. Laplante, Thomas A. Doyon
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Patent number: 11981030Abstract: A force transmission system as part of a surgical system which may be configured to be a minimally invasive and/or computer assisted surgical system. Operation of the system may be controlled by transmission of a force from a first section to a second section of the system. The first section and the second section may be separated by a partition or a barrier. The first section may be a non-sterile section and the second section may be a sterile section of the surgical system.Type: GrantFiled: August 26, 2021Date of Patent: May 14, 2024Assignee: DEKA Products Limited PartnershipInventors: Christopher C. Langenfeld, Michael J. Slate, Prashant Bhat, Dirk A. van der Merwe, David D. B. Cannan, Keith D. Violette
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Publication number: 20240115804Abstract: A pump for pumping fluid includes a tube platen, a plunger, a bias member, inlet and outlet valves, an actuator mechanism, a position sensor, and a processor. The plunger is configured for actuation toward and away from the infusion-tube when the tube platen is disposed opposite to the plunger. The tube platen can hold an intravenous infusion tube. The bias member is configured to urge the plunger toward the tube platen.Type: ApplicationFiled: October 10, 2023Publication date: April 11, 2024Inventors: Dean KAMEN, John M. Kerwin, Colin H. Murphy, Jonathan Parker, Daniel F. Pawlowski, Dirk A. Van Der Merwe, Larry B. Gray, Christopher C. Langenfeld, Michael S Place, Michael J. Slate
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Publication number: 20240115805Abstract: An apparatus, system and method for regulating fluid flow are disclosed. An apparatus for infusing fluid into a patient infusion apparatus includes a drip-chamber seat configured to receive a drip chamber; a tube seat configured to receive a tube fluidly coupled to the drip chamber, the tube including a plurality of conduits for fluid flow therethrough; a plunger configured to engage with the tube; and a user actuator configured to actuate the plunger.Type: ApplicationFiled: December 5, 2023Publication date: April 11, 2024Inventors: Christopher C. Langenfeld, Daniel B. Finnegan, Dean Kamen, James M. Scott
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Patent number: 11939566Abstract: A system and method for growing and maintaining biological material including producing a protein associated with the tissue, selecting cells associated with the tissue, expanding the cells, creating at least one tissue bio-ink including the expanded cells, printing the at least one tissue bio-ink in at least one tissue growth medium mixture, growing the tissue from the printed at least one tissue bio-ink, and maintaining viability of the tissue.Type: GrantFiled: September 2, 2021Date of Patent: March 26, 2024Assignee: DEKA Products Limited PartnershipInventors: Christopher C. Langenfeld, David D. B. Cannan, Dirk A. van der Merwe, Dean Kamen, Jason A. Demers, Frederick Morgan, Timothy D. Moreau, Brian D. Tracey, Matthew Ware, Richard J. Lanigan, Michael A. Baker, David Blumberg, Jr., Richard E. Gautney, Derek G. Kane, Dane Fawkes, Thomas J. Bollenbach, Michael C. Tilley, Stuart A. Jacobson, John F. Mannisto
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Patent number: 11939237Abstract: A fluid vapor distillation system. The system includes a control system for controlling a fluid vapor distillation apparatus including a blow down controller for controlling a blow down valve, a source flow controller for controlling a source flow valve, and a blow down level sensor in communication with a blow down controller and a source flow controller, the blow down level sensor sends signals related to the blow down level to the blow down controller and the source flow controller indicative of the blow down level, wherein the source flow controller actuates the source flow valve based at least on the blow down level sensor signals, and wherein the blow down controller actuates the blow down valve based at least on the blow down level sensor signals, whereby the blow down level and the source flow level are maintained using the blow down level sensor signals as input.Type: GrantFiled: August 31, 2020Date of Patent: March 26, 2024Assignee: DEKA Products Limited PartnershipInventors: Dean Kamen, Ryan K. LaRocque, Christopher C. Langenfeld, Andrew A. Schnellinger, Prashant Bhat, Otis L. Clapp, Stanley B. Smith, III, Stephen M. Ent
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Patent number: 11926175Abstract: An autonomous delivery vehicle having one or more caster wheels that may be held off the ground for a portion of the time that the autonomous delivery vehicle travels. Each caster wheel is mounted in a pivot with a centering mechanism to hold the caster wheels in a design orientation. The caster wheel in the design orientation maximizes the view of forward-looking sensors on the autonomous delivery vehicle. The centering mechanism uses magnetic attraction/repulsion to center the caster wheel. The centering mechanism may incorporate a plurality of permanent magnets and or electro-magnets.Type: GrantFiled: August 3, 2020Date of Patent: March 12, 2024Assignee: DEKA Products Limited PartnershipInventor: Christopher C. Langenfeld
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Patent number: 11927457Abstract: An autonomous vehicle having sensors advantageously varied in capabilities, advantageously positioned, and advantageously impervious to environmental conditions. A system executing on the autonomous vehicle that can receive a map including, for example, substantially discontinuous surface features along with data from the sensors, create an occupancy grid based upon the map and the data, and change the configuration of the autonomous vehicle based upon the type of surface on which the autonomous vehicle navigates. The device can safely navigate surfaces and surface features, including traversing discontinuous surfaces and other obstacles.Type: GrantFiled: July 10, 2020Date of Patent: March 12, 2024Assignee: DEKA Products Limited PartnershipInventors: Dirk A. Van Der Merwe, Arunabh Mishra, Christopher C. Langenfeld, Michael J. Slate, Christopher J. Principe, Gregory J. Buitkus, Justin M. Whitney, Raajitha Gummadi, Derek G. Kane, Emily A. Carrigg, Patrick Steele, Benjamin V. Hersh, Fnu G Siva Perumal, David Carrigg, Daniel F. Pawlowski, Yashovardhan Chaturvedi, Kartik Khanna
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Patent number: 11884555Abstract: A fluid vapor distillation apparatus. The apparatus includes a source fluid input, and an evaporator condenser apparatus. The evaporator condenser apparatus includes a substantially cylindrical housing and a plurality of tubes in the housing. The source fluid input is fluidly connected to the evaporator condenser and the evaporator condenser transforms source fluid into steam and transforms compressed steam into product fluid. Also included in the fluid vapor distillation apparatus is a heat exchanger fluidly connected to the source fluid input and a product fluid output. The heat exchanger includes an outer tube and at least one inner tube. Also included in the fluid vapor distillation apparatus is a regenerative blower fluidly connected to the evaporator condenser. The regenerative blower compresses steam, and the compressed steam flows to the evaporative condenser where compressed steam is transformed into product fluid. The fluid vapor distillation apparatus also includes a control system.Type: GrantFiled: February 12, 2021Date of Patent: January 30, 2024Assignee: DEKA Products Limited PartnershipInventors: Dean Kamen, Ryan K. LaRocque, Christopher C. Langenfeld, Stephen M. Ent, Andrew A. Schnellinger, Prashant Bhat, Stanley B. Smith, III, Otis L. Clapp
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Patent number: 11885760Abstract: A system for product water output. The system includes a controller, a first conductivity sensor in communication with the controller, a first product valve downstream from the first conductivity sensor and in communication with the controller, a second product valve downstream from the first product valve and in communication with the controller, a second conductivity sensor downstream from the second product valve and in communication with the controller, and a divert valve downstream from the first conductivity sensor and upstream from the first product valve and in communication with the controller.Type: GrantFiled: April 6, 2021Date of Patent: January 30, 2024Assignee: DEKA Products Limited PartnershipInventors: Ryan Keith LaRocque, Russell H. Beavis, Christopher C. Langenfeld, Andrew A. Schnellinger
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Publication number: 20230420101Abstract: A peristaltic pump having at least first, second, and third stages is provided. The peristaltic pump includes a plunger, inlet and outlet valves, a spring, and an actuator. The plunger actuates toward and away from a tube, the inlet valve is upstream of the plunger, the outlet valve is downstream of the plunger, the spring biases the plunger toward the tube, and the actuator mechanically engages and disengages from the plunger. In the first stage, the inlet valve is opened and the plunger is actuated from the tube, in the second stage, the inlet valve is closed, the plunger is actuated toward the tube, and the actuator is mechanically disengaged from the plunger, and in the third stage, the outlet valve is opened. In the third stage or in a fourth stage, the actuator actuates the plunger toward the tube to discharge fluid downstream past the outlet valve.Type: ApplicationFiled: September 12, 2023Publication date: December 28, 2023Inventors: Dean Kamen, John M. Kerwin, Colin H. Murphy, Christopher C. Langenfeld, Michael J. Slate, Michael S. Place, Larry B. Gray
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Patent number: 11839741Abstract: An apparatus, system and method for regulating fluid flow are disclosed. An apparatus for infusing fluid into a patient infusion apparatus includes a drip-chamber seat configured to receive a drip chamber; a tube seat configured to receive a tube fluidly coupled to the drip chamber, the tube including a plurality of conduits for fluid flow therethrough; a plunger configured to engage with the tube; and a user actuator configured to actuate the plunger.Type: GrantFiled: July 24, 2020Date of Patent: December 12, 2023Inventors: Christopher C. Langenfeld, Daniel B. Finnegan, Dean Kamen, James M. Scott
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Publication number: 20230382423Abstract: A system and method for estimating free space including applying a machine learning model to camera images of a navigation area, where the navigation area is broken into cells, synchronizing point cloud data from the navigation area with the processed camera images, and associating probabilities that the cell is occupied and object classifications of objects that could occupy the cells with cells in the navigation area based on sensor data, sensor noise, and the machine learning model.Type: ApplicationFiled: August 11, 2023Publication date: November 30, 2023Inventors: Raajitha GUMMADI, Christopher C. Langenfeld, Michael J. Slate, Christopher J. Principe
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Patent number: 11826681Abstract: A fluid vapor distillation apparatus. The apparatus includes a source fluid input, and an evaporator condenser apparatus. The evaporator condenser apparatus includes a substantially cylindrical housing and a plurality of tubes in the housing. The source fluid input is fluidly connected to the evaporator condenser and the evaporator condenser transforms source fluid into steam and transforms compressed steam into product fluid. Also included in the fluid vapor distillation apparatus is a heat exchanger fluidly connected to the source fluid input and a product fluid output. The heat exchanger includes an outer tube and at least one inner tube. Also included in the fluid vapor distillation apparatus is a regenerative blower fluidly connected to the evaporator condenser. The regenerative blower compresses steam, and the compressed steam flows to the evaporative condenser where compressed steam is transformed into product fluid.Type: GrantFiled: March 12, 2021Date of Patent: November 28, 2023Assignee: DEKA Products Limited PartneshipInventors: Dean Kamen, Prashant Bhat, Ryan K. LaRocque, Otis L. Clapp, Andrew A. Schnellinger, Christopher C. Langenfeld, Stanley B. Smith, III
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Publication number: 20230360763Abstract: A peristaltic pump includes a plunger-cam follower, a tube receiver, a spring-biased plunger, a spring, a position sensor, and a processor. The plunger-cam follower engages the plunger cam to follow the plunger cam and to disengage from the plunger cam. The spring-biased plunger is coupled to the plunger-cam follower and the spring biases the spring-biased plunger toward the tube receiver. The position sensor determines a position of the spring-biased plunger when the plunger-cam follower is disengaged from the plunger came. The processor estimates fluid flow utilizing at least the position of the spring-biased plunger as indicated by the position sensor when the plunger-cam follower is disengaged from the plunger cam and the spring biases the spring-biased plunger against the tube.Type: ApplicationFiled: July 14, 2023Publication date: November 9, 2023Inventors: Dean Kamen, John M. Kerwin, Colin H. Murphy, Christopher C. Langenfeld, Michael J. Slate, Michael S. Place, Larry B. Gray
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Patent number: D1008101Type: GrantFiled: July 12, 2021Date of Patent: December 19, 2023Assignee: DEKA Products Limited PartnershipInventors: Christopher C. Langenfeld, Michael J. Slate, Dirk A. van der Merwe, Sooshin Choi, Dean Kamen