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).

  • Patent number: 9797341
    Abstract: An external combustion engine including a burner element, a heater head, a piston cylinder containing a piston, a cooler and a crankcase. The crankcase includes a crankshaft, a piston rod connected to the piston, a drive mechanism for converting the linear motion of the piston rod to rotary motion of the crankshaft and a linear cross-head bearing that is connected rigidly to the piston rod at one end and to the drive mechanism at the other end. Also the external combustion engine includes a piston clearance seal and a piston rod seal unit that has floating rod seals. The piston includes a inner dome to reduce axial heat transfer via radiation and convection.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: October 24, 2017
    Assignee: New Power Concepts LLC
    Inventors: Christopher C. Langenfeld, Prashant Bhat, Mithun R. Bhat, Dean Kamen
  • Patent number: 9797340
    Abstract: A Stirling cycle machine. The machine includes at least one rocking drive mechanism which includes: a rocking beam having a rocker pivot, at least one cylinder and at least one piston. The piston is housed within a respective cylinder and is capable of substantially linearly reciprocating within the respective cylinder. Also, the drive mechanism includes at least one coupling assembly having a proximal end and a distal end. The linear motion of the piston is converted to rotary motion of the rocking beam. Also, a crankcase housing the rocking beam and housing a first portion of the coupling assembly is included. The machine also includes a working space housing the at least one cylinder, the at least one piston and a second portion of the coupling assembly. An airlock is included between the workspace and the crankcase and a seal is included for sealing the workspace from the airlock and crankcase.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: October 24, 2017
    Assignee: New Power Concepts LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld, Prashant Bhat, Michael G. Norris, Stanley B. Smith, III, Christopher M. Werner
  • Publication number: 20170266378
    Abstract: 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: Application
    Filed: May 2, 2017
    Publication date: September 21, 2017
    Inventors: 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
  • Publication number: 20170268497
    Abstract: A peristaltic pump includes a cam shaft, a plunger-cam follower, a tube receiver, a spring-biased plunger, a spring, a position sensor, and a processor. The cam shaft has a plunger cam. 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 cam and the spring applies a force from the spring-biased plunger against the tube. The processor estimates fluid flow utilizing 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 applies the force from the spring-biased plunger against the tube.
    Type: Application
    Filed: June 7, 2017
    Publication date: September 21, 2017
    Inventors: Dean Kamen, John M. Kerwin, Colin H. Murphy, Christopher C. Langenfeld, Michael J. Slate, Michael S. Place, Larry B. Gray
  • Patent number: 9752532
    Abstract: A Stirling cycle machine. The machine includes at least one rocking drive mechanism which includes: a rocking beam having a rocker pivot, at least one cylinder and at least one piston. The piston is housed within a respective cylinder and is capable of substantially linearly reciprocating within the respective cylinder. Also, the drive mechanism includes at least one coupling assembly having a proximal end and a distal end. The proximal end is connected to the piston and the distal end is connected to the rocking beam by an end pivot. The linear motion of the piston is converted to rotary motion of the rocking beam. Also, a crankcase housing the rocking beam and housing a first portion of the coupling assembly is included. A crankshaft coupled to the rocking beam by way of a connecting rod is also included. The rotary motion of the rocking beam is transferred to the crankshaft.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: September 5, 2017
    Assignee: New Power Concepts LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld, Prashant Bhat, Stanley B. Smith, III
  • Patent number: 9730731
    Abstract: An external distraction apparatus for performing a craniofacial distraction is disclosed. The external distraction apparatus may comprise a stationary member. The stationary member may be configured to be affixed to a head of a patient. The external distraction apparatus may also comprise laterally disposed distractors. The laterally disposed distractors may extend inferiorly from the stationary member and be moveable relative to the stationary member. The external distraction apparatus may comprise a motor and controller. The motor may be powered with the controller to perform a craniofacial distraction in an automated fashion.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: August 15, 2017
    Assignee: DEKA Products Limited Partnership
    Inventors: Christopher C. Langenfeld, Stanley B. Smith, III, David E. Altobelli
  • Publication number: 20170221383
    Abstract: A modular electro-mechanical agent having a plurality of modules including mechanical and electrical components, that can be constructed to complete at least one pre-determined task and/or contribute in performing the at least one pre-determined task. The electro-mechanical agent can include extension modules and can be altered as per user preference to add, eliminate or modify any features of the agent for completing and/or participating in a plurality of pre-determined tasks.
    Type: Application
    Filed: January 30, 2017
    Publication date: August 3, 2017
    Inventors: Daniel Scott Karol, Jason Michael Overson, William Daniel Hunt, Jacob William Scarpaci, Andrew Stephen Coll, Gregory Needel, Yuuki Gil Crowley, Christopher C. Langenfeld, Michael J. Slate, Prashant Bhat, Grant A. Peret
  • Publication number: 20170184529
    Abstract: 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: Application
    Filed: March 13, 2017
    Publication date: June 29, 2017
    Inventors: Ryan Keith LaRocque, Russell H. Beavis, Christopher C. Langenfeld, Andrew A. Schnellinger
  • Patent number: 9677555
    Abstract: 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: Grant
    Filed: December 21, 2012
    Date of Patent: June 13, 2017
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, John M. Kerwin, Colin H. Murphy, Larry B. Gray, Christopher C. Langenfeld, Michael J. Slate, Michael S. Place
  • Patent number: 9675756
    Abstract: 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: Grant
    Filed: March 15, 2013
    Date of Patent: June 13, 2017
    Assignee: DEKA Products Limited Partnership
    Inventors: 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
  • Patent number: 9610518
    Abstract: 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: Grant
    Filed: July 13, 2012
    Date of Patent: April 4, 2017
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, Ryan K. LaRocque, Christopher C. Langenfeld, Stephen M. Ent, Andrew A. Schnellinger, Prashant Bhat, Stanley B. Smith, III, Otis L. Clapp
  • Patent number: 9604858
    Abstract: 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: Grant
    Filed: July 26, 2013
    Date of Patent: March 28, 2017
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, Ryan K. LaRocque, Christopher C. Langenfeld, Andrew A. Schnellinger, Prashant Bhat, Otis L. Clapp, Stanley B. Smith, III, Stephen M. Ent
  • Patent number: 9593809
    Abstract: 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: Grant
    Filed: July 26, 2013
    Date of Patent: March 14, 2017
    Assignee: DEKA Products Limited Partnership
    Inventors: Ryan K. LaRocque, Russell H. Beavis, Christopher C. Langenfeld, Andrew A. Schnellinger
  • Publication number: 20170014998
    Abstract: 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: Application
    Filed: July 15, 2016
    Publication date: January 19, 2017
    Inventors: Christopher C. Langenfeld, Michael J. Slate, Prashant Bhat, Dirk A. van der Merwe, David D.B. Cannan, Keith D. Violette
  • Patent number: 9534561
    Abstract: An external combustion engine is disclosed. The external combustion engine includes a working fluid and a burner element, at least one heater head defining a working space, at least one piston cylinder containing a piston, a cooler, a crankcase including a crankshaft for producing an engine output, a rocking beam, a piston rod connected to the piston, a rocking beam driven by the piston rod, and a connecting rod connected at a first end to the rocking beam and at a second end to a crankshaft to convert rotary motion of the rocking beam to rotary motion of the crankshaft. The external combustion engine also includes an airlock space separating the crankcase and the working space for maintaining a pressure differential between the crankcase housing and the working space housing and an airlock pressure regulator connected between the crankcase and one of the airlock space and working space.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: January 3, 2017
    Assignee: New Power Concepts LLC
    Inventors: Dean Kamen, Christopher C. Langenfeld, Prashant Bhat, Michael G. Norris
  • Publication number: 20160377025
    Abstract: A thermal energy recovery system. The system includes a Stirling engine having a burner thermal energy output. Also, a superheater mechanism for heating the thermal energy output and an expansion engine coupled to a generator. The expansion engine converts the thermal energy output from the burner to mechanical energy output. The generator converts mechanical energy output from the expansion engine to electrical energy output. The expansion engine may also includes vapor output. Some embodiments of the system further include a condenser for condensing the vapor output, a pump for pumping the vapor output and a boiler in fluid communication with the pump. The pump pumps the vapor output to the boiler.
    Type: Application
    Filed: September 12, 2016
    Publication date: December 29, 2016
    Inventors: Dean Kamen, Christopher C. Langenfeld
  • Patent number: 9488158
    Abstract: A wind turbine is disclosed. The wind turbine includes comprising an inflatable portion comprising one or more blades and a device for rotatably driving the inflatable portion at a predetermined rate for a predetermined time.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: November 8, 2016
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, Christopher C. Langenfeld, Stanley B. Smith, III, Andrew A. Schnellinger, George B. Lanigan
  • Publication number: 20160317326
    Abstract: A prosthetic arm apparatus including a plurality of segments that provide a user of the prosthetic arm apparatus with substantially the same movement capability and function as a human arm. The segments are connectable to one another and connectable to a prosthetic support apparatus that may be adorned by the user. Each segment of the plurality of segments provides a portion of the movement capability, enabling the plurality of connected segments connected to the harness mount to provide substantially the same movement capability as that lacking in the user.
    Type: Application
    Filed: July 18, 2016
    Publication date: November 3, 2016
    Inventors: Christopher O. Evans, N. Christopher Perry, Dirk Albertus van der Merwe, Christopher C. Langenfeld, John Matthew Kerwin, Stewart M. Coulter, Stanley B. Smith, III, Keith David Violette, Steven W. Nickson, Thomas S. Schnellinger, Alexander H. Muller, Gerald Michael Guay
  • Patent number: 9470209
    Abstract: An aerodynamic brake assembly for use with an airfoil such as the blade of a wind turbine rotor comprises deployable upper and/or lower spoiler plates incorporated in or attached to the airfoil. The spoiler plates can deploy under the influence of centrifugal forces when the rotating airfoil or rotor blade reaches a pre-determined rotational speed. The aerodynamic brake assembly may be integrated within the airfoil or attached to the tip of the airfoil such that, when not deployed, the upper and lower spoiler plates have a profile that approximately conforms to the profile of the part of the airfoil to which it the brake assembly is attached. Failsafe deployment of the spoiler plates can occur either upon loss of power to the mechanism, or when the centrifugal force associated with an overspeed condition of the rotor overcomes the holding force of an electromagnet or solenoid.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: October 18, 2016
    Assignee: DEKA Products Limited Partnership
    Inventors: Dean Kamen, Christopher C. Langenfeld, Stanley B. Smith, Christopher M. Werner
  • Patent number: D799025
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: October 3, 2017
    Assignee: DEKA Products Limited Partnership
    Inventors: Matthew J. Johnson, Christopher C. Langenfeld, Michael J. Slate, Michael S. Place, David E. Collins