Patents by Inventor Carl Hartman

Carl Hartman 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).

  • Publication number: 20240118771
    Abstract: A proximity sensor including a structure suspending at least one lens above a circuit board, light emitters operable to project light beams through the lens along a common projection plane, light detectors operable to detect amounts of light arriving through the lens at the detector, wherein an object in the projection plane reflects light from an emitter to one or more of the detectors, and wherein each emitter-detector pair, including one of the emitters and one of the detectors, when synchronously activated, is expected to generate a greater detection signal at the activated detector than the other detectors, were they to be synchronously activated with any of the emitters, when the object is located at a specific 2D location in the projection plane corresponding to the emitter-detector pair, and a processor identifying gestures performed by the object based on amounts of light detected by the detector of each emitter-detector pair.
    Type: Application
    Filed: December 7, 2023
    Publication date: April 11, 2024
    Inventors: Stefan Johannes Holmgren, Jan Tomas Hartman, Tom Richard Berglind, Lars Bertil Sparf, Jonas Daniel Justus Hjelm, Jon Elis Gõsta Karlsson, Per Carl Sture Rosengren, Gunnar Martin Frõjdh, Joseph Shain, Xiatao Wang, Clarence Ray King, III, Oscar Ritzén Praglowski de Radwan
  • Publication number: 20230383789
    Abstract: A wear resistant bearing system includes an inner member that has an internal core and a bearing surface which has a 50 Rockwell C scale hardness or greater. The inner member has a chemical composition that is uniform throughout the internal core and the bearings surface. The wear resistant bearing system includes an outer member that partially surrounds the inner member and includes a receiving surface that has liner system adhered thereto. The liner system includes a wear resistant matrix that has one or more reinforcing fiber systems and has one or more lubricative fibers system dispersed in the wear resistant matrix. The liner system has a wear surface that has portions of both the reinforcing fiber system and the lubricative fiber system. The wear surface is continuous.
    Type: Application
    Filed: May 24, 2023
    Publication date: November 30, 2023
    Applicant: Roller Bearing Company of America, Inc.
    Inventors: Michael Decker, Frank Adams, Carl Hartman, Jack Kuzminsky, Ryan Meeks
  • Patent number: 8797001
    Abstract: The invention relates to a capacitor charger system (100) comprising a capacitor charger module (110), an isolated acquisition module (120), and a digital control module (130). The isolated acquisition module (120) is configured for sampling an output voltage level of said capacitor charger module (110). The digital control module (130) is connected to the isolated acquisition module (120) via a bi-directional link and connected to the capacitor charger module (110) via a control signal interface. The digital control module (130) is configured for generating control signal information and synchronization signal information based on data representative of sampled output voltage levels received via the bi-directional link from the isolated acquisition module.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: August 5, 2014
    Assignee: Scandinova Systems AB
    Inventors: Klas Elmqvist, Carl Hartman, Magnus Graas, Andreas Wickström, Jonas Gustafsson, Jan Lundgren, Walter Frederick John Crewson
  • Publication number: 20120086410
    Abstract: The invention relates to a capacitor charger system (100) comprising a capacitor charger module (110), an isolated acquisition module (120), and a digital control module (130). The isolated acquisition module (120) is configured for sampling an output voltage level of said capacitor charger module (110). The digital control module (130) is connected to the isolated acquisition module (120) via a bi-directional link and connected to the capacitor charger module (110) via a control signal interface. The digital control module (130) is configured for generating control signal information and synchronization signal information based on data representative of sampled output voltage levels received via the bi-directional link from the isolated acquisition module.
    Type: Application
    Filed: June 30, 2009
    Publication date: April 12, 2012
    Applicant: Scandinova Systems AB
    Inventors: Klas Elmqvist, Carl Hartman, Magnus Graas, Andreas Wickström, Jonas Gustafsson, Jan Lundgren, Walter Frederick John Crewson
  • Patent number: 5708555
    Abstract: An improved surge arrester includes metal oxide varistors in series with spark gap assemblies arranged such that the MOV elements conduct the low magnitude, steady-state current through the arrester along a path that is separate and distinct from the path through which impulse current is conducted during an overvoltage.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: January 13, 1998
    Assignee: Cooper Industries, Inc.
    Inventors: Jonathan J. Woodworth, Jeffrey Joseph Kester, Thomas Carl Hartman