Patents by Inventor Wolfgang Alfred Hamm

Wolfgang Alfred Hamm 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: 8928187
    Abstract: An operating control device for adjusting the power of a heating device has a rotary knob that has an off position in which said rotary knob is deactivated, and a working position into which said knob can be brought to adjust the power. The working position is predetermined by a lock-in position, and the rotary knob can be rotated over a working angle of a rotation range in at least one direction of rotation from the working position counter to a counterforce that rises as the angle of rotation increases. The operating control device can detect the angle of rotation and uses a control system of the operating control device for adjusting the power. The control system is configured in such a manner that the power is adjusted more rapidly as the angle of rotation increases.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: January 6, 2015
    Assignee: E.G.O. Elektro-Gerätebau GmbH
    Inventors: Wolfgang Alfred Hamm, Martin Baier
  • Patent number: 8217292
    Abstract: An operating device for an electrical appliance comprises a control panel and an operating element arranged in the control panel for operation by rotary actuation. The operating element is mounted in a cup-like receptacle, at least one additional touch-sensitive switch being arranged in a region of the control panel adjacent to or around the operating element. Advantageously, this is a capacitive touch-sensitive switch with a capacitive sensor element.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: July 10, 2012
    Assignee: E.G.O. Elektro-Geraetebau GmbH
    Inventor: Wolfgang Alfred Hamm
  • Publication number: 20120042745
    Abstract: An operating control device for adjusting the power of a heating device has a rotary knob that has an off position in which said rotary knob is deactivated, and a working position into which said knob can be brought to adjust the power. The working position is predetermined by a lock-in position, and the rotary knob can be rotated over a working angle of a rotation range in at least one direction of rotation from the working position counter to a counterforce that rises as the angle of rotation increases. The operating control device can detect the angle of rotation and uses a control system of the operating control device for adjusting the power. The control system is configured in such a manner that the power is adjusted more rapidly as the angle of rotation increases.
    Type: Application
    Filed: August 8, 2011
    Publication date: February 23, 2012
    Applicant: E.G.O. Elektro-Geratebau GmbH
    Inventors: Wolfgang Alfred Hamm, Martin Baier
  • Patent number: 7943878
    Abstract: An operating device for an electrical appliance with a control panel has a control element for operation through rotary actuation arranged in the control panel, said control element being disposed and mounted in a receptacle behind the control panel. The receptacle has light-conducting and/or light transmitting material in the manner of a light guide, and is illuminated through an LED at a posterior end facing away from the control panel and with light apertures provided at another anterior end on the control panel around the control element extending forwardly beyond the control panel.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: May 17, 2011
    Assignee: E.G.O. Elektro-Geraetebau GmbH
    Inventor: Wolfgang Alfred Hamm
  • Patent number: 7868271
    Abstract: A control device for converting a control movement along a control path into a control signal has the control path corresponding to different control stages or control types. The control device has two measuring tracks with a linearly changing resistance associated with each track. In one embodiment, these measuring tracks are positioned concentric to each other in a semicircle. A voltage U, which is tapped via two opposite interconnected sliders, is applied to both measuring tracks at a junction point while the other junction point is connected to ground. If the detected values of the tapped voltages deviate from a corresponding stored value or pairs of values, there must be a fault, due to, for example a broken slider. This makes it possible to perform a test for determining the fault or a malfunctioning control device.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: January 11, 2011
    Assignee: E.G.O. Elektro-Geraetebau GmbH
    Inventors: Wolfgang Alfred Hamm, Martin Baier, Ralf Dorwarth
  • Publication number: 20100181181
    Abstract: An operating device for an electrical appliance comprises a control panel and an operating element arranged in the control panel for operation by rotary actuation. The operating element is mounted in a cup-like receptacle, at least one additional touch-sensitive switch being arranged in a region of the control panel adjacent to or around the operating element. Advantageously, this is a capacitive touch-sensitive switch with a capacitive sensor element.
    Type: Application
    Filed: January 20, 2010
    Publication date: July 22, 2010
    Inventor: Wolfgang Alfred Hamm
  • Publication number: 20100181175
    Abstract: An operating device for an electrical appliance with a control panel has a control element for operation through rotary actuation arranged in the control panel, said control element being disposed and mounted in a receptacle behind the control panel. The receptacle has light-conducting and/or light transmitting material in the manner of a light guide, and is illuminated through an LED at a posterior end facing away from the control panel and with light apertures provided at another anterior end on the control panel around the control element extending forwardly beyond the control panel.
    Type: Application
    Filed: January 20, 2010
    Publication date: July 22, 2010
    Inventor: Wolfgang Alfred Hamm
  • Publication number: 20100012647
    Abstract: The invention relates to an operating device for a stove top, the device comprising rotary operating parts that are rotatably mounted in a base. The parts have a protruding region as a signal means, the region rotating in a plane of the stove top or a stove top plate when the rotary operating part rotates. In said plane, the stove top has a distance sensor, which can detect the rotation of the protruding region by means of the variable distance and evaluate the same as a rotational actuation or rotational movement for operating the stove top.
    Type: Application
    Filed: September 11, 2009
    Publication date: January 21, 2010
    Inventors: Martin Baier, Wolfgang Alfred Hamm
  • Patent number: D593960
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: June 9, 2009
    Assignee: E.G.O. Elektro-Geraetebau GmbH
    Inventors: Roland Boss, Wolfgang Alfred Hamm, Günther Reimold