Patents by Inventor Walter Obergfell

Walter Obergfell 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: 4473766
    Abstract: A stator comprises a one-piece U-shaped stator sheet having a pair of elongate parallel legs. The legs form pole shoe bridges at their front ends for their reception of a driven motor. At least one of the pole shoe bridges interconnects the legs adjacent their front ends. A coil-carrying bobbin is mounted on one of the legs, the length of the wound coil being longer than its diameter. A separate yoke sheet is fastened to the legs adjacent rear ends thereof to secure the bobbin on the leg. The stator is formed by first stamping-out a stamping which includes the parallel legs and the yoke, with the yoke being integrally attached to the legs by means of webs. After the stamping undergoes the usual pretreatment, the yoke sheet is separated from the legs, whereupon the coil bobbin is slipped onto the leg from the rear. Then, the yoke sheet is secured to the rear ends of the legs to prevent removal of the coil bobbin.
    Type: Grant
    Filed: December 16, 1982
    Date of Patent: September 25, 1984
    Assignee: Gebruder Junghans GmbH
    Inventors: Walter Obergfell, Hans Flaig, Robert Wolber, Max Stubner
  • Patent number: 4465378
    Abstract: A clock movement comprises front and rear housing shells. A support plate is mounted within and between the shells. A gear movement is mounted on a rear side of the support plate and faces the rear shell. A hands movement is arranged on a front side of the support plate and is drivingly connected to the gear movement. A circuit board is connected to the support plate. A motor for the gear movement comprises a stator sheet and a coil bobbin. The stator sheet is fastened in engaging relationship to a rear side of the support plate adjacent a rotor opening in the stator sheet. The coil bobbin is mounted on the stator sheet and includes a plurality of pins which define coil terminals. The pins are soldered to a circuit of the circuit board. The circuit board is disposed in front of the support plate in spaced relationship therewith and is of arc-like configuration such that legs of the arc straddle the minute and hour wheels of the hands movement.
    Type: Grant
    Filed: December 9, 1982
    Date of Patent: August 14, 1984
    Assignee: Gebruder Junghans GmbH
    Inventors: Roland Maurer, Robert Wolber, Walter Obergfell, Hans Flaig
  • Patent number: 4291210
    Abstract: An on-off slide switch is arranged on a circuit board, preferably that of a battery-operated electronic clock, for actuating a stepping motor thereof. The slide switch can be moved to different positions and interacts with several electric paths of the circuit board. The switch is arranged movably along one edge of the circuit board and bears against such edge via guide elements. The switch carries at least one contact element for shunting a plurality of tracks of the board and a grip for its manual operation. The slide switch, together with all elements carried by it is designed in the form of a punched-out, flexible metal part and is easily installed on or removed from the circuit board without the need for separate fasteners.
    Type: Grant
    Filed: August 22, 1979
    Date of Patent: September 22, 1981
    Assignee: Gebruder Junghans GmbH
    Inventors: Robert Wolber, Walter Obergfell