Patents by Inventor Edwin Jakob

Edwin Jakob 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).

  • Timepiece
    Patent number: 5392260
    Abstract: The date disc correction mechanism (3) of this time-piece comprises a control stem (7) movable between at least two axial positions, and on which a sliding pinion (9) and a correction pinion (17) are mounted. The sliding pinion exhibits at least one spur (28) provided in order to come into engagement with an opening (25) formed in the correction pinion in one of the axial positions of the stem (7) so as to render the correction pinion fixed in rotation with the sliding pinion (9).
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: February 21, 1995
    Assignee: Eta SA Fabriques d'Ebauches
    Inventors: Wolfgang Kroener, Edwin Jakob
  • Regulator key for watch movements
    Patent number: 4083179
    Abstract: A one-piece regulator key for watch movements includes two spaced apart prongs projecting from and integral with a common support, each prong has an inward plane surface facing and substantially parallel to a like inward plane surface on the other prong and is provided at its free end with an inwardly projecting protuberance for decreasing the spacing between the prongs at their free ends.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: April 11, 1978
    Assignee: ETA A.G. Ebauches Fabrik
    Inventors: Urs Giger, Edwin Jakob
  • Calendar ring driving wheel for timepieces
    Patent number: 4060976
    Abstract: A timepiece having a toothed calendar ring and a driving wheel for advancing the calendar ring, wherein the driving wheel comprises a hub and a completely closed toothed rim having a driving tooth. The rim is connected to the hub by a resilient member so that the driving tooth makes way for a tooth of the calendar ring when the calendar ring is driven by means other than the driving wheel.
    Type: Grant
    Filed: May 10, 1976
    Date of Patent: December 6, 1977
    Assignee: ETA A.G. Ebauches-Fabrik
    Inventor: Edwin Jakob