Patents by Inventor Laurent Grosjean

Laurent Grosjean 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: 5077711
    Abstract: The watch case comprises a middle cum bezel unit (14,16), a glass (18) secured to the unit and a bell-shaped cap (20). The glass (18) is formed with a heel (28) extending radially towards the periphery of the case. The glass (18) further defines with the bezel-forming portion (16) of the unit a groove (30) by means of which the cap (20) is secured and positioned.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: December 31, 1991
    Assignee: ETA SA Fabriques d'Ebauches
    Inventor: Laurent Grosjean
  • Patent number: 5036502
    Abstract: The watch case comprises a middle cum bezel unit (14,16), a glass (18) secured to the unit and a bell-shaped cap (20). The glass (18) is formed with a heel (28) extending radially towards the periphery of the case. The glass (18) further defines with the bezel-forming portion (16) of the unit a groove (30) by means of which the cap (20) is secured and positioned.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: July 30, 1991
    Assignee: ETA SA Fabriques d'Ebauches
    Inventor: Laurent Grosjean
  • Patent number: 5034932
    Abstract: The watch case (1) of this invention includes a caseband-bezel (2) of plastic material overlaid with a metal cap (5). The cap is a metallic leaf formed to match the relief of the bezel (15) and caseband (16) which it overlays. The cap is secured to the caseband-bezel by tabs (50) folded into receptacles (51) provided by the caseband-bezel.
    Type: Grant
    Filed: July 18, 1989
    Date of Patent: July 23, 1991
    Assignee: ETA S.A. Fabriques d'Ebauches
    Inventor: Laurent Grosjean
  • Patent number: 4999823
    Abstract: The watch case (1) of this invention includes a caseband-bezel (2) of plastic material overlaid with a metal cap (5). The cap is a metallic leaf formed to match the relief of the bezel (15) and caseband (16) which it overlays. The cap is secured to the caseband-bezel by glue preferably located in a receptacle (33) provided within the thickness of the caseband and extending at least partially along the periphery of said caseband.
    Type: Grant
    Filed: July 18, 1989
    Date of Patent: March 12, 1991
    Assignee: ETA S.A. Fabriques d'Ebauches
    Inventor: Laurent Grosjean
  • Patent number: 4958334
    Abstract: The bracelet of this invention, having metallic links (11, 12), includes hinge knuckles (17) of plastic material at its ends. Such hinge knuckles (17) permit, in particular, the avoidance of premature wear of the case (1) especially when the latter is of relatively soft material, for example plastic.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: September 18, 1990
    Assignee: ETA SA Fabriques d'Ebauches
    Inventor: Laurent Grosjean
  • Patent number: 4258432
    Abstract: An electro-acoustic device for an alarm watch includes a lever moved by an oscillating electromagnetic field created by an electromagnet to vibrate a moving element or glass of the watch and produce a sound. The glass is elastically mounted on a sealing ring of the watch. The lever is mounted by one end to the watch and includes a tapered part adjacent the one end which is elastically deformable thereat so that a free end of the lever opposite the one end may vibrate and its fundamental frequency in response to the oscillating electromagnetic field. The free end of the lever carries a stem coupling the lever to the glass and transmitting the oscillating motion of the lever to the glass, which vibrates on the elastic ring to produce the sound.
    Type: Grant
    Filed: October 25, 1979
    Date of Patent: March 24, 1981
    Assignee: Ebauches S.A.
    Inventors: Roberto Zafferri, Laurent Grosjean
  • Patent number: 4172970
    Abstract: An electric switch for connecting one or more of a plurality of leads on one side of an insulating substrate to a lead on the other side of the substrate. The switch includes a conductive contact member having a pin rotatably engaged in a hole in the substrate. The pin having a first end extending out of the first side of the substrate and having a head eccentrically connected thereto. The pin of the contact member is electrically connected to a lead on a second side of the substrate. Means are provided on the contact member for rotating the contact member head between the plurality of leads selectively to contact one or more of the leads on the first substrate side with the head to electrically connect the selected lead through the pin with the lead on the second substrate side.
    Type: Grant
    Filed: February 6, 1978
    Date of Patent: October 30, 1979
    Assignee: Ebauches S.A.
    Inventors: Laurent Grosjean, Daniel Rochat