Patents by Inventor Jean Rosselet

Jean Rosselet 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).

  • Mechanism for a rotating projectile fuze
    Patent number: 4418621
    Abstract: The mechanism comprises two toothed rotary bodies (1,2) sensitive to the gyratory centrifugal force of the projectile. The rotary bodies (1,2) mesh with each other. The body (1) simultaneously meshes with a toothed pinion (9) the shaft (10) of which carries, for example, the escapement wheel of a delay device having a balance of the fuze. The rotary bodies (1,2) conjointly develop a substantially constant driving couple which is the resultant of positive driving couple of one of them and of a negative braking couple of the other.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: December 6, 1983
    Assignee: Mefina S.A.
    Inventor: Jean Rosselet
  • Safety mechanism for fuses
    Patent number: 4291628
    Abstract: A safety mechanism for the trajectory for a projectile fuse.The mechanism uses a symmetrical escapement of the cylindrical dead-beat type which does not comprise an inlet lip. The balance comprises two cheeks located one on each side of the escapement wheel, a cylindrical sector being provided on each cheek. Impulses provided by the escapement wheel are transmitted alternately to one of the two sectors then to the other sector, thereby causing the balance to oscillate first in one direction and then in the opposite direction.
    Type: Grant
    Filed: June 5, 1979
    Date of Patent: September 29, 1981
    Assignee: Mefina S.A.
    Inventor: Jean Rosselet