Patents Assigned to Spiranyl S.a.r.l.
  • Device for screwing and unscrewing screws, bolts and nuts
    Patent number: 5158354
    Abstract: Device for screwing and unscrewing screws, bolts and nuts comprising an electric motor (2), a flywheel (14) fixed on an auxiliary shaft (5) connected to the output shaft of the electric motor by means of a pair of pinions (3, 4) made of elastic plastic material like polyurethane and a wrench (9) connectable to said flywheel by way of projecting teeth (15, 16) and moving axially in relation to said flywheel by way of an elastic member (11).
    Type: Grant
    Filed: September 11, 1990
    Date of Patent: October 27, 1992
    Assignee: Spiranyl S.a.r.l.
    Inventor: Jacques Simonin