Patents by Inventor Egon Kurt Ekdahl

Egon Kurt Ekdahl 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).

  • Device for discontinuing and automatically restoring the operational function of a spring brake actuator
    Patent number: 3994205
    Abstract: An actuator for a spring brake used for parking and emergency has a spring operating on the brake push rod which will apply braking unless fluid pressure in the braking system applied to a piston overcomes spring pressure. To disable the spring brake the rod is retracted by a mechanism coupling the piston to the rod so that the brake is automatically restored into service when the piston is operated by the fluid pressure. The mechanism has a one-way clutch engaging a threaded push rod by means of a nut in non-self-locking engagement on the push rod threads.
    Type: Grant
    Filed: January 20, 1975
    Date of Patent: November 30, 1976
    Assignee: Svenska Aktiebolaget Bromsregulator
    Inventors: Egon Kurt Ekdahl, Michel Roger, Nils Borje Lennart Sander