Contact arrangement

Claim 1

AN ELECTRIC CONTACT ARRANGEMENT FOR RECEIVING A PLUG, SAID CONTACT ARRANGEMENT COMPRISING A HOUSING AND TWO SPRINGS ARRANGED IN SAID HOUSING, SAID SPRINGS BEING BENT TO FORM FIRST AND SECOND PAIRS OF CONTACT-MAKING PORTIONS WHICH PAIRS ARE ARRANGED ONE BEHIND THE OTHER IN THE DIRECTION IN WHICH THE PLUG IS TO BE INSERTED, THE CONTACTMAKING PORTIONS OF EACH PAIR BEING, IN REST POSITION OF SAID SPRINGS WHEN NO PLUG IS IN CONTACT THEREWITH, AT LEAST NEARLY IN CONTACT WITH EACH OTHER, EACH SPRING HAVING A FIRST ARM WHICH EXTENDS FROM THE FIRST CONTACT-MAKING PORTION OF THE RESPECTIVE SPRING TO THE FIRST SUPPORT POINT AT WHICH THE RESPECTIVE SPRING, ALREADY IN ITS REST POSITION, ENGAGES AN INTERIOR SURFACE OF SAID HOUSING AT WHICH POINT SAID HOUSING TAKES UP THE INSERTING PRESSURE AS THE PLUG IS INSERTED, EACH SPRING FUTHER HAVING A SECOND ARM WHICH EXTENDS FROM SAID SECOND CONTACT-MAKING PORTION OF THE RESPECTIVE SPRING TO A SECOND SUPPORT POINT AT WHICH THE RESPECTIVE SPRING, ALREADY IN ITS REST POSITION, ENGAGES A PORTION OF THE FIRST ARM OF THE RESPECTIVE SPRING WHICH ARM PORTION EXTENDS BETWEEN SAID SECOND ARM AND SAID INTERIOR SURFACE OF SAID HOUSING, SAID FIRST ARM BEING LONGER THAN SAID SECOND ARM, AND SAID PORTION OF SAID FIRST ARM EXERTING ON SAID SECOND ARM A PROGRESSIVELY INCREASING PRESSURE DURING THE TRANSISTION OF EACH SPRING FROM REST POSITION TO A STRESSED POSITION IN WHICH SAID SPRINGS CONTACT THE PLUG.