Vehicle brake operating means

Claim 1

A SERVICE BRAKE CONTROL MEANS FOR A MOTOR VEHICLE HAVING AN ENGINE CONTROLLED BY A THROTTLE VALVE AND HAVING A SERVICE BRAKE SYSTEM INCLUDING A MASTER CYLINDER; SAID CONTROL MEANS INCLUDING A VACUUM RESPONSIVE CYLINDER HAVING A VACUUM RESPONSIVE RECIPROCABLE ELEMENT OPERATIVELY CONNECTED TO THE BRAKE SYSTEM MASTER CYLINDER, CONDUIT MEANS CONNECTING SAID VACUUM CYLINDER WITH A SOURCE OF VACUUM ASSOCIATED WITH THE VEHICLE ENGINE, AND MANUALLY OPERABLE CONTROL MEANS FOR VARYING THE EXTENT OF VACUUM IMPOSED OIN SAID VACUUM RESPONSIVE CYLINDER COMPRISING AN OSCILLATABLE FOOT PEDAL OPERATIVELY CONNECTED TO THE ENGINE THROTTLE VALVE AND A VACUUM COINTROLLING VALVE MEANS INTERPOSED IN SAID CONDUIT MEANS AND OPERATIVELY ASSOCIATED WITH SAID FOOT PEDAL; SAID VALVE MEANS INCLUDING PORT MEANS COMPRISING A PAIR OF COOPERATING PORTS WHICH DURING TRAVERSE OF SAID FOOT PEDAL THROUGH A PREDETERMINED PORTION OF ITS PATH OF MOVEMENT, ARE BROUGHT INTO REGISTRY WITH EACH OTHER TO CONNECT THE INTERIOR OF SAID CONDUIT MEANS WITH ATMOSPHERE WITH RESULTANT DISABLING OF SAID CONDUIT MEANS AND SAID VACUUM RESPONSIVE CYLINDER TO ACTUATE THE SERVICE BRAKE SYSTEM WHILE SAID FEET PEDAL IS MOVING WITHIN SAID PORTION OF ITS PATH OF MOVEMENT AND IN WHICH SAID PAIR OF PORTS ARE MOVED OUT OF REGISTRY WITH EACH OTHER DURING TRAVERSE OF SAID FOOT PEDAL THROUGH ANOTHER PORTION OF ITS PATH OF MOVEMENT WITH RESULTANT ACTUATION OF THE SERVICE BRAKE SYSTEM BY THE IMPOSITION OF VACUUM ON SAID VACUUM RESPONSIVE CYLINDER.