Vehicle door locking system with vacuum and air pressure lock operating means

Claim 1

A DOOR LOCKING SYSTEM FOR AN AUTOMOTIVE VEHICLE COMPRISING A DOOR IN SAID VEHICLE, DOOR LOCKING MEANS OPERATIVELY ASSOCIATED WITH SAID DOOR, FLUID PRESSURE MOTOR MEANS COUPLED TO SAID DOOR LOCKING MEANS, A SOURCE OF FLUID PRESSURE IN SAID VEHICLE, COUPLING MEANS EXTENDING BETWEEN SAID FLUID PRESSURE SOURCE AND SAID FLUID PRESSURE MOTOR, SAID COUPLING MEANS INCLUDING A SINGLE CONDUIT COUPLED TO SAID MOTOR MEANS, FIRST MEANS OPERABLE INDEPENDENTLY OF SAID SOURCE OF FLUID PRESSURE ACTUATABLE BY A VEHICLE OPERATOR FOR EFFECTING COMMUNICATION BETWEEN SAID FLUID PRESSURE SOURCE AND SAID MOTOR MEANS THROUGH SAID SINGLE CONDUIT FOR ACTUATING SAID MOTOR MEANS IN A FIRST DIRECTION FOR LOCKING SAID VEHICLE DOORS AND SECOND MEANS OPERABLE TO PROVIDE PRESSURIZED FLUID OF A SIGN WHICH IS OPPOSITE TO THE PRESSURIZED FLUID AT SAID SOURCE FOR ACTUATING SAID MOTOR MEANS IN A SECOND DIRECTION THROUGH SAID SINGLE CONDUIT ACTUATED BY SAID VEHICLE OPERATOR TO UNLOCK SAID VEHICLE DOORS INDEPENDENTLY OF SAID FLUID PRESSURE SOURCE, SAID SECOND MEANS ACTUATED BY SAID VEHICLE OPERATOR INCLUDING A PUMP HAVING PISTON MEANS OPERABLE INDEPENDENTLY OF SAID SOURCE OF FLUID PRESSURE AND MEANS MECHANICALLY COUPLED TO SAID PISTON MEANS FOR PERMITTING ACTUATION OF SAID PUMP INDEPENDENTLY OF SAID SOURCE OF FLUID PRESSURE BY THE DIRECT MANIPULATION OF SAID LAST MENTIONED MEANS BY SAID VEHICLE OPERATOR.