Trim correcting devices for vehicles equipped with a hydraulic-correction suspensionsystem

Claim 1

A DEVICE FOR CORRECTING THE TRIM OF A VEHICLE IN RESPONSE TO A SOURCE OFF VACUUM WHEREIN THE SUSPENSION SYSTEM OF AT LEAST ONE AXLE OF SAID VEHICLE COMPRISES HYDRAULIC CORRECTING MEANS, A SOURCE OF HYDRAULIC PRESSURE, A DISTRIBUTOR, A RESERVOIR, SAID DISTRIBUTOR CONNECTING SAID PRESSURE SOURCE TO SAID RESERVOIR AND SAID CORRECTING MEANS, SAID DISTRIBUTOR INCLUDING A MOVABLE MEMBER, SAID MEMBER BEING ADAPTED TO ASSUME A POSITION WHEREIN SAID CORRECTING MEANS IS HYDRAULICALLY ISOLATED, SAID POSITION BEING INTERMEDIATE A CHARGING POSITION IN WHICH SAID DISTRIBUTOR CONNECTS SAID PRESSURE SOURCE TO SAID CORRECTING MEANS AND A DISCHARGE POSITION IN WHICH SAID DISTRIBUTOR CONNECTS SAID CORRECTING MEANS TO SAID RESERVOIR, AN ENCLOSURE, AN ACTUATOR ASSEMBLY IN SAID ENCLOSURE ADAPTED TO CONTROL SAID MOVABLE MEMBER, SAID ASSEMBLY DIVIDING SAID ENCLOSURE INTO TWO CHAMBERS, SUCTION PASSAGEWAY MEANS CONNECTING EACH OF SAID CHAMBERS WITH SAID VACUUM SOURCE, VENT PASSAGEWAY MEANS CONNECTED TO EACH OF SAID CHAMBERS AND HAVING A FIRST AND SECOND SET OF PORTS, A FIRST VALVE INTERPOSED IN SAID SUSPENSION SYSTEM OF SAID AXLE FOR SENSING THE POSITION OF THE BODY OF SAID VEHICLE ABOVE THE GROUND, SAID FIRST SET OF PORTS BEING POSITIONED IN SAID FIRST VALVE, SAID FIRST VALVE HAVING A MOVABLE ELEMENT FOR COOPERATION WITH SAID FIRST SET OF PORTS, SAID MOVABLE ELEMENT OF SAID FIRST VALVE ACTING TO UNCOVER SAID FIRST SET OF PORTS IN RESPONSE TO THE SENSING OF A PREDETERMINED LEVEL OF SAID BODY, SAID ELEMENT ACTING TO COVER ONE PORT OF SAID FIRST SET OF PORTS IN RESPONSE TO THE SENSING OF A LEVEL OF SAID BODY OUTSIDE SAID PREDETERMINED LEVEL WHEREBY SUCTION IS CREATED IN ONE OF SAID CHAMBERS TO EFFECT MOVEMENT OF SAID MOVABLE MEMBER OF SAID DISTRIBUTOR FROM SAID INTERMEDIATE POSITION, SAID FIRST VALVE BEING INTERPOSED IN SAID SUSPENSION SYSTEM IN SUCH A MANNER SO THAT SAID MOVABLE MEMBER IS ACTUATED BY SAID MOVABLE ASSEMBLY TO ONE OF SAID POSITION OTHER THAN SAID INTERMEDIATE POSITION TO MAINTAIN SAID PREDETERMINED LEVEL OF SAID BODY AND A SECOND VALVE ADAPTED TO EFFECT MANUAL ACTUATION OF SAID MOVABLE MEMBER, SAID SECOND SET OF PORTS BEING POSITIONED IN SAID SECOND VALVE, SAID SECOND VALVE HAVING A SELECTOR ELEMENT FOR COOPERATION WITH SAID SECOND SET OF PORTS, SAID SELECTOR ELEMENT BEING ADAPTED TO MOVE FROM A NORMAL POSITION WHEREIN SAID PORTS ARE NOT COVERED TO AT LEAST ONE POSITION TO CLOSE TO THE ATMOSPHERE ONE PORT OF SAID SECOND SET OF PORTS WHEREBY A VACUUM IS CREATED IN ONE OF SAID CHAMBERS CAUSING SAID MOVABLE MEMBER TO BE ACTUATED BY SAID MOVABLE ASSEMBLY TO ONE OF SAID POSITIONS OTHER THAN SAID INTERMEDIATE POSITION TO MOVE SAID BODY FROM SAID PREDETERMINED LEVEL, SAID FIRST VALVE HAVING A RELIEF PASSAGE FOR COMMUNICATION WITH SAID FIRST SET OF PORTS OF SAID VENT PASSAGEWAY MEANS UPON MOVEMENT OF SAID BODY A PREDETERMINED DISTANCE FROM SAID PREDETERMINED LEVEL FOR VENTING SAID ONE OF SAID CHAMBERS THEREBY LIMITING THE EXTENT OF SAID MOVEMENT OF SAID BODY.

Claim 2

A DEVICE FOR CORRECTING THE TRIM OF A VEHICLE IN RESPONSE TO A SOURCE OFF VACUUM WHEREIN THE SUSPENSION SYSTEM OF AT LEAST ONE AXLE OF SAID VEHICLE COMPRISES HYDRAULIC CORRECTING MEANS, A SOURCE OF HYDRAULIC PRESSURE, A DISTRIBUTOR, A RESERVOIR, SAID DISTRIBUTOR CONNECTING SAID PRESSURE SOURCE TO SAID RESERVOIR AND SAID CORRECTING MEANS, SAID DISTRIBUTOR INCLUDING A MOVABLE MEMBER, SAID MEMBER BEING ADAPTED TO ASSUME A POSITION WHEREIN SAID CORRECTING MEANS IS HYDRAULICALLY ISOLATED, SAID POSITION BEING INTERMEDIATE A CHARGING POSITION IN WHICH SAID DISTRIBUTOR CONNECTS SAID PRESSURE SOURCE TO SAID CORRECTING MEANS AND A DISCHARGE POSITION IN WHICH SAID DISTRIBUTOR CONNECTS SAID CORRECTING MEANS TO SAID RESERVOIR, AN ENCLOSURE, AN ACTUATOR ASSEMBLY IN SAID ENCLOSURE ADAPTED TO CONTROL SAID MOVABLE MEMBER, SAID ASSEMBLY DIVIDING SAID ENCLOSURE INTO TWO CHAMBERS, SUCTION PASSAGEWAY MEANS CONNECTING EACH OF SAID CHAMBERS WITH SAID VACUUM SOURCE, VENT PASSAGEWAY MEANS CONNECTED TO EACH OF SAID CHAMBERS AND HAVING A FIRST AND SECOND SET OF PORTS, A FIRST VALVE INTERPOSED IN SAID SUSPENSION SYSTEM OF SAID AXLE FOR SENSING THE POSITION OF THE BODY OF SAID VEHICLE ABOVE THE GROUND, SAID FIRST SET OF PORTS BEING POSITIONED IN SAID FIRST VALVE, SAID FIRST VALVE HAVING A MOVABLE ELEMENT FOR COOPERATION WITH SAID FIRST SET OF PORTS, SAID MOVABLE ELEMENT OF SAID FIRST VALVE ACTING TO UNCOVER SAID FIRST SET OF PORTS IN RESPONSE TO THE SENSING OF A PREDETERMINED LEVEL OF SAID BODY, SAID ELEMENT ACTING TO COVER ONE PORT OF SAID FIRST SET OF PORTS IN RESPONSE TO THE SENSING OF A LEVEL OF SAID BODY OUTSIDE SAID PREDETERMINED LEVEL WHEREBY SUCTION IS CREATED IN ONE OF SAID CHAMBERS TO EFFECT MOVEMENT OF SAID MOVABLE MEMBER OF SAID DISTRIBUTOR FROM SAID INTERMEDIATE POSITION, SAID FIRST VALVE BEING INTERPOSED IN SAID SUSPENSION SYSTEM IN SUCH A MANNER SO THAT SAID MOVABLE MEMBER IS ACTUATED BY SAID MOVABLE ASSEMBLY TO ONE OF SAID POSITION OTHER THAN SAID INTERMEDIATE POSITION TO MAINTAIN SAID PREDETERMINED LEVEL OF SAID BODY AND A SECOND VALVE ADAPTED TO EFFECT MANUAL ACTUATION OF SAID MOVABLE MEMBER, SAID SECOND SET OF PORTS BEING POSITIONED IN SAID SECOND VALVE, SAID SECOND VALVE HAVING A SELECTOR ELEMENT FOR COOPERATION WITH SAID SECOND SET OF PORTS, SAID SELECTOR ELEMENT BEING ADAPTED TO MOVE FROM A NORMAL POSITION WHEREIN SAID PORTS ARE NOT COVERED TO AT LEAST ONE POSITION TO CLOSE TO THE ATMOSPHERE ONE PORT OF SAID SECOND SET OF PORTS WHEREBY A VACUUM IS CREATED IN ONE OF SAID CHAMBERS CAUSING SAID MOVABLE MEMBER TO BE ACTUATED BY SAID MOVABLE ASSEMBLY TO ONE OF SAID POSITIONS OTHER THAN SAID INTERMEDIATE POSITION TO MOVE SAID BODY FROM SAID PREDETERMINED LEVEL, SAID FIRST VALVE HAVING A RELIEF PASSAGE FOR COMMUNICATION WITH SAID FIRST SET OF PORTS OF SAID VENT PASSAGEWAY MEANS UPON MOVEMENT OF SAID BODY A PREDETERMINED DISTANCE FROM SAID PREDETERMINED LEVEL FOR VENTING SAID ONE OF SAID CHAMBERS THEREBY LIMITING THE EXTENT OF SAID MOVEMENT OF SAID BODY.