Vibration isolation device

Claim 1

IN COMBINATION WITH SEISMIC TRANSDUCER HAVING A BASEPLATE, VIBRATION ISOLATION DEVICE FOR APPLYING THE WEIGHT OF A TRANSPORTING VEHICLE AS A STATIC LOAD TO THE BASEPLATE TO HOLD THE BASEPLATE AGAINST THE GROUND WHILE ISOLATING THE MOTION OF THE BASEPLATE FROM THE VEHICLE OR, ALTERNATIVELY, FOR LIFTING THE BASEPLATE AND TRANSDUCER FOR TRANSPORT, COMPRISING: AN ELONGATED MEMBER SPACED FROM THE DISPOSED GENERALLY PARALLEL TO THE BASEPLATE, A PAIR OF FLEXIBLE TENSION MEMBERS INTERCONNECTING THE ENDS OF THE ELONGATED MEMBER AND THE BASEPLATE FOR MAINTAINING THE MEMBER WITHIN A MAXIMUM SPACING FROM THE BASEPLATE, A PAIR OF SPACED COIL SPRINGS COMPRESSIVELY DISPOSED BETWEEN THE BASEPLATE AND THE ELONGATED MEMBER AND CONTACTING EACH, A BULK SPRING MEANS CONNECTED TO THE BASEPLATE BETWEEN THE COIL SPRINGS AND BETWEEN THE BASEPLATE AND THE ELONGATED MEMBER, AT LEAST ONE PIN MEANS CONNECTED TO THE BULK SPRING MEANS AND EXTENDING AWAY FROM THE BASEPLATE, AN APERTURE IN THE ELONGATED MEMBER SLIDABLY RECEIVING EACH OF THE PIN MEANS FOR TRANSMITTING LATERAL LOADS ON THE ELONGATED MEMBER TO THE BULK SPRING MEANS WHILE PERMITTING MOVEMENT OF THE ELONGATED MEMBER AWAY FROM THE BULK SPRING MEANS, AND THE FLEXIBLE TENSION MEMBERS, THE COIL SPRINGS AND THE PIN MEANS BEING DIMENSIONED SUCH THAT WHEN THE TENSION MEMBERS ARE TAUT TO LIFT THE BASEPLATE, THE PIN MEANS WILL BE RETAINED IN THE RESPECTIVE APERTURES AND THE COIL SPRINGS WILL BE AT LEAST SLIGHTLY COMPRESSED, AND WHEN BOTH THE COIL SPRINGS AND THE BULK SPRING MEANS ARE COMPRESSED, THE TENSION MEMBERS WILL BE LOOSE TO PERMIT VERTTICAL MOVEMENT OF THE BASEPLATE.