Electrically insulating devices

Claim 1

A COMPOSITE ARTICLE SUCH AS AN INSULATING MOUNT, COMPRISING: AN INSULATOR BODY OF MATERIAL HAVING PHYSICAL PROPERTIES CHARACTERISTIC OF POLYFLUOROETHYLENSES SUCH AS APPRECIABLE TENDENCY TO FLOW DUE TO LOW INTERNAL FRICTION AND LITTLE TENDENCY ELASTICALLY TO RETURN AFTER DEFORMATION TO AN ORIGINAL SHAPE, SAID INSULATOR HAVING AN AXIAL BORE BETWEEN TWO TRANSVERSE FACES AT THE OPENINGS OF THE BORE; AND A METAL INSERT HAVING TWO CONNECTING MEANS ONE ON EACH SIDE OF A CORE BETWEEN TWO TRANSVERSE SHOULDERS WHICH EXTEND OUTWARDLY FROM THE CORE; THE PREFORMED DISTANCE BETWEEN SAID FACES BEING SLIGHTLY GREATER THAN THE PREFORMED DISTANCE BETWEEN SAID SHOULDERS, THE PREFORMED AVERAGE DIAMETER OF SAID CORE BEING SLIGHTLY GREATER THAN THE PREFORMED DIAMETER OF SAID BORE, THE PREFORMED AVERAGE DIAMETER OF SAID SHOULDERS BEING APPRECIABLY GREATER THAN THE PREFORMED DIAMETER OF SAID BORE, AND SAID INSULATOR BODY BEING CONDITIONED THROUGH ASSEMBLY WITH SAID METAL INSERT BY AXIALLY PRESSING SAID INSERT INTO SAID BORE OF SAID INSULATOR BODY WITH THE FORWARD SHOULDER PASSING AN OPENING FACE OF THE BORE AND PRNETRATING THE BODY UNTIL THE SECOND SHOULDER ENGAGES THE OPENING FACE AND THE FORWARD SHOULDER REACHES THE OTHER FACE, WHILE RESTRAINING THE OUTSIDE OF THE INSULATOR BODY TO ITS PREFORMED CONFIGURATION AGAINST DEFROMATION DURING SUCH ASSEMBLY; WHEREBY THE RECESS IS TEMPORARILY DEFORMED BY THE FLOW DURING ASSEMBLY OF SAID INSULATING MATERIAL AROUND THE FORWARD SHOULDER WITHOUT PERMANENT DEFORMATION OF THE INSULATOR BODY, AND THE INSULATOR BODY FIRMLY ENGAGES THE CORE AND THE SHOULDERS WITHOUT ELASTIC RETURN UPON REMOVAL OF THE RESTRAINT.