Floating nut insert

Claim 1

FOR USE IN A LIGHT-WEIGHT PANEL HAVING A HONEYCOMB CORE AND SKIN SHEETS SECURED TO THE EDGES THEREOF, SAID PANEL HAVING A HOLE BEGINNING WITH A CIRCULAR OPENING IN ONE OF THE SAID SKIN SHEETS AND CONTINUING THROUGH THE SAID CORE TO THE OPPOSITE SKIN SHEET; AN INSERT COMPRISING A SHELL HAVING AN OUTER HEAD IN THE FORM OF A FLAT CIRCULAR RADIAL FLANGE RECEIVABLE IN SAID CIRCULAR OPENING FOR CLOSING THE OUTER END OF THE SAID HOLE, THE SAID INSERT HAVING AN INNER HEAD OF RADIAL FLANGE FORM SPACED AXIALLY FROM THE SAID OUTER HEAD, AND ADAPTED TO BE POSITIONED NEAR THE OTHER SKIN SHEET AT THE BOTTOM OF SAID HOLE, SAID INSERT BEING OF TUBULAR FORMATION, THE OUTER HEAD HAVING A CENTRAL OPENING FOR RECEIVING A FASTENER BOLT, SAID INSERT HAVING A NUT WITHIN IT INCLUDING AN INTERNALLY THREADED SLEEVE PORTION RECEIVED WITHIN THE SAID TUBULAR INSERT, SAID INSERT COMPRISING PARTS JOINED TOGETHER WHEREBY TO RETAIN THE SAID NUT WITHIN THE TUBULAR PART OF THE INSERT, THE SAID NUT AND ONE OF THE PARTS OF THE INSERT HAVING PORTIONS CONFIGURATED TO MUTUALLY INTERFIT WITH EACH OTHER WHEREBY THE NUT IS HELD FROM ROTATION WITHIN THE BODY OF THE INSERT WITH THE NUT ENCAGED WITHIN THE INSERT WITH CIRCUMFERENTIAL CLEARANCE SO AS TO HAVE A FLOATING SELFALIGNING ACTION IN RECEIVING THE END OF A BOLT EXTENDING THROUGH SAID OUTER HEAD OPENING, SAID INSERT BEING CONFIGURATED TO BE ANCHORED BY A BODY OF SOLIDIFIED PLASTIC MATERIAL MOLDED AROUND THE SAID SHELL AND WITHIN THE SAID HOLE WITH THE SAID MOLDED BODY HAVING KEYED ROTATION RESISTING ENGAGEMENT WITH SAID HONEYCOMB CORE AND ADHERING TO SAID SHELL TO RESIST ROTATION OF SAID SHELL IN SAID PANEL, SAID SHELL IN TURN SECURING SAID NUT AGAINST ROTATION BY THE INTERFITTING ENGAGEMENT OF SAID NUT WITH SAID INSERT, ONE OF THE SAID PARTS OF THE INSERT COMPRISING A CLOSURE MEMBER AT THE END OF THE INSERT, SAID NUT AND CLOSURE MEMBER HAVING A RELATIVELY INTERFITTING SLOT AND KEY RELATIONSHIP WHEREBY THE NUT IS HELD AGAINST ROTATION IN THE INSERT, THE SAID CLOSURE MEMBER HAVING AN INTEGRAL AXIALLY PROJECTING KEY, SAID INSERT NUT HAVING A KEYWAY AT ITS LOWER END FOR INTERFITTINGLY ENGAGING SAID KEY WHEREBY ROTATION OF SAID BUT IS PREVENTED.