Folding door

Claim 1

IN COMBINATION, A DOOR FRAME INCLUDING FIRST AND SECOND OPPOSITE EDGE PORTIONS AND A THIRD EDGE PORTION EXTENDING BETWEEN CORRESPONDING ENDS OF SAID FIRST AND SECOND EDGE PORTIONS AND DEFINING A DOOR OPENING BETWEEN SAID FIRST AND SECOND EDGE PORTIONS, A DOOR ASSEMBLY INCLUDING FIRST AND SECOND DOORS, SAID FIRST DOOR BEING PIVOTALLY SECURED ALONG ONE EDGE PORTION TO SAID FIRST EDGE PORTION, MEANS PIVOTALLY SECURING THE CORRESPONDING EDGE PORTION OF SAID SECOND DOOR TO THE FREE EDGE PORTION OF SAID FIRST DOOR, MEANS SLIDABLY SECURING THE FREE EDGE PORTION OF SAID SECOND DOOR TO SAID THIRD EDGE PORTION FOR MOVEMENT THEREALONG, THE ADJACENT EDGE PORTIONS OF SAID DOORS BEING SPACED APART, ARM MEANS PIVOTALLY CONNECTED AT ITS OPPOSITE ENDS TO THE FREE EDGE PORTION OF SAID FIRST DOOR AND TO THE REMOTE EDGE PORTION OF SAID SECOND DOOR, SAID DOOR ASSEMBLY WHEN FULLY EXTENDED, BEING OF SLIGHTLY GREATER WIDTH THAN SAID OPENING, THE FIRST-MENTIONED MEANS INCLUDING FIRST AND SECOND HINGE COMPONENT MEANS PIVOTALLY SECURED TOGETHER, SAID FIRST HINGE COMPONENT MEANS BEING FIXEDLY SECURED TO ONE OF SAID DOORS AND THE SECOND HINGE COMPONENT MEANS BEING MOUNTED ON THE OTHER OF SAID DOORS FOR RECIPROCAL MOVEMENT BETWEEN TWO LIMIT POSITIONS TOWARD AND AWAY FROM THE ADJACENT EDGE PORTION OF SAID SECOND DOOR, MEANS CONNECTED BETWEEN SAID SECOND HINGE COMPONENT MEANS AND THE OTHER DOOR YIELDINGLY URGING SAID SECOND HINGE COMPONENT MEANS TOWARD SAID ONE DOOR, SAID SECOND EDGE PORTION OF SAID FRAME INCLUDING ABUTMENT SURFACE MEANS DISPOSED IN A PLANE GENERALLY PARALLELING THE MEDIAL PLANE OF SAID OPENING AND PROJECTING INTO THE LATTER FROM SAID SECOND EDGE PORTION, SAID MEANS SLIDABLY SECURING SAID FREE EDGE PORTION OF SAID SECOND DOOR TO SAID THIRD EDGE PORTION OF SAID FRAME AND SAID ARM MEANS INCLUDING MEANS OPERATIVE TO FORCE SAID FREE EDGE PORTION OF SAID SECOND DOOR LATERALLY INTO TIGHT ABUTTING ENGAGEMENT WITH SAID ABUTMENT SURFACE MEANS UPON FINAL MOVEMENT OF SAID DOORS TO THE FULLY CLOSED PLANAR POSITIONS.