Door or window frame

Claim 1

AN IMPROVED FRAME ASSEMBLY FOR DOORS AND WINDOWS IN A WALL OPENING HAVING A FRAME SUPPORT PROVIDED THERE ON, COMPRISING: TWO VERTICAL POST MEMBERS AND A TOP HEADER MEMBER, ALL OF WHICH ARE DIVIDED INTO TWO HALVES IN THE PLANE PARALLEL TO THE WALL, WITH EACH HALF BEING IN THE FORM OF AN ANGULAR FRAME SECTION MADE FROM A RESILIENT THERMOPLASTIC MATERIAL, SAID FRAME SECTIONS FURTHER BEING ADAPTED TO BE DISPOSED AT AND AROUND THE WALL OPENING IN SPACED ATTACHMENT RELATIONSHIP TO THE WALL AND THE FRAME SUPPORT THEREON SAID FRAME SEC TIONS BEING PROVIDED WITH RAISED EDGES AT THE REVEAL OF THE FRAME FOR RECEIVING A TROUGH-SHAPED FILLET WHICH IS CLAMPED ONTO THE FRAME SECTIONS AT SAID RAISED EDGES BY A SNAP-FASTENABLE ENGAGEMENT WITH THE RAISED EDGES, AND INCLUDING RECESSES IN THE FRAME SECTIONS OF SAID EDGES TWO VERTICAL POST MEMBERS FOR RECEIVING HINGE PLATES AND KEEPER PLATES WHICH ARE SECURED TO RESPECTIVE BACKING MEMBERS OF EACH OF SAID VERTICAL POST MEMBERS, A TROUGH-SHAPED FILLET MADE OF A THEMOPLASTIC MATERIAL FOR CLAMPING ENGAGEMENT WITH THE RAISED EDGES OF SAID FRAME SECTIONS, AND A SEPARATE COMMON BACKING MEMBER FOR BACKING UP THE HALVES OF EACH VERTICAL POST MEMBER, SAID COMMON BACKING MEMBER BEING INTERPOSED BETWEEN SAID FRAME SUPPORTS AND SAID FRAME SECTIONS TO SPACE SAID SECTIONS FROM THE FRAME SUPPORTS, EACH SAID COMMON BACKING MEMBER HAVING A CENTRAL RIDGE PROJECTING ALONG A LONGITUDINAL AXIS OF THE BACKING MEMBER FOR INSERTION BETWEEN THE SEPARATE HALF SECTIONS WHICH MAKE UP EACH VERTICAL POST MEMBER AND INCLUDING IN SAID CENTRAL RIDGE A RETAINING MEANS FOR CONTACTING AND RETAINING EDGE PORTIONS OF SAID HALF SECTIONS.