Frame assembly for defining and opening for use in cabinet construction

Claim 1

A FRAME ASSEMBLY FOR OUTLINING AN OPENING IN A CABINET OR THE LIKE COMPRISING RECTANGULARLY DISPOSED FRAME MEMBERS INCLUDING A PAIR OF OPPOSED END JAMB MEMBERS AND A PAIR OF OPPOSED SIDE MEMBERS WHEREBY THE ADJACENT ENDS OF THE SAID RECTANGULARLY DISPOSED MEMBERS ARE SPACED APART, EACH OF SAID MEMBERS BEING DEFINED BY A WEB HAVING A LATERALLY DISPOSED FLANGE EXTENDING OUTWARDLY FROM SAID WEB ALONG THE REAR LONGITUDINAL EDGE THEREOF, AND A FRONT FACING EXTENDING LATERALLY TO EITHER SIDE OF SAID WEB ALONG THE FRONT LONGITUDINAL EDGE THEREOF, EACH OF SAID SIDE MEMBERS HAVING A GUIDE RAIL CONNECTED TO SAID WEB PORTION BETWEEN THE LONGITUDINAL EDGES THEREOF, THE GUIDE RAIL OF THE RESPECTIVE SIDE MEMBERS BEING DISPOSED ALONG THE INNER SURFACE OF THE RESPECTIVE SIDE MEMBERS, EACH OF SAID JAMB MEMBERS HAVING A JAMB RAIL CONNECTED TO THE RESPECTIVE WEB PORTIONS THEREOF, SAID JAMB RAILS AND SIDE RAILS BEING CO-PLANARLY DISPOSED IN THE ASSEMBLED POSITION OF SAID FRAME MEMBERS, A CORNER PIECE DISPOSED BETWEEN THE ADJACENT ENDS OF SAID SIDE AND JAMB MEMBERS TO DEFINE A CORNER JUNCTION THEREAT, SAID CORNER PIECE BEING COEXTENSIVE IN WIDTH TO THE WEB PORTION OF THE ADJACENT MEMBERS, SAID CORNER PIECE INCLUDING AN ARCUATE WEB PORTION, END FLANGES CONNECTED TO THE ENDS OF SAID ARCUATE WEB PORTION, SAID ARCUATE WEB PORTION DEFINING A ROUNDED CORNER AT JUNCTURE OF SAID FRAME MEMBERS, SAID CORNER PIECES EACH HAVING AN ARCUATE RAIL PORTION CONNECTING THE RAIL PORTION OF SAID ADJACENT SIDE AND END FRAME MEMBERS, AND MEANS FRICTIONALLY INTERLOCKING THE RESPECTIVE CORNER PIECE BETWEEN ADJACENT SIDE AND END FRAME MEMBERS, SAID LATTER MEANS INCLUDING A GROOVE FORMED IN SAID RAIL PORTIONS OF THE ADJACENT SIDE AND END FRAME MEMBERS, AND EACH OF SAID CORNER PIECES HAVING PROJECTING LUGS EXTENDING OUTWARDLY FROM THE ARCUATE RAIL PORTIONS THEREOF AND RECEIVED IN THE GROOVES OF THE ADJACENT SIDE AND END FRAME MEMBERS.