Sliding door construction and seal therefor

Claim 1

A CLOSURE ASSEMBLY FOR A CABINET CONSTRUCTION COMPRISING: (A) A FRAME FOR OUTLINING AN ACCESS OPENING TO A CABINET, (B) SAID FRAME INCLUDING RECTANGULARLY DISPOSED OPPOSED END JAMB MEMBERS AND OPPOSED SIDE MEMBERS, (C) EACH OF SAID SIDE MEMBERS HAVING A GUIDE RAIL EXTENDING LONGITUDINALLY AND SUBSTANTIALLY CO-EXTENSIVE THEREALONG, AND (D) EACH OF SAID END JAMB MEMBERS HAVING A JAMB RAIL, (C) SAID OPPOSED GUIDE RAILS AND OPPOSED JAMB RAILS BEING CO-PLANARLY DISPOSED, (F) A CLOSURE FOR SAID OPENING SLIDABLY DISPOSED ALONG SAID GUIDE RAILS, (G) SAID CLOSURE INCLUDING A CLOSURE FRAME COMPRISING RECTANGULARLY DISPOSED SIDE AND END PORTIONS, EACH OF SAID SIDE PORTIONS BEING FORMED WITH A GROOVE FOR LOOSELY RECEIVING SAID GUIDE RAILS WHEREBY SAID RAIL AND COMPLEMENTARY GROOVE ALLOWS FOR LIMITED MOVEMENT OF SAID CLOSURE RELATIVE TO SAID FRAME SUFFICIENT TO EFFECT DISENGAGEMENT OF THE CLOSURE THEREFROM, (H) AND MEANS DEFINING A FLEXIBLE SEAL DISPOSED ADJACENT SAID GROOVES, SAID SEALS EXTENDING OUTWARDLY OF SAID CLOSURE FOR STRADDLING SAID GUIDE RAILS TO DEFINE A SLIDING FLUID TIGHT SEAL THERWITH, (I) SAID SEAL COMPRISING A U SHAPED MEMBER HAVING OPPOSED LEG PORTIONS EXTENDING TO EITHER SIDE OF SAID GROOVE AND PROJECTING BEYOND THE EDGE OF SAID CLOSURE, (J) THE ENDS OF SAID LEG PORTIONS BEING DISPOSED IN SLIDING ENGAGEMENT WITH THE SIDE MEMBER OF SAID FRAME AND DEFINING THE BEARING EDGE FOR SAID CLOSURE SLIDING BETWEEN THE OPPOSED SIDE MEMBERS WHEREBY SAID SEAL IS SUFFICIENTLY FLEXIBLE TO PERMIT LIMITED DISPLACEMENT OF SAID CLOSURE RELATIVE TO SAID FRAME AND WHEREBY SAID SEAL DEFINES THE BEARING FOR SAID CLOSURE BETWEEN THE OPPOSED SIDE MEMBERS OF SAID FRAME AND FUNCTIONS TO CENTER THE CLOSURE BETWEEN SAID SIDE MEMBERS.