Dental instrument unit construction

Claim 1

DENTAL INSTRUMENT UNIT CONSTRUCTION OF THE TYPE IN WHICH TRAY MEANS IS MOUNTED THROUGH A PIVOTAL TRAY ARM ON A UNIT BASE FOR SELECTED PIVOTALI MOVEMENT OF THE TRAY ARM RELATIVE TO THE UNIT BASE AND THEREBY MOVEMENT OF THE TRAY MEANS TO SELECTED HORIZONTAL AND VERTICAL LOCATIONS, AND IN WHICH DENTAL INSTRUMENTS ARE OPERABLY AND SELECTIVELY REMOVABLY CONNECTED TO THE UNIT FOR SELECTIVE REMOVAL AND USE BY THE DENTIST IN PERFORMING DENTAL WORK ON A PATIENT POSITIONED ADJACENT THE UNIT BASE; THE IMPROVEMENTS WHICH INCLUDE A TRAY POSITIONED ON THE TRAY MEANS EXTENDING GENERALLY HORIZONTALLY, INSTRUMENT HOLDER MEANS SUPPORTED TOTALLY ON AND MOVABLE DIRECTLY WITH THE TRAY MEANS FOR REMOVABLY HOLDING AT LEAST ONE DENTAL INSTRUMENT, AT LEAST ONE DENTAL INSTRUMENT REMOVABLY POSITIONED ON THE INSTRUMENT HOLDER MEANS, WALL MEMBERS FORMED ON THE TRAY MEANS POSITIONED UNDERLYING THE TRAY AND FORMING AN INSTRUMENT SUPPLY AND REGULATION COMPARTMENT UNDERLYING SAID TRAY, SUPPLY MEANS EXTENDING THROUGH THE SUPPLY AND REGULATION COMPARTMENT OF THE TRAY MEANS AND MOVABLE DIRECTLY WITH THE TRAY MEANS AND OPERABLY CONNECTED TO THE DENTAL INSTRUMENT FOR DIRECTING AT LEAST FLUIDS TO THE SUPPLY AND REGULATION COMPARTMENT AND THROUGH SAID COMPARTMENT TO THE INSTRUMENT HOLDER MEANS AND SAID DENTAL INSTRUMENT FOR USE IN OPERATION OF SAID INSTRUMENT, AND REGULATION MEANS AT LEAST PARTIALLY IN THE SUPPLY AND REGULATION COMPARTMENT OF THE TRAY MEANS OPERABLE CONNECTED TO THE SUPPLY MEANS FOR REGULATING THE FLOW OF FLUID TO SAID DENTAL INSTRUMENT; WHEREBY, THE DENTAL INSTRUMENT WHEN NOT IN USE, AS WELL AS THE FLUID REGULATION MEANS THEREFOR, ARE ALWAYS CONVENIENTLY POSITIONED AT AND MOVABLE DIRECTLY WITH THE TRAY MEANS READILY ACCESSIBLE BY THE DENTIST.