Pneumatic glue dispenser

Claim 1

HAND-HELD PNEUMATIC APPARATUS UTILIZING A GAS PRESSURE SOURCE FOR DISPENSING A FLUID AT A CONTROLLED RATE, COMPRISING: MEANS DEFINING AN ELONGATED RESERVOIR FOR SAID FLUID AND TERMINATING AT ITS LOWER END IN A NEDDLE ORIFICE; HOLLOW MEMBER MEANS HAVING AN OPENING AT ITS UPPER END AND COUPLED TO SAID RESERVOIR MEANS AT A POSITION LOCATED ABOVE THE FLUID CONTAINED THEREIN; A PRESSURIZED GAS INLET LINE COUPLED TO SAID PRESSURE SOURCE AND TO SAID OPENING AND ADAPTED TO FORM DURING OPERATION OF SAID APPARATUS A CLOSED PRESSURIZED SYSTEM INCLUDING SAID MEMBER AND SAID RESERVOIR; AND A SECOND OPENING LOCATED IN SAID HOLLOW MEMBER MEANS TO SERVE AS AN OUTLET FOR SAID PRESSURIZED GAS FROM SAID SYSTEM, SAID SECOND OPENING ADAPTED TO BE COVERED WITHOUT SUBSTANTIAL PRESSURE BY THE INDEX FINGER IN THE NORMAL GRASPING OF THE APPARATUS BETWEEN THE THUMB AND INDEX FINGER DURING OPERATION THEREOF TO FACILITATE TO CONVENIENT, SIMULTANEOUS GUIDING OF SAID APPARATUS AND DISPENSING OF SAID FLUID THROUGH SAID NEEDLE ORIFICE AT A PRECISE RATE PROPORTIONAL TO THE PREDETERMINED PRESSURE EXERTED BY SAID GAS.