Method of loading a hand grease gun with a grease cartridge

Claim 1

THE METHOD OF LOADING A HAND GREASE GUN WITH A GREASE-CONTAINING CARTRIDGE, SAID GREASE GUN INCLUDING A CYLINDRICAL BARREL HAVING AN OPEN FRONT END, A DETACHABLE FRONT CAP FOR CLOSING SAID END, A PLUNGER ASSEMBLY WITHIN SAID BARREL MOVABLE FROM A POSITION AT THE REAR OF SAID BARREL TO A FORWARD POSITION ADJACENT THE SAID FRONT END THEREOF, SAID GREASE CARTRIDGE INCLUDING A TUBULAR CONTAINER RECEIVABLE WITHIN SAID BARREL AND HAVING AN OPEN REAR END THROUGH WHICH SAID PLUNGER ASSEMBLY CAN BE INSERTED, AND THE FRONT END PORTION OF SAID CARTRIDGE EXTENDING AROUND AN OPENING FOR THE DISCHARGE OF GREASE, SAID GREASE GUN ASLO BEING PROVIDED WITH SEALING GASKET MEANS MOUNTED WITHIN SAID FRONT CAP, SAID GASKET MEANS INCLUDING AN ANNULAR PORTION FOR SEALINGLY ENGAGING SAID CARTRIDGE FRONT END PORTION AROUND SAID DISCHARGE OPENING, CHARACTERIZED BY THE STEPS OF: (A) REMOVING SAID FRONT CAP PREPARATORY TO THE INSERTION OF SAID GREASE CARTRIDGE AND PERMITTING SAID PLUNGER ASSEMBLY TO MOVE TO A FORWARD POSITION; (B) INSERTING THE REARWARD PORTION OF SAID CARTRIDGE INTO THE FRONT END PORTION OF SAID CYLINDER WITH SAID PLUNGER ASSEMBLY ALIGNED WITH SAID CARTRIDGE OPEN REAR END FOR INSERTION THEREIN, THE REST OF SAID CARTRIDGE PROJECTING OUTWARDLY BEYOND THE FRONT END OF SAID BARREL; (C) APPLYING SAID FRONT CAP OVER THE PROJECTING FRONT END PORTION OF SAID CARTRIDGE, SAID ANNULAR PORTION OF SAID GASKET MEANS SEALINGLY ENGAGING THE FRONT END PORTION OF SAID CARTRIDGE AROUND SAID OPENING; AND (D) INSERTING SAID CARTRIDGE BY FORCING SAID BARREL CAP TOWARD SAID BARREL FRONT END TO CAUSE SAID PLUNGER ASSEMBLY TO MOVE TOWARD A REARWARD POSITION, SAID CARTRIDGE MOVING INTO SAID BARREL AND RECEIVING SAID PLUNGER ASSEMBLY WHILE MAINTAINING THE SAID SEALING ENGAGEMENT BETWEEN SAID GASKET ANNULAR PORTION AND CARTRIDGE FRONT END PORTION.

Claim 2

THE METHOD OF LOADING A HAND GREASE GUN WITH A GREASE-CONTAINING CARTRIDGE, SAID GREASE GUN INCLUDING A CYLINDRICAL BARREL HAVING AN OPEN FRONT END, A DETACHABLE FRONT CAP FOR CLOSING SAID END, A PLUNGER ASSEMBLY WITHIN SAID BARREL MOVABLE FROM A POSITION AT THE REAR OF SAID BARREL TO A FORWARD POSITION ADJACENT THE SAID FRONT END THEREOF, SAID GREASE CARTRIDGE INCLUDING A TUBULAR CONTAINER RECEIVABLE WITHIN SAID BARREL AND HAVING AN OPEN REAR END THROUGH WHICH SAID PLUNGER ASSEMBLY CAN BE INSERTED, AND THE FRONT END PORTION OF SAID CARTRIDGE EXTENDING AROUND AN OPENING FOR THE DISCHARGE OF GREASE, SAID GREASE GUN ASLO BEING PROVIDED WITH SEALING GASKET MEANS MOUNTED WITHIN SAID FRONT CAP, SAID GASKET MEANS INCLUDING AN ANNULAR PORTION FOR SEALINGLY ENGAGING SAID CARTRIDGE FRONT END PORTION AROUND SAID DISCHARGE OPENING, CHARACTERIZED BY THE STEPS OF: (A) REMOVING SAID FRONT CAP PREPARATORY TO THE INSERTION OF SAID GREASE CARTRIDGE AND PERMITTING SAID PLUNGER ASSEMBLY TO MOVE TO A FORWARD POSITION; (B) INSERTING THE REARWARD PORTION OF SAID CARTRIDGE INTO THE FRONT END PORTION OF SAID CYLINDER WITH SAID PLUNGER ASSEMBLY ALIGNED WITH SAID CARTRIDGE OPEN REAR END FOR INSERTION THEREIN, THE REST OF SAID CARTRIDGE PROJECTING OUTWARDLY BEYOND THE FRONT END OF SAID BARREL; (C) APPLYING SAID FRONT CAP OVER THE PROJECTING FRONT END PORTION OF SAID CARTRIDGE, SAID ANNULAR PORTION OF SAID GASKET MEANS SEALINGLY ENGAGING THE FRONT END PORTION OF SAID CARTRIDGE AROUND SAID OPENING; AND (D) INSERTING SAID CARTRIDGE BY FORCING SAID BARREL CAP TOWARD SAID BARREL FRONT END TO CAUSE SAID PLUNGER ASSEMBLY TO MOVE TOWARD A REARWARD POSITION, SAID CARTRIDGE MOVING INTO SAID BARREL AND RECEIVING SAID PLUNGER ASSEMBLY WHILE MAINTAINING THE SAID SEALING ENGAGEMENT BETWEEN SAID GASKET ANNULAR PORTION AND CARTRIDGE FRONT END PORTION.