Plant injection device

Claim 1

A DEVICE FOR INJECTING A QUANTITY OF LIQUID INTO A PLANT, COMPRISING: A PAIR OF CUP-SHAPED, INTERFITTING BODY SECTIONS HAVING IMPERFORATE SIDE WALLS THAT SLIDABLY ENGAGE EACH OTHER WITH A FLUID-TIGHT FIT, SAID BODY SECTIONS COOPERATING TO ENCLOSE A SINGLE UNDIVIDED INTERIOR SPACE OF WHICH THE VOLUME IS VARIED BY RELATIVE AXIAL MOVEMENT OF THE BODY SECTIONS; LOCKING MEANS CARRIED ON THE BODY SECTIONS COMPRISING INTERENGAGEABLE CONFIGURATION ON THE BODY SECTIONS, THE FIRST BODY SECTION HAVING TWO SIMILAR CONFIGURATIONS AT AXIALLY SPACED POSITIONS AND THE SECOND BODY SECTION HAVING A SINGLE COMPLEMENTARY CONFIGURATION ENGAGEABLE WITH EITHER OF THE SIMILAR CONFIGURATIONS TO PREVENT RELATIVE AXIAL MOTION OF THE BODY SECTIONS IN A DIRECTION TO SEPARATE THE BODY SECTIONS BUT DISENGAGEABLE FROM ONE OF SAID SIMILAR CONFIGURATIONS TO ENGAGE THE OTHER OF SAID SIMILAR CONFIGURATIONS BY RELATIVE AXIAL MOVEMENT OF THE TWO BODY SECTIONS IN A DIRECTION TO REDUCE THE VOLUME OF SAID INTERIOR SPACE; A QUANTITY OF LIQUID IN SAID SPACE HAVING A VOLUME LESS THAN SAID REDUCED VOLUME OF THE SPACE, THE REMAINDER OF THE SPACE BEING FILLED WITH A GAS IN CONTACT WITH SAID LIQUID; PASSAGE MEANS IN ONE CONTAINER SECTION FOR DISCHARGING THE LIQUID; AND A DISCHARGE TUBE SLIDABLY RECEIVED IN THE DISCHARGE PASSAGE WITH A FLUID-TIGHT FIT WITH THE SIDES OF THE PASSAGE.