Dispensing – With cutter and/or punch – To form dispensing opening in container
Patent
1981-07-02
1986-11-25
Rolla, Joseph J.
Dispensing
With cutter and/or punch
To form dispensing opening in container
222 89, 604240, B67D 508
Patent
active
046243933
ABSTRACT:
A split hub assembly for use in conjunction with a cartridge assembly including a cylindrical cartridge tube having a necked down end terminating in an annular flange, the split hub assembly including a needle holder having a forward and a rearward end with a passage connecting the ends. A cylindrical body extends from the rearward end of the needle holder and surrounds a hollow spike extending from the rearward end of the needle holder in communication with the passage in the holder. A pluarlity of flexible segments extend rearwardly from the rearward end of the cylindrical body, each segment having a locking lip extending inwardly from the free end of the segment. The cylindrical body has a first locking portion adjacent the forward end portion of the body and a second locking portion adjacent the forward end portion of the body and a second locking portion adjacent the rearward end of the body. A locking portion comprising a cylindrical sleeve has an inturned locking member on its forward end which is sized to engage the first and then the second locking portion, whereby, with the locking member engaging the first locking portion on the cylindrical body and the flexible segments positioned over and around the annular flange on the necked end of the cartridge tube, rearward movement of the locking portion causes the cylindrical sleeve to engage the flexible segments and force them inwardly whereby the locking lips fit in against the rearward portion of the annular flange to secure the split hub assembly to the cartridge tube while the locking member engages the second locking portion to retain the locking means in position.
REFERENCES:
patent: 2158593 (1939-05-01), Scrimgeour
patent: 2957501 (1960-10-01), Holmes
patent: 3739779 (1973-06-01), Pfleger
patent: 3989044 (1976-11-01), Meierhoefer
patent: 4334536 (1982-06-01), Pfleger
Rolla Joseph J.
Survival Technology Inc.
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