Dispensing – With discharge assistant – Insertable cartridge or removable container
Patent
1978-06-30
1979-12-25
Knowles, Allen N.
Dispensing
With discharge assistant
Insertable cartridge or removable container
222333, 222390, 744248A, 192141, B67D 546
Patent
active
041801873
ABSTRACT:
An automatic piston drive mechanism for use in dispensing flowable compound material through an orifice of a housing in which the material is contained. The housing may be that of a caulking gun or else that of a cartridge as insertable on a carriage of a caulking gun support frame. The drive mechanism comprises a piston member having an elongated rod and a pusher head. A drive motor is provided for imparting longitudinal displacement of the rod. A clutch member is rotatably driven by the drive motor and releasably connected to the rod to impart axial rotation thereto to effect axial displacement whereby the pusher head will apply pressure to the compound to push it through the dispensing orifice.
REFERENCES:
patent: 3861567 (1975-01-01), Davis
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