Dispenser with quick-release drive screw

Details Dispenser with quick-release drive screw Dispenser with quick-release drive screw

1982-04-27

1984-12-04

Bartuska, F. J.

Dispensing

With discharge assistant

Container with follower

411433, 411437, B65D 8300

Patent

active

044859449

ABSTRACT:
A screw-actuated dispenser comprising a receptacle for accommodating a cartridge containing viscous material such a caulk, grease or the like. The receptacle has opposing endwalls between which the cartridge is confined. An elongate drive screw is threadably engaged with a threaded opening in the rear endwall and is extensible within and retractable from the opening and relative to the body by rotation. A slot extends partially along the length of the body and connects with the rear wall opening. A wedge is positioned in the slot, expanding the opening and urging the threads on the drive screw and those within the opening out of engagement with the screw such that the drive screw is freely slidable longitudinally relative to the receptacle. To engage the drive screw in the opening, the slot is compressed by a sleeve extended over an extension of the rear wall on opposite sides of the slot.

REFERENCES:
patent: 1876797 (1932-09-01), Treleven
patent: 2421711 (1947-06-01), Moots et al.
patent: 2956563 (1960-10-01), Sarnoff
patent: 3250443 (1966-05-01), Abbott, Jr.
patent: 3358699 (1967-12-01), Bau
patent: 3842877 (1974-10-01), Andrews
patent: 4253589 (1981-03-01), Kiste, Jr.

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