Electrically operated dispensing appliance having two electric m

Details Electrically operated dispensing appliance having two electric m Electrically operated dispensing appliance having two electric m

1993-09-02

1995-11-07

Kashnikow, Andres

Dispensing

With discharge assistant

Motor operated

318 38, 318 76, B67D 542

Patent

active

054641284

ABSTRACT:
The electrically operated dispensing appliance comprises two electric motors (1, 26), one of the electric motors (1) acting upon the driving screw (70) through a first gear drive (2) having a greater reduction ratio in order to rotate the driving screw in the advancing direction, and the other one of the electric motors (26) acting upon the driving screw (70) through a second gear drive (27) having a smaller reduction ratio in the other direction in order to retract the driving screw for relieving a dispensing cartridge and in order to turn the driving screw back when the thrust rod(s) (15) are retracted in order to exchange the storage cylinders. A coupling member (3) is arranged between the first drive (1, 2) and the driving screw (70), and two coupling members (97, 102) are arranged between the second drive (26, 27) and the driving screw (70) and are connected to each other by a pivoting lever (82) in such a manner that all of the coupling members are switched over from the advancing position to the retracting position and vice versa by moving the pivoting lever. Such an arrangement provides an effective discharge when the appliance is switched off, thus preventing an afterflow of the substance from the storage cylinders, and allows a relatively simple construction of the entire appliance.

REFERENCES:
patent: 3208638 (1965-09-01), Frenzel et al.
patent: 3854629 (1974-12-01), Blieberger
patent: 4180187 (1979-12-01), Ben-Haim
patent: 4260076 (1981-04-01), Bergman
patent: 4335834 (1982-06-01), Zepkin
patent: 5203476 (1993-04-01), Keller
Abstract of Japanese Patent No. JP 61-227868 for "Machine for Filling Filler Such as Joint Mortar", Published Oct. 9, 1986.

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