Electrically operated dispensing appliance including mechanical means for preventing afterflow of the dispensed product
OwnerWilhelm A. Kellerinventor
Life of this patent
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Abstract
The electric dispensing appliance is designed for a double cartridge and comprises a driving spindle which actuates the two thrust rods. In order to prevent an afterflow of the dispensed composition, the driving spindle is rotatably attached to a connecting piece which is longitudinally displaceable with respect to the housing. A double toggle articulation provides a reversible mechanical connection between the housing and the connecting piece, one lever being connected to the housing, a second lever to the connecting piece, and a third lever to the other ends of the first two levers and to the trigger lever of the appliance. The use of a simple mechanical device such as a toggle joint allows an effective suppression of any afterflow.
Claims13
An electrically operated dispensing appliance including at least one cartridge containing a composition to be dispensed, comprising:
- a housing;
- a driving spindle, having first and second ends, movable in an axial direction in the housing;
- at least one thrust rod movable along and driven by said driving spindle;
- electric drive means disposed in the housing for driving said driving spindle and thrust rod, the electric drive means including an operating switch;
- mechanical means associated with said driving spindle for retracting said driving spindle and said at least one thrust rod, the mechanical means including a plurality of levers;
- and
- a trigger lever connected to said mechanical means, wherein when said trigger lever is released said mechanical means axially retracts said at least one thrust rod and said driving spindle, and said operating switch is actuated by said trigger lever to stop the electric drive means, to immediately suppress any afterflow of the dispensed composition.
Dependencies are inferred from the claim text.