Abstract: The device is based on a metering chamber which is designed to be screwed onto a tube and which has inlet and outlet openings for the product. The product is dispensed by a plunger displaceable in the metering chamber. An axially displaceable plate valve is arranged between the plunger and the bottom of the metering chamber. The valve plate is provided with holes for the passage of product. The plate valve functions such that the valve plate closes the outlet opening during filling of the metering chamber and the inlet openings during emptying of the metering chamber. The dispenser may be screwed onto standard commercial tube packs for the application of salves or pastes.

Abstract: A pistol applicator has a piston handle and a hand hold which are drawn towards each other during application and a piston cylinder housing. An adjustable dose regulating device is provided including a dose regulating wheel fixed to the cylinder housing and rotatable about the longitudinal axis of the cylinder housing and a plurality of notches in the dose regulating wheel each having a different radial extent. An outwardly tapering stepped cross piece is attached to the piston handle and is insertable in one preselected notch at a time, wherein one step of the crosspiece is engageable with the preselected one of the notches upon operating the applicator piston to limit the stroke thereof and thereby regulate the dose applied.