Patent ID: 7984710

Claim:
A Hand-held device for apportioned delivery of sprayable substances comprising: a cartridge which is displaceable by pressing in a housing into an open position for delivery, and a step-action indexing mechanism which is actuated by the cartridge during an opening stroke thereof via an annular scale ring that extends circumferentially in front of one or more viewing windows, the step-action indexing mechanism comprising: a planet gear, a sun gear and a disk, the sun gear being seated on the disk, the disk being toothed on its underside, a ring having a toothed rim formed on its inner wall, the toothed rim interacting with the planet gear, the ring having slots passing through it in diametrically opposite regions, these slots extending, directed obliquely upward, in the indexing direction and opening out downward in the direction of an annular edge which is directed away from the toothed rim, a latching finger integrally formed on the inside of the inner wall of the ring, the latching finger being offset radially inward in relation to the toothed rim, and a step-action indexing finger star, wherein the step-action indexing mechanism and the annular scale ring are disposed in a plate-like indexing mechanism housing, centrally and non-rotatably beneath an opening-side end wall of the cartridge, in overlap with a valve tube of the cartridge, in such a way that the step-action indexing mechanism components and the annular scale ring are located around an axis extending in the longitudinal direction of the cartridge, characterized in that the plate-like indexing mechanism housing together with the enclosed annular scale ring goes down, during actuation, behind the one or more viewing windows of the housing of the hand-held device.