Abstract: A novel metering device (1) for dispensing a dose of a pressurized fluid is described. A dispensing valve body (3) is mounted in a fluid-tight manner to the lid (4) of a pressurized container (5), which circumvents a valve element (9). A valve delivery tube (10) is connected to the valve element (9). A chamber (13) surrounds the valve body (3), in which a piston (17) is reciprocable between an upper and a lower position, which define the dispensing dose. A clearance is provided between the piston (17) and the inner wall (23) of the chamber (13), such that pressurized fluid can flow into the chamber based on a pressure difference between the container (5) and the chamber (13), and the piston (17) is adapted to seal the valve body (3) when being in the upper position.

Abstract: A novel metering device (1) for dispensing a dose of a pressurized fluid is described. A dispensing valve body (3) is mounted in a fluid-tight manner to the lid (4) of a pressurized container (5), which circumvents a valve element (9). A valve delivery tube (10) is connected to the valve element (9). A chamber (13) surrounds the valve body (3), in which a piston (17) is reciprocable between an upper and a lower position, which define the dispensing dose. A clearance is provided between the piston (17) and the inner wall (23) of the chamber (13), such that pressurized fluid can flow into the chamber based on a pressure difference between the container (5) and the chamber (13), and the piston (17) is adapted to seal the valve body (3) when being in the upper position.

Abstract: A new apparatus is described for storing and dispensing a masking film, which apparatus comprises a housing body enclosing a roll compartment for receiving a roll of film, as well as a housing floor, a housing cover and a cutting apparatus. The housing body further comprises a dispensing slot for removing a masking film which is parallel to the roll axis and a cutting slot which is parallel thereto. A holder guide means is arranged in the housing cover, in which the cutting apparatus (4) with the blade held by the blade holder is movable along the cutting slot. A leaf spring provided on the blade holder holds the blade in the guide slot when the cutting apparatus is not used. When cutting is performed, the blade is pressed out of the guide slot into the cutting slot by pressing against the blade holder and the film is severed by simultaneous movement of the cutting apparatus along the cutting slot.