(57) A marking device for mounting on the valve stem of a pressurized dispenser having
a valve actuated by said valve stem, said container having a marking material and
a propellant medium therein, said marking device comprising a mark-forming member,
provided with an axial bore, said mark-forming member being adapted to be connected
with the valve stem so that there is provided communication between the axial bore
and a dispensing passage in the valve stem when the valve stem is actuated so as to
dispense the marking material from the mark-forming member, said mark-forming member
having a surface for contacting an object to be marked, said surface having disposed
therein one or a plurality of open grooves extending radially from the axial bore
to the outer periphery of the surface, characterized by the fact that said grooves
(19; 19') have facing side walls (21, 22; 21', 22') angularly disposed with respect
to each other so as to diverge in the direction of the surface (20; 20') in which
the grooves (19, 19') are disposed.
|
|
