Aerosol powder marking device

Claim 2

A marking device comprising a pressurized dispenser having a valve including a dispensing passage, a marking material and propellant medium within the dispenser, and a valve actuating pattern member adapted to be associated with the valve stem, said pattern member having a surface for contacting the object to be marked, said surface lying in a plane generally transverse to the direction of actuating motion of the valve and being provided with open grooves which are in communication with the dispensing valve passage.

Claim 3

The device of claim 1 wherein said pattern member is provided with an axial bore in communication with the dispensing passage and wherein said grooves in said surface extend from said bore through the periphery of said surface.

Claim 4

The device of claim 2 wherein the pattern member is provided with two surfaces transverse of said bore, each surface being provided with grooves to define differing patterns.

Claim 5

The device of claim 1 wherein the grooves are provided with vents to exhaust the propellant medium and any excess of marking material.

Claim 6

A marking device comprising in combination, an aerosol dispenser and a pattern plate, said dispenser containing a quick drying marking material and a gaseous propellant, a resiliently biased dispenser valve having a hollow stem through which said coloring material and propellant may be discharged, said pattern plate having a plurality of interconnected grooves defining a particular pattern in one face, an input passage extending from said face and adapted to communicate said grooves with said hollow stem, a plurality of vents extending through said pattern plate and in communication with said grooves at points remote from said input passage, said pattern plate being adapted to cause said marking material to be impinged on a surface to be marked in a pattern defined by said grooves when said pattern marker grooved face is placed in contact with said surface and said dispenser is pressed toward said surface to open said valve.

Claim 7

A marking device comprising in combination, an aerosol dispenser and a pattern plate, said dispenser containing a quick drying marking material and a gaseous propellant, a resiliently biased dispenser valve having a hollow stem through which said coloring material and propellant may be discharged, said pattern plate having a plurality of interconnected grooves defining a particular pattern in one face, an input passage extending from said face and adapted to communicate said grooves with said hollow stem, a plurality of vents extending through said pattern plate and in communication with said grooves at points remote from said input passage, said pattern plate being adapted to cause said marking material to be impinged on a surface to be marked in a pattern defined by said grooves when said pattern marker grooved face is placed in contact with said surface and said dispenser is pressed toward said surface to open said valve.

Claim 8

The device of claim 1 wherein the primary constituent of the marking material is powdered silica and the propellant gas is a gas which is liquified at the pressure within the dispenser.

Claim 9

A marking device comprising in combination means for storing a marking material and propellant, means for simultaneously conveying the marking material and propellant to a pattern-forming member, said pattern-forming member having grooves in a substantially flat target-contacting surface, which grooves have propellant venting apertures near their terminal ends to exhaust propellant from the grooves in a direction away from the target-contacting surface.

Claim 10

A marking device comprising in combination means for storing a marking material and propellant, means for simultaneously conveying the marking material and propellant to a pattern-forming member, said pattern-forming member having grooves in a substantially flat target-contacting surface, which grooves have propellant venting apertures near their terminal ends to exhaust propellant from the grooves in a direction away from the target-contacting surface.