Spraying device
OwnerAlfred Göhringinventor
Life of this patent
Estimating the term…
Abstract
A high volume-low pressure spraying device for viscous media, such as paint. The device is adapted to spray highly viscous media with relatively low air pressure and low flow resistance.
Claims7
A spraying device (1) for atomising and applying viscous media (5), the device comprising:
- a gun housing (2) having therein a delivery line (9), and a ring duct (10) enclosing the delivery line (9), and a blower (8) or a compressed air source by means of which a jet of air (24) is forced into the ring duct (10) through an inlet opening (25) in said gun housing (2), and a removable reservoir (4) attached to said gun housing (2) in which the medium (5) to be processed is filled and which is connected to the jet of air (24) from the ring duct (10) by means of a hose (13), and a riser pipe (14) in communication with the delivery line (9) and in the reservoir (4), through which the medium (5) can be forced towards the delivery line (9) by means of air pressure (40) generated by said blower (8), and a valve body (12) supported in the delivery line (9) in an axially mobile arrangement, by means of which an outlet opening (11) communicating with the delivery line (9) can be closed or opened,
- and wherein
- a cross-sectional surface (15) of said riser pipe (14) is 80 mm2-200 mm2.
A spraying device (1) for atomising and applying viscous media (5), the device comprising a gun housing (2) having therein a delivery line (9) and a ring duct (10) enclosing the delivery line (9), and a blower (8) or a compressed air source by means of which a jet of air (24) is forced into the ring duct (10) through an inlet opening (25) in said gun housing (2), and a removable reservoir (4) attached to said gun housing (2) in which the medium (5) to be processed is filled and which is connected to the jet of air (24) from said ring duct (10) by means of a hose (13), and a riser pipe (14) in communication with the delivery line (9) and in said reservoir (4), through which the medium (5) can be forced through said riser pipe (14) towards the delivery line (9) by means of air pressure (40) generated by said blower (8), and with a valve body (12) supported in the delivery line (9) in an axially mobile arrangement, by means of which an outlet opening (11) communicating with the delivery line (9) can be closed or opened,
- and wherein
- the ratio between a cross-sectional area (15) of said riser pipe (14) and a cross-sectional area (16) of the outlet opening is between 25 and 41.
Dependencies are inferred from the claim text.