Low pressure 2-K handheld spray gun
AssigneeStrongbond B.V.
InventorsRudolph Frank de Block, Antonius Wilhelmus Zaarbelink
Life of this patent
Estimating the term…
Abstract
A low pressure limited overspray handheld aerosol spray gun for spraying a two-component adhesive, a method for spraying a two-component adhesive and a two-component adhesive obtainable by that method. In manufacturing of larger objects, such as matrasses and furniture, adhesives are often applied to fix parts of the large object together. Most adhesives are applied using either air-spray equipment or air-assisted spray equipment.
Claims10
A low pressure limited overspray handheld aerosol spray gun for spraying a two-component adhesive comprising 80-97 wt. % of a first fluid and 3-20 wt. % of a second fluid, the wt. percentage calculated on a combined first and second fluid, comprising:
- (a) a first and second connection for supply of the first and second fluid, respectively,
- (b) one first nozzle and one second nozzle, wherein the first nozzle has an opening with a first area, wherein the second nozzle has an opening with a second area, wherein a ratio between the first area and the second area is between 0.2 and 5,
- (c) a separate fluid passageway for the first and second fluid between the connection and nozzle, respectively,
- (d) a first and second mechanism for opening and closing of the passage way of each fluid to the nozzle,
- (e) a trigger for simultaneous control of the mechanisms, a third fluid passageway for providing air,
- (g) a chamber wherein the second and third passage ways enter and from which access to the second nozzle is provided, and
- (h) a first removable nozzle tip attached to the first nozzle, and
- wherein the first nozzle tip has a slit incorporated therein, and
- wherein the system is capable of withstanding a first fluid airless pressure of 200-800 kPa (2-8 Bar) and capable of withstanding a second fluid air-assisted pressure of 12-100 kPa (0.12-1.0 Bar).
Dependencies are inferred from the claim text.