US4579286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-orifice airless spray nozzle
Assignee: Nordson Corp
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Filing: 1983-09-23
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Granted: 1986-04-01
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Expires: 2003-09-23
Abstract
Abstract An airless spray coating nozzle having at least two orifices formed by the interpenetration of a plurality of grooves through a nozzle tip. The pressurized side or backside of the nozzle tip includes a single groove, and the unpressurized side of the tip includes two parallel grooves. Each parallel groove interpenetrates the backside groove, thereby forming orifices through the tip. The nozzle tip is used to spray a wide, flat spray pattern of coating material having an even distribution of coating material across the spray pattern even when the coating material is applied at a high flow rate.
Inventors
- 👤 George W. Stoudt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:46
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/02; B05B1/04; B05B1/048; B05B1/042; B05B1/14
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
91 words
A spray nozzle comprising means to provide a wide flat fan pattern at a high flow rate; said means including a nozzle tip; said tip having a first and second orifice; a first groove on a first side of said tip; and a second and third groove on a second side of said tip wherein said second and third grooves each have trapezoidal cross sections and each being parallel to each other and perpendicular to said first groove, and each interpenetrate said first groove, thereby defining said first and second orifices.
Claim 2
Dependent Claim
91 words
A spray nozzle comprising means to provide a wide flat fan pattern at a high flow rate; said means including a nozzle tip; said tip having a first and second orifice; a first groove on a first side of said tip; and a second and third groove on a second side of said tip wherein said second and third grooves each have trapezoidal cross sections and each being parallel to each other and perpendicular to said first groove, and each interpenetrate said first groove, thereby defining said first and second orifices.
Claim 3
Dependent Claim
15 words
The spray nozzle claimed in claim 1 wherein said first groove is a wedge-shaped groove.
Claim 4
Dependent Claim
30 words
The spray nozzle claimed in claim 1 wherein the flow rate through said nozzle of water at a pressure of 500 psi is at least about 0.30 gallons per minute.
Claim 5
Dependent Claim
46 words
The spray nozzle claimed in claim 3 wherein said tip produces a flat spray pattern of liquid when the nozzle is connected to a source of fluid under pressure, said pattern having a width of at least about 26 inches at 10 inches from said tip.
Claim 6
Dependent Claim
96 words
A spray nozzle comprising means to provide a wide flat fan pattern at a high flow rate; said means including a nozzle tip; said tip having at least two orifices; at least one groove on a first side of said tip; and at least two grooves on a second side of said tip, said grooves on said second side each having a trapezoidal cross section and each being perpendicular to said groove on said first side and wherein said grooves on said second side each interpenetrate each groove on said first side, thereby defining said orifices.
Claim 7
Dependent Claim
96 words
A spray nozzle comprising means to provide a wide flat fan pattern at a high flow rate; said means including a nozzle tip; said tip having at least two orifices; at least one groove on a first side of said tip; and at least two grooves on a second side of said tip, said grooves on said second side each having a trapezoidal cross section and each being perpendicular to said groove on said first side and wherein said grooves on said second side each interpenetrate each groove on said first side, thereby defining said orifices.
Claim 8
Dependent Claim
28 words
The spray nozzle claimed in claim 5 wherein said groove on said first side is a wedge shaped groove having a substantially straight bottom edge and two sidewalls.
Claim 9
Dependent Claim
30 words
The spray nozzle claimed in claim 5 wherein the flow rate through said nozzle of water at a pressure of 500 psi is at least about 0.30 gallons per minute.
Claim 10
Dependent Claim
46 words
The spray nozzle claimed in claim 7 wherein said tip produces a flat spray pattern of liquid when the nozzle is connected to a source of liquid under pressure, said pattern having a width of at least about 26 inches at 10 inches from said tip.
Claim 11
Dependent Claim
87 words
A spray nozzle comprising means to provide a wide flat fan pattern at a high flow rate; said means including a nozzle tip; said tip having a first and second orifice; a first linear groove extending completely across a first side of said tip; a second and third linear groove on a second side of said tip wherein said second and third grooves are parallel to each other and perpendicular to said first groove and each interpenetrate said first groove, thereby defining said first and second orifices.
Claim 12
Dependent Claim
87 words
A spray nozzle comprising means to provide a wide flat fan pattern at a high flow rate; said means including a nozzle tip; said tip having a first and second orifice; a first linear groove extending completely across a first side of said tip; a second and third linear groove on a second side of said tip wherein said second and third grooves are parallel to each other and perpendicular to said first groove and each interpenetrate said first groove, thereby defining said first and second orifices.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |