US3858812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray nozzle for low pressure spray and uniform spray pattern
Assignee: Spraying Systems Co
•
Filing: 1973-11-23
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Granted: 1975-01-07
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Expires: 1993-11-23
Abstract
Abstract A spray nozzle with spaced projections at the entrance end of the nozzle passage leading to the orifice to promote uniformity of spray.
Inventors
- 👤 Robert P Williams
- 👤 Ted Lee Butterfield
- 👤 Lyle J Emory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:03
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/02; B05B1/04; B05B1/048; B05B1/14; B05B15/00; B05B15/40; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49432; Y10T29/49433
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
142 words
A spray nozzle suitable for use at relatively low spraying pressures and for defining a spray pattern of oval-shaped form and with a tapered distribution of the spray pattern at the edges thereof, comprising a nozzle body having a cylindrical passage therein, said passage having an open entrance end and a discharge end terminating at a wall extending across the passage, an orifice in said wall and extending across the axis of said passage, said orifice being disposed symmetrically relative to the axis of said passage and being oval in form, said passage having a plurality of spaced protuberances formed in the wall thereof adjacent the entrance end of the passage whereby the entrance end of the passage has a generally oval cross-sectional shape, said protuberances extending from the entrance end of said passage toward said discharge end by a short distance.
Claim 2
Dependent Claim
142 words
A spray nozzle suitable for use at relatively low spraying pressures and for defining a spray pattern of oval-shaped form and with a tapered distribution of the spray pattern at the edges thereof, comprising a nozzle body having a cylindrical passage therein, said passage having an open entrance end and a discharge end terminating at a wall extending across the passage, an orifice in said wall and extending across the axis of said passage, said orifice being disposed symmetrically relative to the axis of said passage and being oval in form, said passage having a plurality of spaced protuberances formed in the wall thereof adjacent the entrance end of the passage whereby the entrance end of the passage has a generally oval cross-sectional shape, said protuberances extending from the entrance end of said passage toward said discharge end by a short distance.
Claim 3
Dependent Claim
24 words
A nozzle as defined in claim 1 wherein said protuberances are formed by upsetting the wall defining the approach area of the nozzle passage.
Claim 4
Dependent Claim
23 words
A nozzle as defined in claim 1 wherein said protuberances are aligned with a line perpendicular to the major axis of said orifice.
Claim 5
Dependent Claim
18 words
A nozzle as defined in claim 1 wherein the nozzle is defined by a single body of material.
Claim 6
Dependent Claim
46 words
A nozzle as defined in claim 1 wherein said body is defined by a multi-piece assembly of material, at least two of said pieces defining said cylindrical passage, one of said pieces being disposed at the entrance end of said passage and having said protuberances therein.
Claim 7
Dependent Claim
35 words
A nozzle as defined in claim 1 wherein said body has a counterbore defining a shoulder around the entrance end of said cylindrical passage, said shoulder having grooves therein adjacent the material defining said protuberances.
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) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |