US3684176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsation impact spray nozzle
Assignee: Rain Jet Corp
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Filing: 1970-07-27
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Granted: 1972-08-15
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Expires: 1990-07-27
Abstract
Abstract A nozzle for producing an impacting pulsating spray of liquid comprises a hollow elongate tube having an inner chamber and a pair of spaced inlet and outlet plugs fitted one in each opposite end of the tube thereby to define the chamber. The outlet plug has an axial funnel-shaped duct defined therethrough with the flare of the duct open to the exterior of the nozzle. The inlet plug has a duct defined therethrough with its mean crosssectional area substantially less than the mean cross-sectional area of the chamber. Liquid is fed into the chamber through the inlet plug and emerges out of the nozzle through the outlet plug as a randomly pulsating conical spray having a high impacting force.
Inventors
- 👤 John O Hruby Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:27
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/02; B05B1/08; F; F15; F15C; F15C1/00; F15C1/22
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
139 words
A nozzle for producing an impacting pulsating liquid spray comprising a. a body defining an elongate inner chamber having opposite inlet and outlet ends spaced along an axis of the chamber; b. an outlet duct defined through the chamber outlet end and having a cross-sectional area substantially less than the mean transverse cross-sectional area of the chamber and a length greater than its mean transverse dimension, the outlet duct including an outwardly flared conical-shaped outlet portion open to the exterior of the body; and c. an inlet duct defined through the inlet end of the chamber and having a mean cross-sectional area substantially less than the mean transverse cross-sectional area of the chamber and less than the effective cross-sectional area of the outlet duct, the inlet duct having a longitudinal axis disposed oblique to the axis of the chamber.
Claim 2
Dependent Claim
139 words
A nozzle for producing an impacting pulsating liquid spray comprising a. a body defining an elongate inner chamber having opposite inlet and outlet ends spaced along an axis of the chamber; b. an outlet duct defined through the chamber outlet end and having a cross-sectional area substantially less than the mean transverse cross-sectional area of the chamber and a length greater than its mean transverse dimension, the outlet duct including an outwardly flared conical-shaped outlet portion open to the exterior of the body; and c. an inlet duct defined through the inlet end of the chamber and having a mean cross-sectional area substantially less than the mean transverse cross-sectional area of the chamber and less than the effective cross-sectional area of the outlet duct, the inlet duct having a longitudinal axis disposed oblique to the axis of the chamber.
Claim 3
Dependent Claim
31 words
A nozzle according to claim 1 in which the inlet duct has its axis disposed eccentric to the axis of the chamber at one of the ends of the inlet duct.
Claim 4
Dependent Claim
17 words
A nozzle according to claim 1 in which the inlet duct has an essentially rectangular cross-sectional configuration.
Claim 5
Dependent Claim
20 words
A nozzle according to claim 1 in which the inlet duct is disposed skew to the axis of the chamber.
Claim 6
Dependent Claim
16 words
A nozzle according to claim 1 wherein the outlet duct is aligned coaxially with the chamber.
Claim 7
Dependent Claim
51 words
A nozzle according to claim 1 including a second inlet duct defined through the inlet end of the chamber, the total mean cross-sectional area of both inlet ducts being substantially less than the mean transverse cross-sectional area of the chamber and less than the effective cross-sectional area of the outlet duct.
Claim 8
Dependent Claim
30 words
A nozzle according to claim 1 wherein the chamber has a length between the inlet and outlet ends thereof which is greater than the mean transverse dimension of the chamber.
Claim 9
Dependent Claim
15 words
A nozzle according to claim 1 wherein the chamber has a right circularly cylindrical configuration.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |