US3586239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irrigation spray unit
Assignee: Individual
•
Filing: 1969-04-25
•
Granted: 1971-06-22
•
Expires: 1989-04-25
Abstract
Abstract An irrigation spray unit for use in irrigation and designed to ensure a low range spray of water therefrom with a low rate of supply unit being adapted to be coupled to an irrigation feed pipe in which the water flows at supply mains pressure, the unit serving to reduce the supply pressure to a very low level and to divide the incoming stream into a plurality of outflowing low range sprays.
Inventors
- 👤 Ischajahu Blass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:48
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/02; A01G25/023; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
171 words
An irrigation spray unit adapted to be coupled to an irrigation feedpipe in which water flows at supply main pressure and comprising an outer tubular member, an inner member adapted to fit within the outer member so as to define between them an elongated helical conduit constituting a main pressure reducing means adapted to reduce the pressure of a unitary stream flowing through the unit to a fraction of the supply pressure, means for coupling the unit to the irrigation feedpipe, a unit inlet communicating with one end of the conduit and a plurality of unit outlets, formed in a sidewall of the unit and communicating with the other end of the conduit, the location and distribution of the unit outlets being such that water flowing through said conduit is subjected to a sharp diversion of direction upon emerging through said outlets thereby constituting auxiliary pressure reducing means serving still further to reduce the pressure of the stream and to divide it into a plurality of discrete outflowing low range sprays.
Claim 2
Dependent Claim
171 words
An irrigation spray unit adapted to be coupled to an irrigation feedpipe in which water flows at supply main pressure and comprising an outer tubular member, an inner member adapted to fit within the outer member so as to define between them an elongated helical conduit constituting a main pressure reducing means adapted to reduce the pressure of a unitary stream flowing through the unit to a fraction of the supply pressure, means for coupling the unit to the irrigation feedpipe, a unit inlet communicating with one end of the conduit and a plurality of unit outlets, formed in a sidewall of the unit and communicating with the other end of the conduit, the location and distribution of the unit outlets being such that water flowing through said conduit is subjected to a sharp diversion of direction upon emerging through said outlets thereby constituting auxiliary pressure reducing means serving still further to reduce the pressure of the stream and to divide it into a plurality of discrete outflowing low range sprays.
Claim 3
Dependent Claim
32 words
A spray unit according to claim 1, wherein said outlets are defined by slots formed in the rim of one of the members and a flange formed integrally with the other member.
Claim 4
Dependent Claim
30 words
A spray unit according to claim 1 wherein said outer tubular member is formed integrally with a pair of tubular branch arms adapted to be fitted to an irrigation feedpipe.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |