US3870236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dripping irrigation tubing
Assignee: SAHAGUN#BARRAGAN JAIME
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Filing: 1973-03-14
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Granted: 1975-03-11
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Expires: 1993-03-14
Abstract
Abstract A dripping irrigation tubing comprising a pipe line with a channel member firmly attached all along the pipe line, said channel member having bottom and side walls and being interiorly closed at predetermined lengths constituting independent channel member; said line having bores spaced at periodic distances along its length, each of said bores communicating with a channel member entrance constituted by an admission chamber for irrigation liquid from the pipe line having a reduced height regarding the internal height of the rest of the channel member so as to provide a filter for particles of certain thickness, said channel member including a plurality of alternated internal walls promoting a plurality of impingements and changes in direction of the fluid that passes through the channel lowering its pressure before the fluid leaves the channel through an outlet bore.
Inventors
- 👤 Jaime Sahagun-Barragan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:59
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/02; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
235 words
A dripping irrigation tubing for distributing irrigation liquid, comprising a pipe line having a plurality of spaced perforations along its length through which irrigation liquid under pressure emerges from the pipe line, and a one piece depressurizing channel member outside the pipe line covering said perforations and extending partly around the external circumference of said pipe line, said channel member having a curved bottom wall corresponding to the pipe line wall curvature and side walls of uniform height extending around the edges of said bottom wall, said side walls being firmly attached to the outside of the pipe line wall to space the channel member from the pipe line, a plurality of cross walls being provided projecting alternately from each of said side walls and of the same height as said side walls and engaging with the outside of the pipe line wall but not reaching the opposite side wall and arranged to form passages providing a plurality of obstacles to liquid flow, and reception chambers for incoming liquid being provided in said channel member located respectively under each pipe line perforation and of less height than said side walls thereby filtering out large particles from the incoming liquid, and including a plurality of spaced outlet holes in said channel member at a preselected distance between said reception chambers along its length to distribute liquid at a predetermined lowered pressure after passing through said passages.
Claim 2
Dependent Claim
235 words
A dripping irrigation tubing for distributing irrigation liquid, comprising a pipe line having a plurality of spaced perforations along its length through which irrigation liquid under pressure emerges from the pipe line, and a one piece depressurizing channel member outside the pipe line covering said perforations and extending partly around the external circumference of said pipe line, said channel member having a curved bottom wall corresponding to the pipe line wall curvature and side walls of uniform height extending around the edges of said bottom wall, said side walls being firmly attached to the outside of the pipe line wall to space the channel member from the pipe line, a plurality of cross walls being provided projecting alternately from each of said side walls and of the same height as said side walls and engaging with the outside of the pipe line wall but not reaching the opposite side wall and arranged to form passages providing a plurality of obstacles to liquid flow, and reception chambers for incoming liquid being provided in said channel member located respectively under each pipe line perforation and of less height than said side walls thereby filtering out large particles from the incoming liquid, and including a plurality of spaced outlet holes in said channel member at a preselected distance between said reception chambers along its length to distribute liquid at a predetermined lowered pressure after passing through said passages.
Claim 3
Dependent Claim
235 words
A dripping irrigation tubing for distributing irrigation liquid, comprising a pipe line having a plurality of spaced perforations along its length through which irrigation liquid under pressure emerges from the pipe line, and a one piece depressurizing channel member outside the pipe line covering said perforations and extending partly around the external circumference of said pipe line, said channel member having a curved bottom wall corresponding to the pipe line wall curvature and side walls of uniform height extending around the edges of said bottom wall, said side walls being firmly attached to the outside of the pipe line wall to space the channel member from the pipe line, a plurality of cross walls being provided projecting alternately from each of said side walls and of the same height as said side walls and engaging with the outside of the pipe line wall but not reaching the opposite side wall and arranged to form passages providing a plurality of obstacles to liquid flow, and reception chambers for incoming liquid being provided in said channel member located respectively under each pipe line perforation and of less height than said side walls thereby filtering out large particles from the incoming liquid, and including a plurality of spaced outlet holes in said channel member at a preselected distance between said reception chambers along its length to distribute liquid at a predetermined lowered pressure after passing through said passages.
Claim 4
Dependent Claim
235 words
A dripping irrigation tubing for distributing irrigation liquid, comprising a pipe line having a plurality of spaced perforations along its length through which irrigation liquid under pressure emerges from the pipe line, and a one piece depressurizing channel member outside the pipe line covering said perforations and extending partly around the external circumference of said pipe line, said channel member having a curved bottom wall corresponding to the pipe line wall curvature and side walls of uniform height extending around the edges of said bottom wall, said side walls being firmly attached to the outside of the pipe line wall to space the channel member from the pipe line, a plurality of cross walls being provided projecting alternately from each of said side walls and of the same height as said side walls and engaging with the outside of the pipe line wall but not reaching the opposite side wall and arranged to form passages providing a plurality of obstacles to liquid flow, and reception chambers for incoming liquid being provided in said channel member located respectively under each pipe line perforation and of less height than said side walls thereby filtering out large particles from the incoming liquid, and including a plurality of spaced outlet holes in said channel member at a preselected distance between said reception chambers along its length to distribute liquid at a predetermined lowered pressure after passing through said passages.
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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) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |