Patent US3920037A successfully refreshed from Google Patents.
US3920037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drip irrigation tap and system
Assignee: AG INTERNATIONAL
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Filing: 1974-04-29
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Granted: 1975-11-18
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Expires: 1994-04-29
Abstract
Abstract A tap for and a drip irrigation system which provides an efficient means of applying fluid to crops, orchards and the like. The tap includes a cylindrical sleeve for surrounding a portion of a pipe, straps and loops for securing the sleeve to the pipe, a male stinger and a cannula located within the male stinger and extending through the sleeve and pipe to serve as a passageway for fluid from the pipe.
Inventors
- 👤 John K Hoff
- 👤 Richard H Garrett
- 👤 Michael J Pastusek
- 👤 John B Goss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:43
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/02; A01G25/023; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/22; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/612; Y10T137/6123
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
108 words
A tap apparatus for obtaining a continuous flow of fluid from a pipe constructed of penetrable material, including, a. a sleeve for surrounding a portion of the pipe, b. strap means for securing the sleeve (a) to the pipe, c. a male stinger integral of the sleeve (a) and of unitary construction therewith extending from the exterior of said sleeve, and d. a tubular cannula secured within the male stinger (c) with one end extending through the sleeve (a) and having an axially hollow pointed tip at its extremity for penetrating the pipe and providing fluid communication from the interior of the pipe to the male stinger (c).
Claim 2
Dependent Claim
108 words
A tap apparatus for obtaining a continuous flow of fluid from a pipe constructed of penetrable material, including, a. a sleeve for surrounding a portion of the pipe, b. strap means for securing the sleeve (a) to the pipe, c. a male stinger integral of the sleeve (a) and of unitary construction therewith extending from the exterior of said sleeve, and d. a tubular cannula secured within the male stinger (c) with one end extending through the sleeve (a) and having an axially hollow pointed tip at its extremity for penetrating the pipe and providing fluid communication from the interior of the pipe to the male stinger (c).
Claim 3
Dependent Claim
38 words
The invention of claim 1 wherein the strap means (b) comprises a pair of loops secured to the sleeve (a) and a pair of straps secured to the sleeve (a), each strap releasably engaging one of the loops.
Claim 4
Dependent Claim
120 words
Apparatus for tapping a continuous flow of fluid from a pipe in an irrigation system, comprising, a. a pipe constructed of penetrable material, and b. a tap including, i. a sleeve for surrounding a portion of the pipe (a), ii. strap means for securing the sleeve (i) to the pipe (a), iii. a male stinger integrally constructed of the sleevE (i) and of unitary construction therewith extending from the exterior of said sleeve, and iv. a tubular cannula secured within the male stinger (iii) with one end extending through the sleeve (i) and having an axially hollow pointed tip at its extremity for penetrating the pipe (a) and providing fluid communication from the pipe (a) to the male stinger (iii).
Claim 5
Dependent Claim
120 words
Apparatus for tapping a continuous flow of fluid from a pipe in an irrigation system, comprising, a. a pipe constructed of penetrable material, and b. a tap including, i. a sleeve for surrounding a portion of the pipe (a), ii. strap means for securing the sleeve (i) to the pipe (a), iii. a male stinger integrally constructed of the sleevE (i) and of unitary construction therewith extending from the exterior of said sleeve, and iv. a tubular cannula secured within the male stinger (iii) with one end extending through the sleeve (i) and having an axially hollow pointed tip at its extremity for penetrating the pipe (a) and providing fluid communication from the pipe (a) to the male stinger (iii).
Claim 6
Dependent Claim
38 words
The invention of claim 3 wherein the strap means (b)(ii) comprises a pair of loops secured to the sleeve (b)(i) and a pair of straps secured to the sleeve (b)(i), each strap releasably engaging one of the loops.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |