Patent US3907341A successfully refreshed from Google Patents.
US3907341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irrigation pipe and coupling construction
Assignee: Individual
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Filing: 1974-10-23
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Granted: 1975-09-23
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Expires: 1994-10-23
Abstract
Abstract Axially opposed ends of preferably fiberglass pipes are molded partially telescoped over preferably metal coupling sleeves having circumferentially spaced and axially projecting finger portions which are generally hook-shaped in radial cross-section. The sleeve hook-shaped finger portions are positioned circumferentially interfitting and circumferentially aligned with a split retainer ring through the finger portions retaining the same against axial and radial separation. A resilient sleeve is telescoped over and between the pipe ends secured to the pipes by clamping rings and completing the coupling. Various take-off members may be molded in the resilient sleeve fluid communicating with the interior of the pipes through voids provided axially adjacent the coupling sleeve finger portions.
Inventors
- 👤 Adolf Schoepe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:25
CPC Classifications
F; F16; F16L; F16L47/00; F16L47/26; F16L47/32; B; B05; B05B; B05B15/00; B05B15/60; B05B15/65; F16L21/00; F16L21/002; F16L21/005
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
186 words
In a pipe and coupling construction, the combination of: two pipes having generally axially aligned and axially facing ends; metal coupling sleeves partially telescoped with and secured to said pipe ends having circumferentially spaced and axially extending finger portions generally hook-shaped in radial crosssection, said hook-shaped finger portions of said coupling sleeves circumferentially interfitting generally circumferentially aligned; a retention ring through said hookshaped finger portions of said coupling sleeves retaining said finger portions against axial and radial separation; a cover sleeve telescoping said pipe ends axially over said coupling sleeves and said hook-shaped finger portions of said coupling sleeves; clamping means retaining said cover sleeve in said telescoping position, fluid flow voids are formed circumferentially between said coupling sleeve finger portions by said fiNger portion circumferential spacing remaining radially open axially adjacent certain of said finger portions after said circumferential interfitting and said circumferential alignment of said finger portions; and in which a fluid takeoff member is secured in said cover sleeve, and provides a fluid communicating passage there through, said take-off member freely fluid communicating with interiors of said pipes through said fluid flow voids.
Claim 2
Dependent Claim
186 words
In a pipe and coupling construction, the combination of: two pipes having generally axially aligned and axially facing ends; metal coupling sleeves partially telescoped with and secured to said pipe ends having circumferentially spaced and axially extending finger portions generally hook-shaped in radial crosssection, said hook-shaped finger portions of said coupling sleeves circumferentially interfitting generally circumferentially aligned; a retention ring through said hookshaped finger portions of said coupling sleeves retaining said finger portions against axial and radial separation; a cover sleeve telescoping said pipe ends axially over said coupling sleeves and said hook-shaped finger portions of said coupling sleeves; clamping means retaining said cover sleeve in said telescoping position, fluid flow voids are formed circumferentially between said coupling sleeve finger portions by said fiNger portion circumferential spacing remaining radially open axially adjacent certain of said finger portions after said circumferential interfitting and said circumferential alignment of said finger portions; and in which a fluid takeoff member is secured in said cover sleeve, and provides a fluid communicating passage there through, said take-off member freely fluid communicating with interiors of said pipes through said fluid flow voids.
Claim 3
Dependent Claim
39 words
In pipe and coupling construction as defined in claim 1 in which said pipes are non-metallic pipes; and in which said metal coupling sleeves are secured to said pipe ends by molding said pipe ends to said coupling sleeves.
Claim 4
Dependent Claim
34 words
In pipe and coupling construction as defined in claim 1 in which said cover sleeve is a resilient material cover sleeve; and in which said clamping means includes clamping rings telescoping said cover sleeve.
Claim 5
Dependent Claim
38 words
In pipe and coupling construction as defined in claim 1 in which said cover sleeve is a resilient material cover sleeve; and in which said fluid take-off member is molded to and fluid communicating through said cover sleeve.
Claim 6
Dependent Claim
31 words
In pipe and coupling construction as defined in claim 1 in which at least two fluid take-off members are secured in and provide a fluid communicating passage through said cover sleeve.
Claim 7
Dependent Claim
68 words
In pipe and coupling construction as defined in claim 1 in which said pipes are non-metallic pipes; in which said metal coupling sleeves are secured to said pipe ends by molding said pipe ends to said coupling sleeves; in which said cover sleeve is a resilient material cover sleeve; and in which at least two fluid take-off members are secured to and fluid communicating through said cover sleeve.
References Cited (Backward Citations)
US773047A
Cited
US2810594A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |