US3957292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick-connect fittings for a trickle type irrigation system
Assignee: Individual
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Filing: 1974-08-16
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Granted: 1976-05-18
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Expires: 1994-08-16
Abstract
Abstract Quick-connect fittings for a trickle-type irrigation system wherein the fittings include gripping means thereon for quickly and easily joining the fittings to plastic pipes and the like without requiring the use of tools. In one form of the invention, the fitting has piercing means thereon for penetrating the wall of a plastic pipe to make a secure and leak-tight connection thereto without requiring the use of tools; and in another form of the invention, adjustable resilient orifice means is in the fitting.
Inventors
- 👤 Richard E. Diggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:56
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/02; F16L41/021; A; A01; A01G; A01G25/00; A01G25/02; A01G25/023; F16L33/00; F16L33/30; F16L37/00; F16L37/008; F16L47/00; F16L47/26; F16L47/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A one-piece, plastic, quick-connect fitting for joining together in fluid flow relationship at least two conduits, said fitting comprising a cylindrical body having an axial bore therethrough opening through opposite ends thereof, a pair of diametrically opposite, conically tapered projections extending outwardly from opposite sides of the body intermediate the ends thereof, each of said projections having a serrated outer surface extending over substantially the entire length thereof, a bore extending axially through each projection and communicating with the bore through the body, the bores in the projections being of the same size and being smaller in diameter than the bore through the body, a conduit end received coaxially inside each end of the bore through the body and in snug fitting engagement therewith, and a conduit end received coaxially over the serrated surface of each projection and in snug fitting engagement therewith.
Claim 2
Dependent Claim
143 words
A one-piece, plastic, quick-connect fitting for joining together in fluid flow relationship at least two conduits, said fitting comprising a cylindrical body having an axial bore therethrough opening through opposite ends thereof, a pair of diametrically opposite, conically tapered projections extending outwardly from opposite sides of the body intermediate the ends thereof, each of said projections having a serrated outer surface extending over substantially the entire length thereof, a bore extending axially through each projection and communicating with the bore through the body, the bores in the projections being of the same size and being smaller in diameter than the bore through the body, a conduit end received coaxially inside each end of the bore through the body and in snug fitting engagement therewith, and a conduit end received coaxially over the serrated surface of each projection and in snug fitting engagement therewith.
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) | 1979-05-18 | 1979-11-17 | 1980-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-18 | 1983-11-17 | 1984-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-18 | 1987-11-17 | 1988-05-18 | $7700.00 | Window Closed / Lapsed |