Patent US3833019A successfully refreshed from Google Patents.
US3833019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick-connect fittings for a trickle type irrigation system
Assignee: Individual
•
Filing: 1971-12-30
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Granted: 1974-09-03
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Expires: 1991-12-30
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
- 👤 R Diggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:21
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/008; A; A01; A01G; A01G25/00; A01G25/02; A01G25/023; F16L33/00; F16L33/30; F16L41/00; F16L41/02; F16L41/021; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/612; Y10T137/6123
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
154 words
A quick-connect fitting for a trickle type irrigation system or other fluid system, means on one end of said fitting for gripping and holding in a secure and leaktight manner a first conduit pushed thereover, means on the other end of said fitting for engaging and holding in a secure and leaktight manner a second conduit pushed over said other end to join said first and second conduits together, a passageway extending through said fitting from one end to the other end thereof for establishing fluid communication between said conduits, said fitting comprising two parts axially adjustably engaged with one another and having conically tapered, concave, facing surfaces at the inner ends thereof, and a resilient compressible orifice member clamped between said conically tapered surfaces so that when said two parts are axially adjusted toward one another, said resilient compressible orifice member is deformed radially inwardly to restrict the size of the orifice therethrough.
Claim 2
Dependent Claim
154 words
A quick-connect fitting for a trickle type irrigation system or other fluid system, means on one end of said fitting for gripping and holding in a secure and leaktight manner a first conduit pushed thereover, means on the other end of said fitting for engaging and holding in a secure and leaktight manner a second conduit pushed over said other end to join said first and second conduits together, a passageway extending through said fitting from one end to the other end thereof for establishing fluid communication between said conduits, said fitting comprising two parts axially adjustably engaged with one another and having conically tapered, concave, facing surfaces at the inner ends thereof, and a resilient compressible orifice member clamped between said conically tapered surfaces so that when said two parts are axially adjusted toward one another, said resilient compressible orifice member is deformed radially inwardly to restrict the size of the orifice therethrough.
Claim 3
Dependent Claim
44 words
A quick-connect fitting as in claim 1, wherein the means on the other end of said fitting comprises a conically tapered end having a plurality of sharp edged serrations thereon for gripping and holding in a secure and leaktight manner a conduit pushed thereover.
Claim 4
Dependent Claim
44 words
A quiCk-connect fitting as in claim 2, wherein the means on said one end of said fitting comprises a conically tapered end having a plurality of sharp edged serrations thereon for gripping and holding in a secure and leaktight manner a conduit pushed thereover.
Claim 5
Dependent Claim
25 words
A quick-connect fitting as in claim 1, wherein said orifice is conically tapered and diverges in a downstream direction to prevent clogging and the like.
Claim 6
Dependent Claim
38 words
A quick-connect fitting as in claim 1, wherein said means on the other end of said fitting comprises a piercing means to penetrate the wall of said second conduit and to effect a secure and leaktight connection therewith.
Claim 7
Dependent Claim
60 words
A quick-connect fitting as in claim 5, wherein said piercing means comprises an axial extension on the other end of said fitting, said extension having a sharpened end for penetrating the wall of a conduit and a shoulder means for engaging behind the wall of the conduit to prevent withdrawal of said sharpened end through said wall of said conduit.
Claim 8
Dependent Claim
44 words
A quick-connect fitting as in claim 1, wherein the means on said one end of said fitting comprises a conically tapered end having a plurality of sharp edged serrations thereon for gripping and holding in a secure and leaktight manner a conduit pushed thereover.
Claim 9
Dependent Claim
21 words
A quick-connect fitting as in claim 1, wherein said parts have mating, cooperatively interengaged threads thereon adjustably securing said parts together.
Claim 10
Dependent Claim
50 words
A quick-connect fitting as in claim 8, wherein one of said parts comprises a male part having an axial extension thereon, the other of said parts comprises a female part having a recess therein receiving said projection, and said mating threads are on said projection and in said recess, respectively.
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) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |