US4017958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irrigation apparatus
Assignee: Individual
•
Filing: 1975-12-11
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Granted: 1977-04-19
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Expires: 1995-12-11
Abstract
Abstract The irrigation apparatus includes a quick-connect, self-piercing drip emitter insertable in a plastic pipe to effect a controlled, localized trickle of irrigating water. The apparatus is usable either above the surface of the ground or below the surface and may include a protective wrap to keep dirt from clogging the emitter and to spread the flow of irrigating water over a larger area.
Inventors
- 👤 Richard E. Diggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:15
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/008; A; A01; A01G; A01G25/00; A01G25/02; A01G25/023; A01G25/06; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53896; Y10T29/539
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
A tool for installing a self-piercing irrigation fitting to a length of plastic pipe, comprising: a long-nose plier having a pair of tapered gripping jaws with one jaw having a gripping end portion which has a first tip and a flat face presented toward the other gripping jaw, the taper of said one jaw being sufficient to receive the fitting which is to be forced into the pipe, and the other jaw having a back surface, a pair of side surfaces and a second tip; and a semi-cylindrical backing member for supporting a pipe to which the fitting is being installed, said backing member having a pair of sides with one side integrally attached to said second tip and the other side located to coincide with said first tip, said backing member having a back surface which extends outwardly of said back surface and a pair of ends which are each located outwardly of each of said side surfaces so that the inner surface of said backing member is presented toward said one jaw flat face so that pipe held in said backing member is located above said one jaw flat face.
Claim 2
Dependent Claim
192 words
A tool for installing a self-piercing irrigation fitting to a length of plastic pipe, comprising: a long-nose plier having a pair of tapered gripping jaws with one jaw having a gripping end portion which has a first tip and a flat face presented toward the other gripping jaw, the taper of said one jaw being sufficient to receive the fitting which is to be forced into the pipe, and the other jaw having a back surface, a pair of side surfaces and a second tip; and a semi-cylindrical backing member for supporting a pipe to which the fitting is being installed, said backing member having a pair of sides with one side integrally attached to said second tip and the other side located to coincide with said first tip, said backing member having a back surface which extends outwardly of said back surface and a pair of ends which are each located outwardly of each of said side surfaces so that the inner surface of said backing member is presented toward said one jaw flat face so that pipe held in said backing member is located above said one jaw flat face.
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) | 1980-04-18 | 1980-10-18 | 1981-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-18 | 1984-10-18 | 1985-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-18 | 1988-10-18 | 1989-04-19 | $7700.00 | Window Closed / Lapsed |