Method and apparatus for producing drip irrigation conduit

Details Method and apparatus for producing drip irrigation conduit Method and apparatus for producing drip irrigation conduit

1993-01-27

1994-06-28

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156500, 239542, B29C 4702

Patent

active

053243790

ABSTRACT:
A plurality of emitters are attached serially along a continuous length of thread at spaced-apart locations. A first of the emitters is attached to a conduit, whereby subsequent emitters are drawn into the conduit as the conduit is drawn from the extrusion head. Each subsequent emitter is supported as it is drawn into and attached to the conduit. The emitters may be fixedly or releasably attached to the thread. If releasably attached, the thread may be detached from each emitter after the emitter is attached to the conduit. In this case, the thread may be formed as a loop that travels around a continuous path.

REFERENCES:
patent: 3981452 (1976-09-01), Eckstein
patent: 4307841 (1981-12-01), Mehoudar et al.
patent: 4473525 (1984-09-01), Drori
patent: 4726520 (1988-02-01), Brown et al.
patent: 4817875 (1989-04-01), Karmeli et al.
patent: 4859264 (1989-08-01), Buluschek
patent: 5022940 (1991-06-01), Mehoudar
patent: 5111995 (1992-05-01), Dumitrascu et al.
patent: 5123984 (1992-06-01), Allport et al.
patent: 5163622 (1992-11-01), Cohen

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