Pipe joints or couplings – Elbow
Patent
1992-12-30
1994-11-22
Arola, Dave W.
Pipe joints or couplings
Elbow
285330, 285392, 285423, 285328, 285908, F16L 5500
Patent
active
053662571
ABSTRACT:
An improved connecting device for of securing a pipe fitting of one material to a pipe of another. This invention provides a connector body with an insert fitting which does not leak therebetween. Further, the invented device has an integral annular flange, which extends into the surrounding body thereby preventing the body from expanding with heat and slipping with relation to the insert upon engaging the fitting with a nipple or other pipe material, and twisting forcefully.
REFERENCES:
patent: 4093280 (1978-06-01), Yoshizawa et al.
patent: 4313286 (1982-02-01), Harbeke
patent: 4428602 (1984-01-01), Lambot et al.
patent: 4631212 (1986-12-01), Shifflett et al.
patent: 4919461 (1990-04-01), Reynolds
patent: 5109929 (1992-05-01), Spears
McPherson Terry R.
Spirkowyc Paul A.
Womeldorff Daniel W.
Arola Dave W.
Dougherty Ralph H.
Eslon Thermoplastics, a Division of Sekisui America Corporation
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