Pipe joints or couplings – End to side or plate – Flexible or yielding plate
Patent
1974-05-31
1976-01-13
Arola, Dave W.
Pipe joints or couplings
End to side or plate
Flexible or yielding plate
285219, 285423, F16L 500
Patent
active
039319938
ABSTRACT:
In a laminar polymeric sheet having a passageway which is threaded for part of the thickness of the sheet and a threaded element engaged with the threads in the passageway, the improvement wherein the thread engagement begins at a minimum distance from the top surface of the sheet.
REFERENCES:
patent: 2540900 (1951-02-01), McCool
patent: 2788829 (1957-04-01), Edwards
patent: 3013820 (1961-12-01), Pouppirt
patent: 3168905 (1965-02-01), Wiltshire
patent: 3245701 (1966-04-01), Leopold et al.
patent: 3270610 (1966-09-01), Knowlton
Arola Dave W.
E. I. du Pont de Nemours & Company
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