Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool
Patent
1991-04-17
1993-09-14
Arola, Dave W.
Pipe joints or couplings
With assembly means or feature
Particular tool-engaging means or with tool
285162, 285197, 285222, F16L 3500
Patent
active
052442365
ABSTRACT:
The invention relates to a corrosion-preventive sleeve for preventing corrosion of a drilled hole in a metal pipe, and also to a mounting tool for mounting this corrosion-preventive sleeve in such drilled hole. The corrosion-preventive sleeve comprises an elastic sleeve and a corrosion-resistant metal sleeve to be inserted into the elastic sleeve. The elastic sleeve with the corrosion-resistant metal sleeve inserted therein in its diametrically contracted state is inserted into the drilled hole. Subsequently, the tapered member of the mounting tool is passed through the metal sleeve, whereby the latter is diametrically expanded. Then, with this, the elastic sleeve is also diametrically expanded and is intimately contacted with the inner surface of the drilled hole.
REFERENCES:
patent: 3801209 (1974-04-01), Matsuoka
patent: 3841667 (1974-10-01), Sands
patent: 3879069 (1975-04-01), Oostenbrink
patent: 3958313 (1976-05-01), Rossborough
patent: 4365829 (1982-12-01), Fowler
patent: 4589690 (1986-05-01), Meuleman
patent: 4922951 (1990-05-01), Webster
Arola Dave W.
Farley Joseph W.
Kubota Corporation
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