Metal working – Method of mechanical manufacture – Obtaining plural product pieces from unitary workpiece
Patent
1976-06-03
1977-10-25
DiPalma, Victor A.
Metal working
Method of mechanical manufacture
Obtaining plural product pieces from unitary workpiece
29157A, 113116UT, 138151, 285 47, 285183, B23P 1700
Patent
active
040549852
ABSTRACT:
A protective cover for an insulated pipe bend. A corrugated band-form material is spirally wound into a tube and the adjoining tube edges are secured, such as by lapping, to form a non-slipping joint. The corrugated tube thus provided can be readily shaped to conform to an existing tube bend. The corrugated tube is cut lengthwise into two or more parts which are then placed over the insulated pipe bend. The cut edges are re-joined to form the protective cover.
REFERENCES:
patent: 394479 (1888-12-01), Evans et al.
patent: 1049543 (1913-01-01), Smith
patent: 2923650 (1960-02-01), Seme
patent: 3153546 (1964-10-01), Dunn
patent: 3559694 (1971-02-01), Volberg
patent: 3620258 (1971-11-01), Graham
patent: 3732894 (1973-05-01), Botsolas
DiPalma Victor A.
Isolerings Aktiebolaget Isenta
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