Hollow metal object and method of its fabrication

Details Hollow metal object and method of its fabrication Hollow metal object and method of its fabrication

2005-05-24

2005-05-24

Evans, Geoffrey S. (Department: 1725)

Electric heating

Metal heating

Cutting or disintegrating

C138S171000, C428S036900, C428S586000, C428S592000, C428S611000

Reexamination Certificate

active

06897399

ABSTRACT:
Manufacturing narrow-diameter hollow metal objects utilizing metals difficult to work plastically has been problematic with conventional manufacturing methods; the narrower the diameter the higher the manufacturing cost has been, and under some circumstances manufacturing has been impossible. A plurality of metal wires is worked into a twisted wire cluster, adjoining companion metal wires are brought into contact in planar contacting portions, and the cluster is made unitary by supplying an adhesive agent along the outer side, producing a hollow metal object possessing a uniform inner diameter and a clean inner surface.

REFERENCES:
patent: 3568722 (1971-03-01), Runshe et al.
patent: 4448655 (1984-05-01), Inoue
patent: 4797527 (1989-01-01), Yamamoto et al.
patent: 20020179166 (2002-12-01), Houston et al.
patent: 57-144630 (1982-09-01), None
patent: 57-144632 (1982-09-01), None
patent: 2001-157925 (2001-06-01), None

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