Method of producing a novel structural element

Details Method of producing a novel structural element Method of producing a novel structural element

1987-10-05

1989-01-24

Echols, P. W.

Plastic and nonmetallic article shaping or treating: processes

Prestressing solid body and uniting in stressed condition

264275, 264279, 249 83, 384295, 384906, 425117, B29C 4514

Patent

active

048000574

ABSTRACT:
A method of producing a structural element comprising a metallic sleeve provided with a continuous axial slot at a circumferential area and an outer surface completely surrounded by a jacket comprising making a metallic sleeve (3,18) with an inner diameter corresponding to a maximum of the inner diameter of the finished structural element (1,16) surrounding the sleeve with the jacket (4,17) in an apparatus (5) provided with a core (8) for receiving the metallic sleeve (3,18) and elastically widening the metallic sleeve (3,18) when placed on the core (8) whereby the slot (2,19) of the metallic sleeve (3,18) is at least partially filled with the material of the jacket (4,17) during formation of the jacket (4,17) so that the boundary surfaces of the slot (2,19) of the metallic sleeve (3,18) is at least partially covered, and the structural element produced thereby.

REFERENCES:
patent: 2554008 (1951-05-01), Burger
patent: 2666677 (1954-01-01), Miller
patent: 2713525 (1955-07-01), Hinman
patent: 3305325 (1967-02-01), Le Brasse et al.
patent: 3913444 (1975-10-01), Otte
patent: 3937780 (1976-02-01), Mercier
patent: 4548843 (1985-10-01), Kozuka et al.
patent: 4598002 (1986-07-01), Kimura

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