Method of casting an article having a body cavity

Details Method of casting an article having a body cavity Method of casting an article having a body cavity

1976-01-22

1977-03-08

Hoag, Willard E.

Metal founding

Process

Shaping liquid metal against a forming surface

164132, 264250, 264259, 264274, 264279, 264328, 264334, B22D 2300, B29C 508, B29D 900, B29F 100

Patent

active

040107949

ABSTRACT:
In a die casting technique, a first element is die cast with a cavity formed by a core, the first element having an interlocking surface such as a projection or shaped aperture. The core is then removed, and a second element is cast to extend into alignment with the cavity, employing the interlocking surface of the first element for a portion of the die in the formation of the second element. The second element is thereby interlocked with the first element to form a unitary article. The unitary article may be in the form of a hanger adaptable for use in extending a cord for suspending an object. The hanger has a body portion with a hole extending therethrough, one end of the hole being enlarged for receiving and holding therein the knot of a cord. A loop shaped portion of the hanger extends over the enlarged end of the hole. The loop shaped portion is rigidly affixed to the body portion, and serves as a hook.

REFERENCES:
patent: 2819494 (1958-01-01), Morin
patent: 3197535 (1965-07-01), Morin
patent: 3263013 (1966-07-01), Morin

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