Two-piece hot runner manifold

Details Two-piece hot runner manifold Two-piece hot runner manifold

1979-12-06

1981-03-17

Cline, William R.

Fluid handling

Systems

425192R, B29F 304

Patent

active

042561400

ABSTRACT:
This relates to a hot runner manifold for distributing thermoplastic melts from a plasticizer to plural cavities of a mold. The manifold is formed in two parts which include a plate and a ring which are joined along a central parting line in a manner wherein all of the sprue and runner portions may be readily and accurately machined. The ring is shrunk in place on the plate and has an interference fit which is sufficient to prevent separation of the ring from the plate during normal operating conditions without the use of any fasteners.

REFERENCES:
patent: 2304461 (1942-12-01), Knowles
patent: 2339443 (1944-01-01), Wilson
patent: 3697211 (1972-10-01), Chisholm
patent: 3704723 (1972-12-01), Wheaton et al.
patent: 3740179 (1973-06-01), Schmidt

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