Unitary window frames and sashes

Details Unitary window frames and sashes Unitary window frames and sashes

1988-05-18

1993-03-02

Dorner, Kenneth J.

Movable or removable closures

Frame with closure feature

49DIG2, E06B 716

Patent

active

051898411

ABSTRACT:
A window assembly comprises frame and sash members that are each one-piece of integrally-molded plastic material. The frame and sash members are each molded by delivering molten plastic to respective mold cavities defined between outer and inner multiple-member rectangular sub-assemblies. Different size frames and sashes are formed by inserting/removing inner and outer extension members of appropriate length from the mold sub-assemblies.

REFERENCES:
patent: 2753603 (1956-07-01), Strawther
patent: 3352060 (1967-11-01), Thams
patent: 3843982 (1974-10-01), Lane et al.
patent: 4333283 (1982-06-01), Ebata
patent: 4553364 (1985-11-01), Legg et al.

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