Cube corner type retroreflector bodies and molds made therewith

Details Cube corner type retroreflector bodies and molds made therewith Cube corner type retroreflector bodies and molds made therewith

1976-06-25

1978-01-03

Shore, Ronald J.

Static molds

Container-type molding device

Having plural mold sections

425808, 425DIG30, 249187R, B41B 1154

Patent

active

040662365

ABSTRACT:
Preformed electroforms are sliced into elongated slab shaped bodies having spaced generally parallel respective side walls so that an edge wall thereof has defined therein cube corner retroreflective units. When a plurality of such slab shaped bodies are positioned together to provide a region of cube corner type retroreflective units, there results a mold element which can be incorporated into a mold for making reflector units of transparent solid material or the like wherein angled retroreflective units and so-called standard retroreflective units are distributable over the entire face of a product reflector unit and from which air in the mold cavity can readily escape during filling in a molding operation.

REFERENCES:
patent: 1591572 (1926-07-01), Stimson
patent: 3069721 (1962-12-01), Arni et al.
patent: 3277535 (1966-10-01), Rupert
patent: 3363875 (1968-01-01), Hedgewick et al.
patent: 3417959 (1968-12-01), Schultz
patent: 3443281 (1969-05-01), Walby
patent: 3649153 (1972-03-01), Brudy
patent: 3811647 (1974-05-01), Pink

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