Lid raising means for a jack-in-the-box projection television re

Details Lid raising means for a jack-in-the-box projection television re Lid raising means for a jack-in-the-box projection television re

1981-06-26

1983-08-23

Masinick, Michael A.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358237, 312 72, H04N 564

Patent

active

044007361

ABSTRACT:
A lid-raising device is disclosed for use in an ultra-compact, jack-in-the-box television receiver housed in an open-topped cabinet. The cabinet has a lid pivotally attached at the back thereof for selectively opening and closing the cabinet for emergence and storage of a unitary optical assembly elevatable from and nestable within the cabinet by a precision elevating device, and includes a rear-projection screen for displaying a television image upon its emergence. The unitary optical assembly includes a rigid, box-like shroud having a slanted back and an open front for receiving and supporting the screen. The lid-raising device comprises an assembly of at least one cam element and a captivated cam-follower element for slidably attaching the lid to the shroud such that as the unitary optical assembly is elevated and lowered by the precision elevating device, the lid-raising device is effective to raise and lower the lid in relatively friction-free sliding association while holding the lid apart from rubbing contact with the shroud.

REFERENCES:
patent: 2404943 (1946-07-01), Beshgetoor
patent: 2476494 (1949-07-01), Jones et al.
patent: 4349845 (1982-09-01), Strauss
patent: 4358792 (1982-11-01), Domoleczny

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