Flexible or portable closure – partition – or panel – Plural and/or with rigid closure – Diverse types
Patent
1982-06-25
1984-08-21
Caun, Peter M.
Flexible or portable closure, partition, or panel
Plural and/or with rigid closure
Diverse types
E06B 332
Patent
active
044664745
ABSTRACT:
A thermally insulating transparent wall element comprises a plurality of paraxially, adjacently arranged evacuated transparent tubes each having an axially arranged shaft journalled therewithin, an elongate sunshade strip being mounted on each shaft. A ratchet wheel is supported on one end of each shaft and has at its circumference engaging elements situated at the same angular distance from one another. An externally operable pawl cooperates with the engaging elements of the ratchet wheel to advance the same in step-wise manner. Means is provided to drive the pawl; and a member is coupled to the pawl drive means for latching the ratchet wheel at the end of each movement step, such member being releasable from the ratchet wheel by the pawl drive means just before the start of the next movement step.
REFERENCES:
patent: 1729818 (1929-10-01), Burgess
patent: 1960160 (1934-05-01), Louda
patent: 3012294 (1961-12-01), Waldor
patent: 4038797 (1977-08-01), Hermann et al.
patent: 4284069 (1981-08-01), Horster et al.
Caun Peter M.
Schneider Rolf E.
U.S. Philips Corporation
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