Patent · US Expired

Device for guiding daylight

US4654243A · kind A · utility

3Cited by

0References

18Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Julius Moench · Wendelstein, DE
Heinz Rentzsch · Coburg, DE
Georg Lang · Ludwigshafen, DE
Herbert Mueller · Herznach, CH

Key dates

Filing date	Nov 27, 1985
Grant date	Mar 31, 1987
Priority date	—
Expiry date	Nov 27, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/164
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Since only relatively small-area prism sub-plates can be manufactured in warp-free fashion, large area prism plates are formed of a plurality of sub-plates. A connection of the sub-plates must be stable and the expense for joining the sub-plates should be as low as possible. To create the large-area prism plate, adjoining sub-plates are connected to one another in two dimensions by at least one positive lock plug-type connection comprising locking projections and locking projection receptacleswhich form plug-type connections secured by latching devices which do not allow a dislocation of the joined sub-plates in a third dimension.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.