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1. (WO1989000234) VIEWING AND ORAL COMMUNICATIONS ASSEMBLY FOR DOORS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1989/000234 International Application No.: PCT/GB1988/000468
Publication Date: 12.01.1989 International Filing Date: 16.06.1988
IPC:
E06B 7/30 (2006.01)
E FIXED CONSTRUCTIONS
06
DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS, IN GENERAL; LADDERS
B
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
7
Special arrangements or measures in connection with doors or windows
28
Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
30
Peep-holes; Devices for speaking through; Doors having windows
Applicants:
RITCHIE, Richard, Ruben [GB/GB]; GB
Inventors:
RITCHIE, Richard, Ruben; GB
Agent:
BULL, Michael, Alan; Haseltine Lake & Co. 28 Southampton Buildings Chancery Lane London WC2A 1AT, GB
Priority Data:
068,25830.06.1987US
Title (EN) VIEWING AND ORAL COMMUNICATIONS ASSEMBLY FOR DOORS
(FR) ENSEMBLE PERMETTANT LES COMMUNICATIONS VISUELLES ET ORALES POUR PORTES
Abstract:
(EN) There is disclosed a viewing and oral communications asembly (22) for doors. The assembly is generally rectangular in shape, having mirror surfaces (52) to transmit images from positions adjacent to the door through the assembly and having audio communication slots which are closed by expansion of intumescent material (68) in the presence of heat.
(FR) Ensemble (22) permettant les communications visuelles et orales pour portes. L'ensemble dont la forme est sensiblement rectangulaire est doté de surfaces spéculaires (52) destinées à transmettre des images, à partir de positions adjacentes à la porte, à travers l'ensemble, et de fentes de communication audio, lesquelles sont fermées par expansion de matière intumescente (68) en présence de chaleur.
Designated States: AU, BR, DK, FI, JP, NO
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1988019478