EP 0300848 A1 19890125 - Retractable barrier for land vehicles.
Title (en)
Retractable barrier for land vehicles.
Title (de)
Versenkbare Sperre für Landfahrzeuge.
Title (fr)
Barrage escamotable pour véhicules terrestres.
Publication
Application
Priority
FR 8709013 A 19870626
Abstract (en)
The barrier comprises a single-piece shell (1), particularly in concrete, of a general trough shape, intended to be accommodated completely in a trench (3) in the ground, there being provided in the said shell a retractable barrier formed from a series of spikes (8) fastened on a shaft (6) so as to have a rest position (8') below ground level and so as to be capable of projecting above the ground by means of an incorporated drive unit (9). The spikes have two active positions (8, 8') which are substantially symmetrical relative to the vertical plane containing the shaft (6). <IMAGE>
Abstract (fr)
Le barrage comporte une coquille (1) monobloc, notamment en béton, en forme générale d'auge, destinée à venir se loger complètement dans une fouille (3) du sol, aménagée dans ladite coquille, une barrière escamotable formée d'une série de pointes (8) fixées sur un arbre (6), de façon à posséder une position de repos (8') en dessous du niveau du sol, et à pouvoir faire saillie hors du sol au moyen d'une motorisation incorporée (9). Les pointes ont deux positions d'action (8, 8'') sensiblement symétriques par rapport au plan vertical contenant l'arbre (6).
IPC 1-7
IPC 8 full level
E01F 13/08 (2006.01); E01F 13/12 (2006.01)
CPC (source: EP)
E01F 13/08 (2013.01); E01F 13/123 (2013.01)
Citation (search report)
- [X] DE 2048780 A1 19720406 - KRISCHBAUM H
- [Y] DE 3447712 A1 19860814 - JOST JOCHEN
- [Y] GB 1193901 A 19700603 - GODWIN WARREN ENG
- [X] CH 241933 A 19460415 - RAVESSOUD ANDRE [CH]
- [Y] DE 3402898 A1 19840809 - BAMMENS & ZN PLAATWERK VERZINK [NL]
- [Y] US 1960376 A 19340529 - GILMAN LYLE A
- [X] US 1969286 A 19340807 - WALTER WORNICK
- [YD] DE 3134247 A1 19830317 - MALKMUS DOERNEMANN CAROLA [DE]
- [YD] US 1563637 A 19251201 - LUNDBLAD PAUL A
- [Y] DE 8605666 U1 19860410
- [A] GB 2127893 A 19840418 - DICKINSON HARRY DAVID
- [Y] US 4624600 A 19861125 - WAGNER RICHARD H [US], et al
- [Y] FR 2580690 A1 19861024 - TUBAUTO [FR]
- [YD] BE 900018 A 19841015 - SILVESTRE RAYMOND P, et al
- [AD] GB 2032983 A 19800514 - LILLESHALL ENG LTD
- [AD] US 4101235 A 19780718 - NELSON DONALD F
- [A] FR 1478659 A 19670428
- [A] US 2741859 A 19560417 - CASTLE DONALD H
- [A] US 3783558 A 19740108 - KEATOR F
- [A] FR 16011 E 19121105 - EUGENE AUGUSTE CHARLES FERDINA [FR]
- [A] US 4382714 A 19830510 - HUTCHISON WALTER G [US]
- [A] GB 1480331 A 19770720 - LOWNDES R
- [A] US 2912229 A 19591110 - ARTHUR PERSGARD
- [A] GB 2165569 A 19860416 - DUNSMORE ALAN
- [A] NL 8204614 A 19840618 - WOUTER NIEUWVELD
- [A] EP 0087351 A1 19830831 - PAPONE ALAIN [FR]
- [A] US 1823297 A 19310915 - STOHR FREDERICK W
- [A] US 4096782 A 19780627 - DESCHENES PIERRE J
Designated contracting state (EPC)
BE DE ES GB IT NL
DOCDB simple family (publication)
EP 0300848 A1 19890125; FR 2617215 A1 19881230; FR 2617215 B1 19910607
DOCDB simple family (application)
EP 88401568 A 19880622; FR 8709013 A 19870626