Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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DESOLOS GERARD
Original Assignee
DESOLOS GERARD
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Filing date
Publication date
Application filed by DESOLOS GERARDfiledCriticalDESOLOS GERARD
Priority to FR7406033ApriorityCriticalpatent/FR2261373A1/fr
Publication of FR2261373A1publicationCriticalpatent/FR2261373A1/fr
Application grantedgrantedCritical
Publication of FR2261373B1publicationCriticalpatent/FR2261373B1/fr
E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
E01F13/06—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage by swinging into open position about a vertical or horizontal axis parallel to the road direction, i.e. swinging gates
Landscapes
Engineering & Computer Science
(AREA)
Architecture
(AREA)
Civil Engineering
(AREA)
Structural Engineering
(AREA)
Refuge Islands, Traffic Blockers, Or Guard Fence
(AREA)
FR7406033A1974-02-151974-02-15Rapid motion oscillating barrier arm - reversable reduction motor with hollow shaft and worm compensated by buffer
GrantedFR2261373A1
(en)