Movable or removable closures – With means mounting closure for swinging – With biasing means
Patent
1997-10-31
1999-08-17
Redman, Jerry
Movable or removable closures
With means mounting closure for swinging
With biasing means
16298, 16306, E05F 110
Patent
active
059375833
ABSTRACT:
A device for closing road wells in vehicle and pedestrian zones is provided, said device comprising a support frame (2) defining an access opening (4) and a plate closing element (5) rotatably engaged with the support frame (2) about a hinging axis (6) so as to be movable between a raised open position and a lowered closed position.
REFERENCES:
patent: 1801840 (1931-04-01), Banfield
patent: 2183210 (1939-12-01), Anderson
patent: 3810275 (1974-05-01), Smith
patent: 5142738 (1992-09-01), Ojima
patent: 5240319 (1993-08-01), Koga
patent: 5465862 (1995-11-01), Devlin
Conte Robert F. I.
Redman Jerry
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