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1. WO1996005381 - TRENCH COVER ASSEMBLY AND METHOD

Publication Number WO/1996/005381
Publication Date 22.02.1996
International Application No. PCT/US1995/010128
International Filing Date 08.08.1995
Chapter 2 Demand Filed 08.03.1996
IPC
E01C 19/50 2006.01
EFIXED CONSTRUCTIONS
01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
19Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
50Removable forms or shutterings for road-building purposes; Devices or arrangements for forming individual paving elements, e.g. kerbs, in situ
E03F 3/04 2006.01
EFIXED CONSTRUCTIONS
03WATER SUPPLY; SEWERAGE
FSEWERS; CESSPOOLS
3Sewer pipe-line systems
04Pipes or fittings specially adapted to sewers
E03F 5/06 2006.01
EFIXED CONSTRUCTIONS
03WATER SUPPLY; SEWERAGE
FSEWERS; CESSPOOLS
5Sewerage structures
04Gullies with or without odour seals or sediment traps
06Gully gratings
E04F 19/10 2006.01
EFIXED CONSTRUCTIONS
04BUILDING
FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
19Other details or constructional parts for finishing work on buildings
10Built-in gratings, e.g. foot-scrapers
CPC
E01C 19/506
EFIXED CONSTRUCTIONS
01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
19Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
50Removable forms or shutterings for road-building purposes
502Removable forms or shutterings, e.g. side forms; Removable supporting or anchoring means therefor, e.g. stakes
506for kerbs, gutters or similar structures, e.g. raised portions, median barriers
E03F 3/046
EFIXED CONSTRUCTIONS
03WATER SUPPLY; SEWERAGE
FSEWERS; CESSPOOLS
3Sewer pipe-line systems
04Pipes or fittings specially adapted to sewers
046Open sewage channels
E03F 5/06
EFIXED CONSTRUCTIONS
03WATER SUPPLY; SEWERAGE
FSEWERS; CESSPOOLS
5Sewerage structures
04Gullies ; inlets, road sinks, floor drains; with or without odour seals or sediment traps
06Gully gratings
E04F 19/10
EFIXED CONSTRUCTIONS
04BUILDING
FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
19Other details of constructional parts for finishing work on buildings
10Built-in gratings, e.g. foot-scrapers
Applicants
  • L & S ENTERPRISES, INC. [US/US]; Suite 104 851 Corporate Drive Lexington, KY 40503, US
Inventors
  • STEGALL, Lannie, L.; US
Agents
  • GILLIAM, Steven, D.; Gilliam & Stockwell Suite 200 801 Corporate Drive Lexington, KY 40503-5403, US
Priority Data
08/287,83109.08.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TRENCH COVER ASSEMBLY AND METHOD
(FR) ENSEMBLE COUVERTURE DE TRANCHEE ET PROCEDE DE CONSTRUCTION
Abstract
(EN)
A trench cover assembly (10) includes a cover member (12), a pair of opposed support members (14a, 14b) and means associated with said support members (14a, 14b) for holding said cover member (12) against vertical movement. The cover member (12) is formed with rabbets (34) along the top outer edge of opposing sides thereof. The support members (14a, 14b) are substantially C-shaped in cross section to provide a retaining area within which the cover member (12) is held against removal. The cover member (12) is slid into the end of the C-shaped support members (14a, 14b) to its functional position. The cover member (12) is secured against removal by closing the ends of the support members (14a, 14b). The upper horizontal leg (18a, 18b) of the C-shaped support members (14a, 14b) prevents the grate (12) from being lifted away. In an alternate embodiment, the upper horizontal leg (18a, 18b) of one of the support members (14a, 14b) includes a gap of length greater than the longitudinal length of the cover member (12). During assembly, the cover member (12) is passed through the gap and positioned to rest within the retaining areas of the support members (14a, 14b). A flat bar is then welded to the upper horizontal leg (18a, 18b) to eliminate the gap. In another alternate embodiment, one of the support members (14a, 14b) is formed as an angle iron. A vertical post is fixedly attached to a vertical rail of the angle iron. A horizontal plate is removably attached to the vertical post to overlie the horizontal rail of the angle iron and form an upper horizontal leg to secure the cover member (12) against lifting.
(FR)
Un ensemble couverture de tranchée (10) comprend une couverture (12), une paire de supports opposés (14a, 14b) et des moyens associés à ces derniers pour empêcher cette couverture (12) de se déplacer verticalement. Cette couverture est dotée de feuillures (34) le long de l'arête supérieure externe de ses côtés opposés. Les supports (14a, 14b) présentent une section transversale en C pour constituer une zone de retenue dans laquelle la couverture (12) est assujettie. Cette couverture est glissée dans l'extrémité des supports en C (14a, 14b) jusqu'à ce qu'elle adopte sa position fonctionnelle, puis assujettie par obturation des extrémités des supports (14a, 14b). Le segment horizontal supérieur (18a, 18b) des supports en C (14a, 14b) empêche le soulèvement de la grille (12). Dans une autre variante, le segment horizontal supérieur (18a, 18b) d'un des supports (14a, 14b) comprend un espace dont la longueur dépasse celle de la couverture (12). Pendant le montage, on fait passer la couverture par cet espace avant de la placer de façon à ce qu'elle repose dans les zones de retenue des supports (14a, 14b). Une barre plate est alors soudée au segment horizontal supérieur (18a, 18b), ce qui ferme cet espace. Dans une autre variante, un des supports (14a, 14b) prend la forme d'une équerre. Un pilier vertical est fixé au rail vertical de cette équerre. Une plaque horizontale est fixée amovible à ce pilier vertical de façon qu'elle recouvre le rail horizontal de l'équerre et constitue un segment horizontal pour empêcher le soulèvement de la couverture (12).
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