Optical waveguides – Accessories – Splice box and surplus fiber storage/trays/organizers/ carriers
Patent
1996-09-19
1998-06-09
Ngo, John
Optical waveguides
Accessories
Splice box and surplus fiber storage/trays/organizers/ carriers
G02B 636
Patent
active
057648441
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to apparatus for arranging a plurality of stacks of optical fibre splice organizers in a closure, a splice closure, a kit of parts and a support for a stack of optical fibre splice organizers.
Enclosing and organizing optical fibre splices has been carried out in a variety of different ways in an attempt to optimize accessibility of the splices, to simplify their reorganization and to improve the sealing of the splices from the environment. A widely used system of organizing optical fibre splices involves the use of several splice organizers, for example in the form of trays, cassettes or the like, each of which accommodates a number of splices, generally holding the splices in position, and normally also providing bend radius control for the optical fibres.
U.S. Pat. No. 4,359,262 discloses an enclosure for optical fibre cable splices, comprising two spaced apart end plates, a pair of spaced tie members connecting the end plates, and a plurality of elongate trays supported on the tie members and mounted one above another, each tray accommodating several splices. The trays are held on the tie members by means of one or more restraining members passing around the tie members and the trays.
U.S. Pat. No. 4,679,896 discloses a tray assembly for organizing optical fibre splices, comprising an open channel shaped main frame having a bottom wall and upwardly extending side walls. A number of splice trays are removably carried in the main frame in vertically spaced, juxtaposed relationship on threaded studs extending vertically upwardly from the bottom wall through openings in the trays. The trays are maintained in a predetermined vertically spaced relationship by bosses formed on the base of the main frame and about the openings in the trays.
A connecting box for optical fibre cables is disclosed in U.S Pat. No. 4,911,521. The connecting box includes a plurality of container trays, each adapted to contain surplus lengths of end portions of optical fibres, the tracks being stacked one upon another. The stack of trays is secured to an elongate connecting plate, by the lowermost tray being fastened thereto by means of suitable fastening means such as screws. Each tray is hingedly connected to each adjacent tray at one lateral side thereof in a releasable manner.
U.S. Pat. No. 5,042,901 discloses a watertight fibre optic splice closure having a passage in an end wall which is closed by a plug. A preconnected optical connector sleeve is mounted to be accessible from the passage, so that an outside optical fibre may be connected to a drop fibre without dismantling the closure. The splice closure comprises an exterior cylindrical shell and disc-shaped end walls. Rectangular metal supporting bars provide internal support and grounding, and a splice tray is mounted on one of the supporting bars.
SUMMARY OF THE INVENTION
According to a first aspect of the present invention, there is provided an apparatus for arranging a plurality of stacks of optical fibre splice organizers in a closure, comprising: frame; organizers.
According to a second aspect of the invention, there is provided an optical fibre splice closure, comprising:
According to a third aspect of the invention, there is provided a kit of parts for arranging a plurality of stacks of optical fibre splice organizers in a closure, comprising: a stack of organizers so that the stack extends laterally, preferably substantially perpendicularly, with respect to the frame or at least that part of the frame which is elongate.
According to a fourth aspect of the invention, there is provided a kit of parts for arranging one or more stacks of optical fibre splice organizers in a closure, comprising: for locating at least two optical fibre splice organizer supports thereon; and each organizer support can be attached to the frame and can support a stack of organizers so that the stack extends laterally, preferably substantially perpendicularly, with respect to the frame or at least that part of the frame which is el
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Burkard Herbert G.
N.V. Raychem S.A.
Ngo John
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