Optical waveguides – Accessories – Splice box and surplus fiber storage/trays/organizers/ carriers
Reexamination Certificate
2003-03-25
2004-09-07
Prasad, Chandrika (Department: 2839)
Optical waveguides
Accessories
Splice box and surplus fiber storage/trays/organizers/ carriers
C385S136000, C385S137000
Reexamination Certificate
active
06788871
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to a housing for use in providing a connection between optical fibers located in line groups (trunking) or in wall boxes or underfloor boxes in a building and one or more items of equipment located within that building.
BACKGROUND OF THE INVENTION
The use of optical fibers as the medium for carrying signals is becoming evermore widespread and it is now not uncommon for equipment used in a building to have an optical fiber by means of which it can be coupled to a wall outlet. Wall outlets for optical fibers need to be able to provide an interconnection between equipment such as that referred to above and optical fibers located in for example the trunking of the building. They also need to provide a facility which allows for the fact that sometimes re-termination of fibers within the outlet is necessary.
SUMMARY OF THE INVENTION
The present invention is concerned with a housing which is designed to meet such requirements.
According to the present invention there is provided a housing for use in providing a connection between optical fibers located in trunking or the like in a building and one or more items of equipment, said housing comprising first and second housing members which are connectable. The first housing member is mountable on a wall or the like in the building so that it can receive optical fibers from the trunking and having formations which define a path for the fibers. The second housing member has formations which define a path which can receive the fibers from the first housing member and along which the fibers can be guided to a splice region. The housing member has further formations which define paths for fibers extending from the splice region to one or more outlets.
The second housing member may comprise two parts, a first part being pivotally connected to a first housing member and being molded so as to define the one or more outlets, and the second part may include a tray-like member which has the formations which define the paths. The splice region can be defined in the tray-like member and can be arranged to receive one or more splice units. Each splice unit may comprise a molded member which defines a number of side-by-side channels. The splice region may also accommodate a breakout unit which, when used, is disposed below the splice unit or units.
The molded formations may define paths which are arranged to have a radius of curvature which is not less than a preselected critical radius. The paths may be so defined that the optical fibers can extend around them a plurality of times.
The formations provided on the first housing member may define a path whose shape enables the direction of the fibers to be changed without subjecting the fiber to bending of less than a critical bending radius.
The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and specific objects attained by its uses, reference is made to the accompanying drawings and descriptive matter in which preferred embodiments of the invention are illustrated.
REFERENCES:
patent: 5661841 (1997-08-01), Van Noten
patent: 5668911 (1997-09-01), Debortoli
patent: 5754724 (1998-05-01), Peterson et al.
patent: 5781686 (1998-07-01), Robinson et al.
patent: 5790741 (1998-08-01), Vincent et al.
patent: 5804765 (1998-09-01), Siemon et al.
patent: 6282360 (2001-08-01), Milanowski et al.
patent: 0 583 541 (1994-02-01), None
patent: WO 98/48308 (1998-10-01), None
Krone GmbH
Prasad Chandrika
Rader & Fishman & Grauer, PLLC
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