Abstract:
An environmentally sealed cable splice includes (a) a butt cable splice between at least two substantially side-by-side cables, (b) an enclosure sealed around said cables, the enclosure including (i) a first part through which the cable extends, and (ii) a second part which is hollow and together with the first part forms a closed space, the first and second parts having internal and external cross-sections such that one can be slid upon the other so as to give an overlap between the first and second parts, and (c) an inflated sealing member carrying sealing material, the sealing member being within the enclosure and in contact with the cables and the overlap.
Abstract:
A kit of parts for closing an end of a duct having a polygonal internal cross-section comprises: (a) a sealing member that can be inserted into the duct to form a seal therewith; and (b) a device that can be inserted into the duct to provide sealing material therein, comprising a support and sealing material located on the support. The device is shaped such that at least some of the sealing material of the device is located at the corners of a polygon, to form a seal, in use, between the sealing member and an internal surface of the duct at each corner of the polygonal internal cross-section thereof.
Abstract:
A method of enclosing a substrate within a heat-shrinkable sleeve, which comprises the steps of:a) attaching to the substrate a slideway;b) attaching to the slideway a clip having at least two legs;c) positioning a heat-shrinkable sleeve around the substrate;d) sliding the clip by means of the slideway and with respect to the substrate such that at least one portion of the sleeve becomes positioned between the legs of the clip, ande) causing heat-shrinkage of the sleeve.
Abstract:
A method of sealing a duct having a non-uniform cross-section which comprises:(i) positioning within the duct a device for locating a sealing material at a localized portion of an inner surface of the duct, at the non-uniformity; and(ii) positioning within the duct a sealing member than can at least partially block a cross-section of the duct such that the sealing material forms a seal between a portion of the duct and a portion of the sealing member.
Abstract:
A method of forming a branch-off seal between a heat-shrinkable sleeve and at least two substrates, which comprises the steps of: (a) positioning the substrates within the heat-shrinkable sleeve; (b) forming at least two heat-shrinkable terminal conduits by positioning a clip having at least three elongate legs over the outer surface of the heat-shrinkable sleeve at an open end thereof, wherein at least two of said legs are positioned externally of the sleeve, the substrates are within the terminal conduits and at least one of said legs is positioned internally of the sleeve, and (c) while the clip remains on the outer surface of the heat-shrinkable sleeve, applying heat so as to effect shrinkage of the sleeve and to form the desired seal; in which the leg positioned internally has a coating of heat-softenable sealing material that extends beyond its distal end, the extension being such that at least a portion of extending material does not flow significantly during step (c).
Abstract:
A sealing member is provided which can be spirally wrapped around an elongate article (e.g., a cable) comprises a strip of sealing material (e.g., gel sealing material), and at least one series of gripping elements situated adjacent to the strip of sealing material and extending beside a longitudinal edge of the sealing material. In use, the gripping elements cause the sealing member to grip an elongate article around which it is spirally wrapped. The sealing member may also include a support strip to which the strip of sealing material and each series of gripping elements are attached.
Abstract:
The present description pertains to a duct seal, or splice case seal, or other sealing member which is an inflatable envelope having an opening directly through a wall of the envelope or between walls thereof through which a probe is inserted to introduce a pressurizing medium. A means is provided for sealing of the sealing member upon withdrawal of the probe. Preferably the pressurizing medium is air. Preferably the walls of the envelope are substantially non-stretchable. An internal flap may be provided across the opening through which the probe is inserted, where the internal flap seals in response to pressure from within the sealing member. The flap preferably comprises a flexible polymeric sheet fixed to a wall of the sealing member such that the probe can pass through the hole and displace the flap, with the probe preferably passing between the flap and the wall substantially in the plane of the wall and at an angle of less than about 45.degree. to the plane of the wall. The opening through which the probe extends may be a lap join, and the opening may decrease in cross-sectional size toward the outside of the sealing member. A sealing material may be provided within the opening which is driven by internal pressure to block the opening upon withdrawal of the probe. A flap may be used in conjunction with the lap join opening.
Abstract:
An assembly capable of sealing an elongate substrate that is curved or angled along its length, which has a heat-shrinkable wraparound sleeve (1) having closure rails (3) adjacent opposing longitudinal edges thereof which can be held together by positioning a closure member thereover to maintain the sleeve in the wrapped-around configuration during heat-shrinkage and the closure member, which comprises an elongate channel (7) of sheet material substantially C-shaped in transverse cross-section having transverse first and second slits (9, 10) therein that extend substantially entirely across its width, respective first and second slits extending through each longitudinal edge, and giving the channel flexibility in two mutually perpendicular planes.
Abstract:
A container assembly having a body and a cover. The cover includes a cover rim having an inverted U-shape defining an outer flange and an inner flange separated by a top section, a lower part of the outer flange terminating in an end. The body includes a body rim defined by an upstanding inner wall and an upstanding outer wall joined to the inner wall by a top wall, a lower portion of the outer wall terminating in a gutter. The outer wall includes a recess and the outer flange includes a protrusion to enable a fitting of the protrusion into the recess. The outer flange includes a tab extending parallel to the top section and arranged at the lower part of the outer flange. The outer flange has weakening lines to allow a tear out of a section of the outer flange.
Abstract:
A kit for forming an optical fiber assembly includes a plurality of panels to be stacked together including a base panel and at least one further panel. Each panel includes a body with an opening therein, and an edge extending upwards from the body. A plurality of connector-retainers are carried by the body and extend beyond the edge for securing optical fiber connectors therein. The kit further includes a stacking member arranged for stacking the plurality of panels together so that the plurality of connector-retainers in a respective panel project into the opening in an adjacent panel while allowing the adjacent panel to rest on the edge of the respective panel.