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US 4,361,722 AGranted
Sleeve head for closing the ends of a cable sleeve
AssigneeSiemens Aktiengesellschaft
InventorsDieter Kunze, Josef Bauer
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AssigneeSiemens Aktiengesellschaft
InventorsDieter Kunze, Josef Bauer
Estimating the term…
A sleeve head for closing an end of a cable sleeve, which sleeve head being a one piece member of a shrinkable material having a transverse wall with an integral outer wall portion and having at least one flange surrounding an opening so that a cable can be sealingly received in the head by shrinking the flange from an expanded state towards a normal state into sealing engagement on the cable, characterized by each of the flanges in the expanded state being expanded only in a radial direction and having substantially no deformation and stresses along the axial direction of the opening and the transverse wall adjacent each of the expanded flanges being folded outwardly to compensate for the expansion of the size of the flange so that during heat shrinking the flange shrinks radially inward onto a cable disposed therein with a folded wall moving to a substantial transverse planar condition without any axial shrinkage of the flange to create disruptions in the seals. If the flange has a sealing joint which includes an axial slot of the flange extending through a portion of the transverse wall and the adjacent wall portion, the flange in the expanded state has a non-uniform expansion so that the flange adjacent the slot has substantially no expansion so that during subsequent shrinking no contraction occurs adjacent the slots to cause a disruption in the sealing joint. Different methods can be utilized for expanding the flange without causing axial deformation.
In a sleeve head for closing an end of a cable sleeve, said sleeve head being a one piece member of a shrinkable material having a transverse wall with an integral outer wall portion and having at least one integral flange having an opening, each said flange forming cable inlet means for sealingly receiving a cable extending into the cable sleeve by shrinking from an expanded state toward a normal state and into sealing engagement on said cable when said cable is inserted therein, the improvements comprising each of said flanges in the expanded state being expanded only in a radial direction and having substantially no deformation and stresses along an axial direction of the opening, said transverse wall adjacent each of the expanded parts of said flanges being folded outwardly to compensate for the expansion of the size of said flanges so that during heat shrinking, each flange will shrink radially inward on a cable disposed therein with the folded wall moving to a substantially transverse planar condition without any axial shrinkage of the flanges to create disruptions on the seals.
A method for forming a sleeve head for closing the ends of a cable sleeve, said sleeve head being a single member having a transverse wall with an outer wall portion and at least one flange with an opening through the wall member, each flange forming cable inlet means for sealingly receiving a cable extending into the cable sleeve by shrinking from an expanded state toward a normal state and into sealing engagement with the cable inserted therein, said method including the steps of providing a sleeve head having a transverse wall with an integral outer wall portion and each flange with an opening through the member, and expanding each of the openings of each of the flanges to an expanded state by radially spreading the flange apart with the transverse wall adjacent the expanded flange being bulged into a folded condition without any axial deformation of said flange and transverse wall so that during subsequent heat shrinking of the flange onto a cable, no axial displacement occurs as the flange radially contracts onto a cable.
Dependencies are inferred from the claim text.