Apparatus for mechanically projecting devices through tubes
AssigneeBarry Brothers Specialised Service
InventorRobert W. Vowles
Life of this patent
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Abstract
An apparatus is disclosed for projecting a stiffly flexible conduit or cable through a bore of a tube to be cleaned, surveyed or otherwise processed, said apparatus comprising a drum enabling the conduit or cable to be stored therein in a plurality of wound coils with a distal or free end of the conduit or cable to be projected from the apparatus and into the bore of the tube to be cleaned, surveyed or the like, the drum being mounted for simultaneous axial and rotary motion and drive means being provided to effect the axial and rotary motion of the drum, restraining means being provided to prevent radial expansion of the wound coils on the drum.
Claims20
Apparatus for projecting a device through a bore of a tube, said apparatus comprising a storage member having means for storing a stiffly flexible conduit or cable in a plurality of wound coils thereon with a distal end of said conduit or cable projecting from said apparatus and carrying said device,
- drive means to effect rotation of said storage member to extend said device away from said storage member or to retract said device toward said storage member and restraining means preventing radial expansion of said wound coils on said storage member during storage or during extension or retraction of said device.
Apparatus for projecting a device through a bore of a tube, said apparatus comprising a storage member having means for storing a stiffly flexible conduit or cable in a plurality of wound coils thereon with one end of said conduit or cable projecting from said apparatus and carrying said device,
- drive means to effect rotation of said storage member to extend said device away from said storage member or to retract said device toward said storage member and restraining means preventing radial expansion of said wound coils on said storage member during storage or during extension or retraction of said device.
Apparatus for projecting a device through a bore of a tube, said apparatus comprising a storage member having means for storing a stiffly flexible conduit or cable in a plurality of wound coils thereon with a distal end of said conduit or cable carrying said device and being arranged to project through a short rigid guide member fixed adjacent to said storage member and through a longer flexible guide member connected to said short rigid guide member, said longer flexible guide member having a free distal end which is manually positionable adjacent an end of said tube,
- drive means to effect rotation of said storage member to extend said device away from said storage member through said guide members or to retract said device toward said storage member and restraining means preventing radial expansion of said wound coils on said storage member during storage or during extension or retraction of said device.
Dependencies are inferred from the claim text.