Sewer cleaning apparatus

Claim 2

A hose comprising: an external surface portion; an internal portion being disposed substantially within said external surface portion; marking means disposed substantially within said internal portion, said marking means being disposed over a length of said hose; said marking means being configured for being detected by sensing means at least for measuring a length of said hose; said marking means comprising a continuous conductive film and a plurality of gaps being cut into and disposed within said conductive film; said conductive film being configured for being detected by sensing means; said plurality of gaps comprising orifices being cut into and disposed within said conductive film; said conductive film being continuously conductive between a plurality of said gaps; and said plurality of gaps being spaced apart and disposed over a length of said hose for being detected by the sensing means at least to measure a length of said hose; said conductive film comprising a metal conductor; said internal portion comprising a plurality of coaxial cylindrical layers; said conductive film being disposed between two of said layers; said conductive film being self-adhesive and being adhesively attached to at least one of said layers of said internal portion; said conductive film having an electrical conductivity substantially higher than that of other components of said hose; said conductive film having an electrical conductivity about 10 times higher than that of other components of said hose; said plurality of gaps being disposed at substantially regular intervals along a length of said hose; said layers of said internal portion comprising: an internal tube; a first reinforcement layer disposed about said internal tube; an intermediate layer disposed about said first reinforcement layer; and a second reinforcement layer disposed about said intermediate layer; said external surface being disposed about said second reinforcement layer; said internal tube comprising a polymer compound material; said first reinforcement layer and said second reinforcement layer comprising a textile material; said intermediate layer comprising a polymer compound material; said external surface comprising a polymer compound material; said first reinforcement layer being adherisation treated for attachment to adjacent layers of said internal portion; said first reinforcement layer being adhesively attached to said internal tube and said intermediate layer; each of said first reinforcement layer and said second reinforcement layer comprising a woven fabric material; said conductive film being disposed between said intermediate layer and said second reinforcement layer; said conductive film being concealed under said external surface portion of said hose; external marking means for delineating lengths of said hose, said external marking means being disposed on an outer portion of said external surface portion; said external marking means comprising at least one of paint and ink applied on the outer portion of said external surface portion; said marking means being for supplementing said external marking means; said conductive film being a sheath; and said conductive film and said gaps for being detected by electromagnetic detection means.

Claim 3

A hose comprising: an external surface portion; an internal portion being disposed substantially within said external surface portion; marking means disposed substantially within said internal portion, said marking means being disposed over a length of said hose; said marking means being configured for being detected by sensing means at least for measuring a length of said hose; said marking means comprising a continuous conductive film and a plurality of gaps being cut into and disposed within said conductive film; said conductive film being configured for being detected by sensing means; said plurality of gaps comprising orifices being cut into and disposed within said conductive film; said conductive film being continuously conductive between a plurality of said gaps; and said plurality of gaps being spaced apart and disposed over a length of said hose for being detected by the sensing means at least to measure a length of said hose; said conductive film comprising a conductive polymer; said internal portion comprising a plurality of coaxial cylindrical layers; said conductive film being disposed between two of said layers; said conductive film being self-adhesive and being adhesively attached to at least one of said layers of said internal portion; said conductive film having an electrical conductivity substantially higher than that of other components of said hose; said conductive film having an electrical conductivity about 10 times higher than that of other components of said hose; said plurality of gaps being disposed at substantially regular intervals along a length of said hose; said layers of said internal portion comprising: an internal tube; a first reinforcement layer disposed about said internal tube; an intermediate layer disposed about said first reinforcement layer; and a second reinforcement layer disposed about said intermediate layer; said external surface being disposed about said second reinforcement layer; said internal tube comprising a polymer compound material; said first reinforcement layer and said second reinforcement layer comprising a textile material; said intermediate layer comprising a polymer compound material; said external surface comprising a polymer compound material; said first reinforcement layer being adherisation treated for attachment to adjacent layers of said internal portion; said first reinforcement layer being adhesively attached to said internal tube and said intermediate layer; each of said first reinforcement layer and said second reinforcement layer comprising a woven fabric material; said conductive film being disposed between said intermediate layer and said second reinforcement layer; said conductive film being concealed under said external surface portion of said hose; external marking means for delineating lengths of said hose, said external marking means being disposed on an outer portion of said external surface portion; said external marking means comprising at least one of paint and ink applied on the outer portion of said external surface portion; said marking means being for supplementing said external marking means; said conductive film being a sheath; and said conductive film and said gaps for being detected by electromagnetic detection means.

Claim 4

A hose comprising: an external surface portion; an internal portion being disposed substantially within said external surface portion; marking means disposed substantially within said internal portion, said marking means being disposed over a length of said hose; said marking means being configured for being detected by sensing means at least for measuring a length of said hose; said marking means comprising a continuous conductive film and a plurality of gaps being cut into and disposed within said conductive film; said conductive film being configured for being detected by sensing means; said plurality of gaps comprising orifices being cut into and disposed within said conductive film; said conductive film being continuously conductive between a plurality of said gaps; and said plurality of gaps being spaced apart and disposed over a length of said hose for being detected by the sensing means at least to measure a length of said hose; said conductive film comprising a conductive polymer; said internal portion comprising a plurality of coaxial cylindrical layers; said conductive film being disposed between two of said layers; said conductive film being self-adhesive and being adhesively attached to at least one of said layers of said internal portion; said conductive film having an electrical conductivity substantially higher than that of other components of said hose; said conductive film having an electrical conductivity about 10 times higher than that of other components of said hose; said plurality of gaps being disposed at substantially regular intervals along a length of said hose; said layers of said internal portion comprising: an internal tube; a first reinforcement layer disposed about said internal tube; an intermediate layer disposed about said first reinforcement layer; and a second reinforcement layer disposed about said intermediate layer; said external surface being disposed about said second reinforcement layer; said internal tube comprising a polymer compound material; said first reinforcement layer and said second reinforcement layer comprising a textile material; said intermediate layer comprising a polymer compound material; said external surface comprising a polymer compound material; said first reinforcement layer being adherisation treated for attachment to adjacent layers of said internal portion; said first reinforcement layer being adhesively attached to said internal tube and said intermediate layer; each of said first reinforcement layer and said second reinforcement layer comprising a woven fabric material; said conductive film being disposed between said intermediate layer and said second reinforcement layer; said conductive film being concealed under said external surface portion of said hose; external marking means for delineating lengths of said hose, said external marking means being disposed on an outer portion of said external surface portion; said external marking means comprising at least one of paint and ink applied on the outer portion of said external surface portion; said marking means being for supplementing said external marking means; said conductive film being a sheath; and said conductive film and said gaps for being detected by electromagnetic detection means.