Hose structure

Claim 2

A flexible wire reinforced hose of integral construction adapted to resist high pressure, said hose comprising an inner tubular member of flexible polymeric material extending longitudinally of the hose to form the innermost portion thereof at least two spaced reinforcing layers comprised of a plurality of closely spaced spirally wound flexible metallic wire elements disposed around said tubular member, and an insulating layer disposed between the said reinforcing layers with the innermost reinforcing layer in direct contact with and directly supported by the outer peripheral surface of said tubular member to provide reinforcement for the hose and with said wire elements having a small cross-sectional dimension in relation to the wall thickness of said tubular member, said tubular member including a multiplicity of lengths of short filaments of flexible relatively inert high structural strength material randomly disposed throughout the material of the tubular member and oriented generally in direction parallel to the longitudinal axis of the hose to provide strength and heat resistance.

Claim 3

The hose as claimed in claim 1 wherein said filaments include a coating of a bonding agent on the exterior surface thereof to effect adhesion between the filaments and the material of the tubular member.

Claim 4

The hose as claimed in claim 1 wherein said filaments are untreated and said tubular member is comprised of an elastomeric material including a bonding agent incorporated therein to effect adhesion between the filaments and the material of the tubular member.

Claim 5

The hose as claimed in claim 1 wherein said filaments are comprised of staple textile fibers.

Claim 6

The hose as claimed in claim 4 wherein said fibers are composed of nylon.

Claim 7

The hose as claimed in claim 1 wherein rigid means is connected to said tubular member.

Claim 8

In an integral hose structure for carrying fluid under pressure including a fluid impervious inner layer of elastomeric material, alternating successive layers comprised of insulating elastomeric material and closely spaced spirally wound metallic wire material of small diameter surrounding said inner layer, and an outer layer of elastomeric material encasing the said inner layer and said reinforcing and insulating layers, the improvement wherein the innermost layer of said wire material is directly applied to and directly supported by said inner layer and said inner layer includes a plurality of lengths of short filaments of relatively inert flexible high structural strength material randomly dispersed therein and oriented generally in a direction parallel to the longitudinal axis of the hose to form a substantially homogeneous layer which will resist movement of said inner layer in a longitudinal direction when subject to outside forces and will support said wire material without damage thereto.

Claim 9

In an integral hose structure for carrying fluid under pressure including a fluid impervious inner layer of elastomeric material, alternating successive layers comprised of insulating elastomeric material and closely spaced spirally wound metallic wire material of small diameter surrounding said inner layer, and an outer layer of elastomeric material encasing the said inner layer and said reinforcing and insulating layers, the improvement wherein the innermost layer of said wire material is directly applied to and directly supported by said inner layer and said inner layer includes a plurality of lengths of short filaments of relatively inert flexible high structural strength material randomly dispersed therein and oriented generally in a direction parallel to the longitudinal axis of the hose to form a substantially homogeneous layer which will resist movement of said inner layer in a longitudinal direction when subject to outside forces and will support said wire material without damage thereto.

Claim 10

The improvement as claimed in claim 7 wherein at least one of said reinforcing layers is comprised of braided strands of flexible metallic material.

Claim 11

In combination, a flexible wire-reinforced hose and a connecting means therefor attached at the end of the hose, said hose being of integral construction comprising an inner tube of flexible polymeric material extending longitudinally of the hose to form the innermost portion thereof which is engaged by said connecting means and at least two spaced reinforcing layers comprised of a plurality of closely spaced spirally wound flexible metallic wire elements surrounding said tube, an insulating layer of flexible polymeric material disposed between the said reinforcing layers and a cover layer of flexible polymeric material surrounding the outermost reinforcing layer with the innermost reinforcing layer in direct contact with and directly supported by said tube and with said wire elements having a small cross section in relation to the wall thickness of said tube, said tube including a multiplicity of lengths of short filaments of Flexible relatively inert high structural strength material having a maximum length of about one-half of an inch and typically having a length of from about 1/4 to about 3/8 of an inch, said flexible material randomly disposed in said inner layer and oriented generally in a direction parallel to the longitudinal axis of the hose to provide the tube with longitudinal strength and heat resistance thereby enabling the hose to retain said connecting means.

Claim 12

In combination, a flexible wire-reinforced hose and a connecting means therefor attached at the end of the hose, said hose being of integral construction comprising an inner tube of flexible polymeric material extending longitudinally of the hose to form the innermost portion thereof which is engaged by said connecting means and at least two spaced reinforcing layers comprised of a plurality of closely spaced spirally wound flexible metallic wire elements surrounding said tube, an insulating layer of flexible polymeric material disposed between the said reinforcing layers and a cover layer of flexible polymeric material surrounding the outermost reinforcing layer with the innermost reinforcing layer in direct contact with and directly supported by said tube and with said wire elements having a small cross section in relation to the wall thickness of said tube, said tube including a multiplicity of lengths of short filaments of Flexible relatively inert high structural strength material having a maximum length of about one-half of an inch and typically having a length of from about 1/4 to about 3/8 of an inch, said flexible material randomly disposed in said inner layer and oriented generally in a direction parallel to the longitudinal axis of the hose to provide the tube with longitudinal strength and heat resistance thereby enabling the hose to retain said connecting means.

Claim 13

The combination as claimed in claim 9 wherein at lest one of said reinforcing layers is comprised of braided strands of flexible metallic material.

Claim 14

The combination as claimed in claim 9 wherein a layer of elastomeric material surrounds the radially outermost reinforcing layer.

Claim 15

The combination as claimed in claim 11 wherein said connecting means is a coupling including an elongated nipple extending into the bore of said tube and a shell surrounding the outer peripheral surface of the end portion of said hose with said nipple and said shell in intimate engagement with the end portion of said hose.

Claim 16

The combination as claimed in claim 12 wherein said nipple includes a plurality of teeth provided on its outer peripheral surface which are embedded in the inner peripheral surface of the tube and said shell includes a plurality of teeth provided on its inner peripheral surface which bear against the outermost reinforcing layer.