End connector for high pressure reinforced rubber hose
First Claim
1. An end connector for permanent attachment to reinforced hose having reinforcement, comprising:
- a stem having a coupler end, a hose receiver end;
a ferrule attached to the stem at an attachment point adjacent the coupler end, the stem and ferrule having a cavity located therebetween, extending along a length of the end connector, configured to receive an end of a reinforced hose therein, and divided into;
at least two gripping zones extending from adjacent a point where the ferrule is attached to the stem toward the hose receiver end, the at least two gripping zones including;
a first gripping zone located adjacent the point where the ferrule is attached to the stem and having a first plurality of flutes and lands formed in the stem, a second plurality of flutes and lands formed in the ferrule, wherein the first gripping zone further includes an expansion zone located adjacent the attachment point and an expansion zone located adjacent the attachment point and between the attachment point and the first plurality, wherein a distance between each of the flutes of the first plurality in the stem is different from a distance between each of the flutes of the second plurality, as taken along a longitudinal central axis of the end connector; and
a second gripping zone located nearer the hose receiver end than the first gripping zone and having a third plurality of flutes and lands formed in the stem, wherein a distance between each of the flutes of the third plurality is different from the distance between each of the flutes of the first and second plurality, as taken along the central axis, and having a fourth plurality of flutes and lands formed in the ferrule, wherein an axial distance between each of the flutes of the fourth plurality is different from an axial distance between each of the flutes of the second plurality, as taken along the central axis.
3 Assignments
0 Petitions
Accused Products
Abstract
A swage fitted end connector for high pressure large diameter reinforced flexible rubber hose utilizing sine-wave locking of the reinforcement and particularly suited to the petrochemical and drilling industries. Two embodiments of the connector for use with wire reinforced thin internal tube hose are disclosed: one with a diameter of 3-inches and for burst pressures up to 20,000 psi and the other for a diameter of 5-inches and for burst pressures up to 18,000 psi. All of the connectors will withstand the rated burst pressure of the hose without pumping off or leaking thus any hose that utilizes the device will fail before the connector pops off the hose. The connectors are designed to meet or exceed the new API temperature ranges and new API flexible specification levels which became effective in October 2006.
26 Citations
13 Claims
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1. An end connector for permanent attachment to reinforced hose having reinforcement, comprising:
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a stem having a coupler end, a hose receiver end; a ferrule attached to the stem at an attachment point adjacent the coupler end, the stem and ferrule having a cavity located therebetween, extending along a length of the end connector, configured to receive an end of a reinforced hose therein, and divided into;
at least two gripping zones extending from adjacent a point where the ferrule is attached to the stem toward the hose receiver end, the at least two gripping zones including;a first gripping zone located adjacent the point where the ferrule is attached to the stem and having a first plurality of flutes and lands formed in the stem, a second plurality of flutes and lands formed in the ferrule, wherein the first gripping zone further includes an expansion zone located adjacent the attachment point and an expansion zone located adjacent the attachment point and between the attachment point and the first plurality, wherein a distance between each of the flutes of the first plurality in the stem is different from a distance between each of the flutes of the second plurality, as taken along a longitudinal central axis of the end connector; and a second gripping zone located nearer the hose receiver end than the first gripping zone and having a third plurality of flutes and lands formed in the stem, wherein a distance between each of the flutes of the third plurality is different from the distance between each of the flutes of the first and second plurality, as taken along the central axis, and having a fourth plurality of flutes and lands formed in the ferrule, wherein an axial distance between each of the flutes of the fourth plurality is different from an axial distance between each of the flutes of the second plurality, as taken along the central axis. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A high pressure reinforced hose assembly, comprising:
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an end connector having a coupler end and a hose receiver end, comprising; a ferrule attached to a stem at an attachment point adjacent the coupler end, the stem and ferrule having a cavity located therebetween, extending along a length of the end connector, configured to receive an end of a reinforced hose therein, and divided into;
at least two gripping zones extending from adjacent a point where the ferrule is attached to the stem toward the hose receiver end, the at least two gripping zones including;a first gripping zone located adjacent the point where the ferrule is attached to the stem and having a first plurality of flutes and lands formed in the stem, and a second plurality of flutes and lands formed in the ferrule, wherein a distance between each of the flutes of the first plurality in the stem is different from a distance between each of the flutes of the second plurality, as taken along a longitudinal central axis of the end connector, and wherein the first gripping zone includes an expansion zone located adjacent the attachment point and located between the attachment point and the first plurality of flutes and lands; and a second gripping zone located nearer the hose receiver end than the first gripping zone and having a third plurality of flutes and lands formed in the stem, wherein a distance between each of the flutes of the third plurality is different from the distance between each of the flutes of the first and second plurality, as taken along the central axis, and having a fourth plurality of flutes and lands formed in the ferrule, wherein a distance between each of the flutes of the fourth plurality is different from the distance between each of the flutes of the second plurality, as taken along the central axis; and a section of high pressure reinforced hose having first and second ends, an innermost liner, and one or more reinforcement layers located over the innermost liner, the first end being received within the cavity such that a portion of the one or more reinforcement layers engages a reinforcement liner stop formed in the stem and located nearer the expansion zone than the first plurality of flutes and lands, the hose extending into the expansion zone and the innermost liner engaging an inner liner stop formed in the stem located nearer the hose receiver end than the reinforcement liner stop. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification