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 and a hose receiver end; and
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 attachment point where the ferrule is attached to the stem and having a first set of at least three flutes and lands formed in the stem, and a second set of at least three flutes and lands formed in the ferrule, wherein an axial distance between each of the flutes of the first set in the stem is different from an axial distance between each of the flutes of the second set in the ferrule, 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 set of at least three flutes and lands formed in the stem, wherein an axial distance between each of the flutes of the third set in the stem is different from the axial distances between each of the flutes of the first set and each of the flutes of the second set, as taken along the central axis, and having a fourth set of at least three flutes and lands formed in the ferrule, wherein an axial distance between each of the flutes of the fourth set in the ferrule is different from the axial distance between each of the flutes of the second set in the ferrule, as taken along the central axis.
3 Assignments
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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.
27 Citations
19 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 and a hose receiver end; and 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 attachment point where the ferrule is attached to the stem and having a first set of at least three flutes and lands formed in the stem, and a second set of at least three flutes and lands formed in the ferrule, wherein an axial distance between each of the flutes of the first set in the stem is different from an axial distance between each of the flutes of the second set in the ferrule, 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 set of at least three flutes and lands formed in the stem, wherein an axial distance between each of the flutes of the third set in the stem is different from the axial distances between each of the flutes of the first set and each of the flutes of the second set, as taken along the central axis, and having a fourth set of at least three flutes and lands formed in the ferrule, wherein an axial distance between each of the flutes of the fourth set in the ferrule is different from the axial distance between each of the flutes of the second set in the ferrule, 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 attachment point where the ferrule is attached to the stem and having a first set of at least three flutes and lands formed in the stem, and a second set of at least three flutes and lands formed in the ferrule, wherein an axial distance between each of the flutes of the first set in the stem is different from an axial distance between each of the flutes of the second set in the ferrule, 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 set of at least three flutes and lands formed in the stem, wherein an axial distance between each of the flutes of the third set in the stem is different from the axial distances between each of the flutes of the first set and each of the flutes of the second set, as taken along the central axis, and having a fourth set of at least three flutes and lands formed in the ferrule, wherein an axial distance between each of the flutes of the fourth set in the ferrule is different from the axial distance between each of the flutes of the second set in the ferrule, 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. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. 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 attachment point where the ferrule is attached to the stem and having a first set of at least three flutes and lands formed in the stem, and a second set of at least three flutes and lands formed in the ferrule, wherein an axial distance between each of the flutes of the first set in the stem is different from an axial distance between each of the flutes of the second set in the ferrule, as taken along a longitudinal central axis of the end connector, wherein the first gripping zone further includes a reinforcement liner stop formed in the stem and located nearer the coupler end than the first set of at least three flutes and lands; and a second gripping zone located nearer the hose receiver end than the first gripping zone and having a third set of at least three flutes and lands formed in the stem, wherein an axial distance between each of the flutes of the third set in the stem is different from the axial distances between each of the flutes of the first set and each of the flutes of the second set, as taken along the central axis, and having a fourth set of at least three flutes and lands formed in the ferrule, wherein an axial distance between each of the flutes of the fourth set in the ferrule is different from the axial distance between each of the flutes of the second set in the ferrule, 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, wherein ends of the first set of at least three flutes and lands are defined by the reinforcement liner stop and the innermost liner.
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Specification