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US 11,384,872 B1Granted
Conduit coupling apparatus and method
AssigneeHusqvarna AB
InventorsKent C. Ericksen, Eric Tres Wangsgaard, Scot W. Hoskisson, Stuart J. Eyring
Life of this patent
Estimating the term…
Abstract
A coupling may be configured to receive and secure an insertion end of a conduit. An outer surface of the insertion end of the conduit may be smooth and free of grooves, flanges and beads. A first member of the coupling may define a first passageway. A second member of the coupling may define a second passageway. The first member may be in engagement with the second member. A gripping ring having an inner edge defining a series of teeth may be disposed within the second member. A support ring and O-ring may also be disposed within the second member.
Claims20
A coupling for attachment to a conduit having an insertion end, an outer surface of the insertion end of the conduit being smooth and free of grooves, flanges and beads, said coupling comprising:
- a first member having an exterior surface and an interior surface, the interior surface of the first member defining a first passageway through the first member, the first passageway extending from an entry end to a proximal end of the first member, wherein the exterior surface of the first member defines a first outer perimeter surface that is cylindrical in shape, a second outer perimeter surface that is cylindrical in shape and radially offset inwardly with respect to the first outer perimeter surface;
- a second member having an exterior surface and an interior surface, the interior surface of the second member defining a second passageway through the second member, the second passageway extending from an attachment end to an opposite end of the second member, wherein the interior surface of the second member defines a first recessed region having a first width, and a second recessed region having a second width, the first width being greater than the second width, wherein the interior surface of the second member defines a first ledge intermediate the first recessed region and the second recessed region, wherein the first outer perimeter surface of the first member is in engagement with at least a portion of the interior surface of the second member defining the first recessed region, and the second outer perimeter surface of the first member is in engagement with at least a portion of the interior surface of the second member defining the second recessed region, wherein the coupling comprises a longitudinal axis extending from the entry end of the first member to the opposite end of the second member;
- the interior surface of the second member defining another ledge, the another ledge comprising a raised inner lip and a recessed outer portion, the raised inner lip being closer to the attachment end of the second member than the recessed outer portion, the recessed outer portion comprising an arcuate surface having an arcuate, side cross-sectional shape;
- a gripping ring having an inner edge defining a series of teeth, the gripping ring being disposed at least partially within the second recessed region;
- a support ring being disposed at least partially within the second recessed region, the support ring having an exterior surface, a proximal face, an angled face, and an O-ring recess, the exterior surface of the support ring comprising a radially outer surface of the support ring, the proximal face being radially intermediate the exterior surface of the support ring and the angled face, the proximal face being disposed opposite the O-ring recess along the longitudinal axis, wherein the proximal face is inwardly recessed such that the proximal face defines a first frustoconical shaped recess, and wherein the angled face is inwardly recessed such that the angled face defines a second frustoconical shaped recess;
- and
- an O-ring disposed intermediate the another ledge and the support ring.
4 more elements
A coupling for attachment to a conduit having an insertion end, an outer surface of the insertion end of the conduit being smooth and free of grooves, flanges and beads, said coupling comprising:
- a first member having an exterior surface and an interior surface, the interior surface of the first member defining a first passageway through the first member, the first passageway extending from an entry end to a proximal end of the first member, wherein the exterior surface of the first member defines a first outer perimeter surface that is cylindrical in shape, a second outer perimeter surface that is cylindrical in shape and radially offset inwardly with respect to the first outer perimeter surface;
- a second member having an exterior surface and an interior surface, the interior surface of the second member defining a second passageway through the second member, the second passageway extending from an attachment end to an opposite end of the second member, wherein the interior surface of the second member defines a first recessed region having a first width, and a second recessed region having a second width, the first width being greater than the second width, wherein the interior surface of the second member defines a first ledge intermediate the first recessed region and the second recessed region, wherein the first outer perimeter surface of the first member is in engagement with at least a portion of the interior surface of the second member defining the first recessed region, and the second outer perimeter surface of the first member is in engagement with at least a portion of the interior surface of the second member defining the second recessed region, wherein the coupling comprises a longitudinal axis extending from the entry end of the first member to the opposite end of the second member;
- a gripping ring having an inner edge defining a series of teeth, the gripping ring being disposed at least partially within the second recessed region;
- a support ring being disposed at least partially within the second recessed region, the support ring having an exterior surface, a proximal face, an angled face, and an O-ring recess, the exterior surface of the support ring comprising a radially outer surface of the support ring, the proximal face being radially intermediate the exterior surface of the support ring and the angled face, the proximal face being disposed opposite the O-ring recess along the longitudinal axis, wherein the proximal face is inwardly recessed such that the proximal face defines a first frustoconical shaped recess, and wherein the angled face is inwardly recessed such that the angled face defines a second frustoconical shaped recess;
- and
- a seal disposed intermediate another ledge and the support ring.
3 more elements
A coupling for attachment to a conduit having an insertion end, an outer surface of the insertion end of the conduit being smooth and free of grooves, flanges and beads, said coupling comprising:
- a first member having an exterior surface and an interior surface, the interior surface of the first member defining a first passageway through the first member, the first passageway extending from an entry end to a proximal end of the first member, wherein the exterior surface of the first member defines a first outer perimeter surface that is cylindrical in shape, a second outer perimeter surface that is cylindrical in shape and radially offset inwardly with respect to the first outer perimeter surface;
- a second member coupled to the first member, the second member having an exterior surface and an interior surface, the interior surface of the second member defining a second passageway through the second member, the second passageway extending from an attachment end to an opposite end of the second member, wherein the interior surface of the second member defines a first recessed region having a first width, and second recessed region having a second width, the first width being greater than the second width, wherein the interior surface of the second member defines a first ledge intermediate the first recessed region and the second recessed region, wherein the first outer perimeter surface of the first member is in engagement with at least a portion of the interior surface of the second member defining the first recessed region, and the second outer perimeter surface of the first member is in engagement with at least a portion of the interior surface of the second member defining the second recessed region, wherein the coupling comprises a longitudinal axis extending from the entry end of the first member to the opposite end of the second member;
- the interior surface of the second member defining another ledge, the another ledge comprising a raised inner lip and a recessed outer portion, the raised inner lip being closer to the attachment end of the second member than the recessed outer portion, the recessed outer portion comprising an arcuate surface having an arcuate, side cross-sectional shape;
- a gripping ring having an inner edge defining a series of teeth, the gripping ring being disposed at least partially within the second recessed region;
- a support ring being disposed at least partially within the second recessed region, the support ring having an exterior surface, a proximal face, an angled face, and an O-ring recess, the exterior surface of the support ring comprising a radially outer surface of the support ring, the proximal face being radially intermediate the exterior surface of the support ring and the angled face, the proximal face being disposed opposite the O-ring recess along the longitudinal axis, wherein the proximal face is inwardly recessed such that the proximal face defines a first frustoconical shaped recess, and wherein the angled face is inwardly recessed such that the angled face defines a second frustoconical shaped recess;
- and
- a seal disposed intermediate the another ledge and the support ring, wherein each of the first and second members is made from one or more polymers.
4 more elements
Dependencies are inferred from the claim text.