Polymer-lined fluid transmission line
AssigneeReinke Manufacturing Co., Inc.
InventorsDouglas Lynn Wilkinson, Jon Patrick Henry, Russell Scott Reinke
Life of this patent
Estimating the term…
Abstract
A polymer-lined fluid transmission line includes various structures, including a first polymer-lined pipe, a second polymer-lined pipe, and one or more sleeve retainers installed at a pipe junction between the polymer-lined pipes. Among other things, the sleeve retainers may include one or more protuberances to frictionally engage the polymer-lined pipes or a one or more portions that protrude into a space between the polymer-lined pipes to help retain and protect polymer sleeves.
Claims18
A sleeve retainer for a polymer-lined pipe, the sleeve retainer comprising:
- a tubular body comprising a first terminal end and a second terminal end and comprising an interior surface and an exterior surface, wherein the exterior surface includes one or more protuberances thereon;
- the first terminal end of the tubular body configured to be inserted into the polymer-lined pipe;
- and
- a flange protruding radially outward from the second terminal end, the flange comprising:
- a flange base connected to the tubular body;
- a flange distal edge spaced radially outward from the flange base;
- and
- a first surface that transitions to the exterior surface of the tubular body at the flange base and a second surface that transitions to the interior surface of the tubular body at the flange base;
- wherein the first surface includes a chamfer that transitions from a first position between the flange distal edge and the flange base to the flange distal edge of the flange, wherein the tubular body comprises an inner core and an outer core, and wherein the inner core includes a higher durometer than the outer core.
A sleeve retainer for a polymer-lined pipe, the sleeve retainer comprising:
- a tubular body comprising a first terminal end and a second terminal end and comprising an interior surface and an exterior surface, wherein the exterior surface includes one or more protuberances thereon;
- the first terminal end of the tubular body configured to be inserted into a first polymer-lined pipe and the second terminal end of the tubular body configured to be inserted into a second polymer-line pipe;
- and
- a flange protruding radially outward from the exterior surface at a position between the first terminal end and the second terminal end, the flange comprising:
- a flange base connected to the tubular body;
- a flange distal edge spaced radially outward from the flange base;
- and
- a first surface, a second surface, and a thickness between the first surface and the second surface;
- the first surface and the second surface each transitioning from the exterior surface of the tubular body to the flange distal edge on opposing sides of the flange;
- wherein the first surface includes a first chamfer that transitions to the flange distal edge;
- and
- wherein the second surface includes a second chamfer that transitions to the flange distal edge, wherein the tubular body comprises an inner core and an outer core, and wherein the inner core includes a higher durometer than the outer core.
Dependencies are inferred from the claim text.