Sand tank discharge elbow

• US 20030173775A1
• Filed: 03/14/2003
• Published: 09/18/2003
• Est. Priority Date: 03/15/2002
• Status: Abandoned Application

• Current Assignee: Mclanahan Corporation
• Original Assignee: Mclanahan Corporation
• Inventors: Brennecke, Craig F., Weddle, David S.
• Application Number:
  US10/388,867
• Publication Number:
  US 20030173775A1
• Time in Patent Office: Days
• US Class Current: 285/179
• CPC Class Codes: F16L 43/00 Bends; Siphons with cleaning apertures F16L45/00

Abstract

An apparatus and method to attach a sand tank discharge elbow to a valve in a sand classification tank using a removable spline and an optional hose clamp.

Claims

1. A discharge elbow comprising:

a hollow body which has a first end, a second end, and defines an interior surface and an exterior surface,

wherein the interior surface defines a pipe receiving recess positioned adjacent to the first end of the hollow body, an annular spline receiving recess having a first width positioned in the pipe receiving recess, and a fluid conduit portion extending between the pipe receiving recess and the second end of the hollow body; and

the exterior surface defines a spline receiving orifice in fluid connection with the annular flange receiving recess defined by the interior surface of the hollow body.

2. The discharge elbow as claimed in claim 1, further comprising a stiffening fin added to the exterior surface of the hollow body.

3. The discharge elbow as claimed in claim 1, wherein the hollow body generally forms a curved shape.

4. The discharge elbow as claimed in claim 1, wherein the hollow body is formed from an injected molded polymer.

5. A sand classifying tank comprising:

a bottom portion defining a plurality of orifices which receive a corresponding valve;

a pipe having a first pipe end and a second pipe end connected to the valve via the first pipe end; and

a discharge elbow connected to the second pipe end of the pipe, the discharge elbow comprising;

a hollow body which has a first end, a second end, and defines an interior surface and an exterior surface,

wherein the interior surface defines a pipe receiving recess positioned adjacent to the first end of the hollow body, an annular spline receiving recess having a first width positioned in the pipe receiving recess, and a fluid conduit portion extending between the pipe receiving recess and the second end of the hollow body; and

the exterior surface defines a spline receiving orifice in fluid connection with the annular flange receiving recess defined by the interior surface of the hollow body.

6. The sand classifying tank as claimed in claim 5, wherein the second pipe end defines an annular pipe recess having a second width approximately equal to the first width of the annular flange receiving recess defined by the interior surface of the hollow body of the discharge elbow.

7. A method of installing the discharge elbow onto a pipe having a first pipe end and a second pipe end, the discharge elbow comprising a hollow body which has a first end, a second end, and defines an interior surface and an exterior surface,

wherein the interior surface defines a pipe receiving recess positioned adjacent to the first end of the hollow body, an annular spline receiving recess having a first width positioned in the pipe receiving recess, and a fluid conduit portion extending between the pipe receiving recess and the second end of the hollow body;

the exterior surface defines a spline receiving orifice in fluid connection with the annular flange receiving recess defined by the interior surface of the hollow body; and

the second pipe end defines an annular pipe recess having a second width approximately equal to the first width of the annular flange receiving recess defined by the interior surface of the hollow body of the discharge elbow, comprising the steps of;

(a) positioning the second pipe end of the pipe in the pipe receiving recess defined by the second end of the pipe;

(b) aligning the annular spline receiving recess with the annular pipe recess;

(c) inserting a flexible spline into the spline receiving orifice; and

(d) feeding the flexible spline through the aligned combination of the annular spline receiving recess and the annular pipe recess to mate the pipe and the discharge elbow together.