diff --git a/applications/utilities/mesh/generation/extrude2DMesh/extrude2DMesh/extrude2DMesh/extrude2DMesh.C b/applications/utilities/mesh/generation/extrude2DMesh/extrude2DMesh/extrude2DMesh/extrude2DMesh.C
index b9626e728b..23a0c18ab2 100644
--- a/applications/utilities/mesh/generation/extrude2DMesh/extrude2DMesh/extrude2DMesh/extrude2DMesh.C
+++ b/applications/utilities/mesh/generation/extrude2DMesh/extrude2DMesh/extrude2DMesh/extrude2DMesh.C
@@ -142,14 +142,6 @@ void Foam::extrude2DMesh::addFrontBackPatches()
                 patches
             ).ptr();
 
-//        newPatches[frontPatchi_] = polyPatch::New
-//        (
-//            "front",
-//            patchDict_,
-//            frontPatchi_,
-//            patches
-//        ).ptr();
-
         Info<< "Adding patch " << newPatches[frontPatchi_]->name()
             << " at index " << frontPatchi_
             << " for front faces." << nl << endl;
@@ -170,14 +162,6 @@ void Foam::extrude2DMesh::addFrontBackPatches()
                 patches
             ).ptr();
 
-//        newPatches[frontPatchi_] = polyPatch::New
-//        (
-//            "back",
-//            patchDict_,
-//            backPatchi_,
-//            patches
-//        ).ptr();
-
         Info<< "Adding patch " << newPatches[backPatchi_]->name()
             << " at index " << backPatchi_
             << " for back faces." << nl << endl;
diff --git a/src/dynamicMesh/extrudePatchMesh/extrudePatchMesh.C b/src/dynamicMesh/extrudePatchMesh/extrudePatchMesh.C
index d1a889ff73..7407eaef85 100644
--- a/src/dynamicMesh/extrudePatchMesh/extrudePatchMesh.C
+++ b/src/dynamicMesh/extrudePatchMesh/extrudePatchMesh.C
@@ -6,6 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2011-2016 OpenFOAM Foundation
+    Copyright (C) 2020 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -33,25 +34,22 @@ License
 #include "emptyPolyPatch.H"
 #include "wedgePolyPatch.H"
 
-
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
 namespace Foam
 {
+    defineTypeNameAndDebug(extrudePatchMesh, 0);
+}
 
-// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
-
-defineTypeNameAndDebug(extrudePatchMesh, 0);
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
-extrudePatchMesh::extrudePatchMesh
+Foam::extrudePatchMesh::extrudePatchMesh
 (
+    const word& regionName,
     const fvMesh& mesh,
-    const fvPatch& patch,
-    const dictionary& dict,
-    const word regionName,
-    const List<polyPatch*>& regionPatches
+    const fvPatch& p,
+    const dictionary& dict
 )
 :
     fvMesh
@@ -68,37 +66,35 @@ extrudePatchMesh::extrudePatchMesh
         Zero,
         false
     ),
-    extrudedPatch_(patch.patch()),
+    extrudedPatch_(p.patch()),
     dict_(dict)
+{}
+
+
+Foam::extrudePatchMesh::extrudePatchMesh
+(
+    const fvMesh& mesh,
+    const fvPatch& p,
+    const dictionary& dict,
+    const word& regionName,
+    const List<polyPatch*>& regionPatches
+)
+:
+    extrudePatchMesh(regionName, mesh, p, dict)
 {
     extrudeMesh(regionPatches);
 }
 
 
-extrudePatchMesh::extrudePatchMesh
+Foam::extrudePatchMesh::extrudePatchMesh
 (
     const fvMesh& mesh,
-    const fvPatch& patch,
+    const fvPatch& p,
     const dictionary& dict,
-    const word regionName
+    const word& regionName
 )
 :
-    fvMesh
-    (
-        IOobject
-        (
-            regionName,
-            mesh.facesInstance(),
-            mesh,
-            IOobject::READ_IF_PRESENT,
-            IOobject::NO_WRITE,
-            true
-        ),
-        Zero,
-        false
-    ),
-    extrudedPatch_(patch.patch()),
-    dict_(dict)
+    extrudePatchMesh(regionName, mesh, p, dict)
 {
     List<polyPatch*> regionPatches(3);
     List<word> patchNames(regionPatches.size());
@@ -125,7 +121,7 @@ extrudePatchMesh::extrudePatchMesh
 
     forAll(regionPatches, patchi)
     {
-        dictionary&  patchDict = dicts[patchi];
+        dictionary& patchDict = dicts[patchi];
         patchDict.set("nFaces", 0);
         patchDict.set("startFace", 0);
 
@@ -136,14 +132,13 @@ extrudePatchMesh::extrudePatchMesh
                 patchi,
                 mesh.boundaryMesh()
             ).ptr();
-
     }
 
     extrudeMesh(regionPatches);
 }
 
 
-void extrudePatchMesh::extrudeMesh(const List<polyPatch*>& regionPatches)
+void Foam::extrudePatchMesh::extrudeMesh(const List<polyPatch*>& regionPatches)
 {
     if (this->boundaryMesh().size() == 0)
     {
@@ -247,6 +242,7 @@ void extrudePatchMesh::extrudeMesh(const List<polyPatch*>& regionPatches)
             firstDisp[regionI] = model_()(regionPt, n, 1) - regionPt;
         }
 
+        const label nNewPatches = regionPatches.size();
 
         // Extrude engine
         createShellMesh extruder
@@ -255,46 +251,6 @@ void extrudePatchMesh::extrudeMesh(const List<polyPatch*>& regionPatches)
             pointLocalRegions,
             localRegionPoints
         );
-/*
-        List<polyPatch*> regionPatches(3);
-        List<word> patchNames(regionPatches.size());
-        List<word> patchTypes(regionPatches.size());
-        PtrList<dictionary> dicts(regionPatches.size());
-
-        forAll(dicts, patchi)
-        {
-            if (!dicts.set(patchi))
-            {
-                dicts.set(patchi, new dictionary());
-            }
-        }
-
-        dicts[bottomPatchID] = dict_.subDict("bottomCoeffs");
-        dicts[sidePatchID] = dict_.subDict("sideCoeffs");
-        dicts[topPatchID] = dict_.subDict("topCoeffs");
-
-        forAll(dicts, patchi)
-        {
-            dicts[patchi].readEntry("name", patchNames[patchi]);
-            dicts[patchi].readEntry("type", patchTypes[patchi]);
-        }
-
-        forAll(regionPatches, patchi)
-        {
-            dictionary&  patchDict = dicts[patchi];
-            patchDict.set("nFaces", 0);
-            patchDict.set("startFace", 0);
-
-            regionPatches[patchi] = polyPatch::New
-                (
-                    patchNames[patchi],
-                    patchDict,
-                    patchi,
-                    mesh.boundaryMesh()
-                ).ptr();
-
-        }
-*/
         this->clearOut();
         this->removeFvBoundary();
         this->addFvPatches(regionPatches, true);
@@ -315,7 +271,7 @@ void extrudePatchMesh::extrudeMesh(const List<polyPatch*>& regionPatches)
             }
         }
 
-        polyTopoChange meshMod(regionPatches.size());
+        polyTopoChange meshMod(nNewPatches);
 
         extruder.setRefinement
         (
@@ -343,8 +299,4 @@ void extrudePatchMesh::extrudeMesh(const List<polyPatch*>& regionPatches)
 }
 
 
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-} // End namespace Foam
-
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
diff --git a/src/dynamicMesh/extrudePatchMesh/extrudePatchMesh.H b/src/dynamicMesh/extrudePatchMesh/extrudePatchMesh.H
index ca394d7236..72040e91d2 100644
--- a/src/dynamicMesh/extrudePatchMesh/extrudePatchMesh.H
+++ b/src/dynamicMesh/extrudePatchMesh/extrudePatchMesh.H
@@ -6,6 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2011-2016 OpenFOAM Foundation
+    Copyright (C) 2020 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -94,10 +95,7 @@ class extrudePatchMesh
 :
     public fvMesh
 {
-
-private:
-
-    // Private data
+    // Private Data
 
         //- Enumeration of patch IDs
         enum patchID
@@ -114,11 +112,20 @@ private:
         dictionary dict_;
 
 
-    // Private member functions
+    // Private Member Functions
 
         //- Extrude mesh using polyPatches
         void extrudeMesh(const List<polyPatch*>& regionPatches);
 
+        //- Construct from mesh, patch and dictionary without patches.
+        //  Only used internally
+        extrudePatchMesh
+        (
+            const word& regionName,
+            const fvMesh& mesh,
+            const fvPatch& p,
+            const dictionary& dict
+        );
 
 public:
 
@@ -131,20 +138,20 @@ public:
         //- Construct from mesh, patch and dictionary
         extrudePatchMesh
         (
-            const fvMesh&,
-            const fvPatch&,
-            const dictionary&,
-            const word
+            const fvMesh& mesh,
+            const fvPatch& p,
+            const dictionary& dict,
+            const word& regionName
         );
 
         //- Construct from mesh, patch, dictionary and new mesh
         //  polyPatch information
         extrudePatchMesh
         (
-            const fvMesh&,
-            const fvPatch&,
-            const dictionary&,
-            const word,
+            const fvMesh& mesh,
+            const fvPatch& p,
+            const dictionary& dict,
+            const word& regionName,
             const List<polyPatch*>& polyPatches
         );
 
@@ -153,8 +160,7 @@ public:
     virtual ~extrudePatchMesh() = default;
 
 
-    // Member functions
-
+    // Member Functions
 
         // Access functions
 
@@ -187,9 +193,9 @@ public:
             {
                 return extrudedPatch_;
             }
-
 };
 
+
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 } // End namespace Foam