IP Library Granted Patent US 8,136,516
Granted Patent B2
US 8,136,516 · App. 12/848,800 · Granted Mar 20, 2012

Concrete block splitting and pitching apparatus

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Quick Facts
Patent No.
US 8,136,516
App. No.
12/848,800
Granted
Mar 20, 2012
Kind
B2
Abstract

An apparatus for pitching and splitting a masonry block is provided. The apparatus includes a first pitching blade configured to move in a first direction. A second pitching blade is disposed adjacent to the first pitching blade, and the two pitching blades are separated by a distance that is small enough so that the splits initiated by each blade join into a single plane, thereby pitching and splitting the masonry block without the need for a splitting blade.

Claims (34)

1. An apparatus for processing a concrete block comprising:

a first pitching blade configured to move in a first direction to contact a surface of a concrete block; and

a second pitching blade adjacent and parallel to the first pitching blade, wherein the first pitching blade and the second pitching blade are separated by a distance to cause the concrete block to split primarily along a single split break starting at a point below the surface of the concrete block when the first pitching blade and the second pitching blade are driven into the concrete block, wherein a first pitch break emanates from the first pitching blade at a first angle relative to the single split break and a second pitch break emanates from the second pitching blade at a second angle relative to the single split break.

2. The apparatus of claim 1 wherein the first pitching blade and the second pitching blade are mounted on a common blade holder.

3. The apparatus of claim 1 further comprising a conformable material disposed between the first pitching blade and a press, the conformable material allowing the first pitching blade to move relative to the surface of the concrete block.

4. The apparatus of claim 1 wherein the first pitching blade and the second pitching blade are mounted on a common blade holder, and further comprising a conformable material disposed between the common blade holder and a press, the conformable material allowing the common blade holder to move relative to the surface of the concrete block.

5. The apparatus of claim 1 further comprising:

a third pitching blade opposite the first pitching blade and configured to move in a second direction; and

a fourth pitching blade opposite the second pitching blade and adjacent to the third pitching blade, wherein the third pitching blade and the fourth pitching blade are separated by a distance to cause the concrete block to split primarily along the single split break when the third pitching blade and the fourth pitching blade are driven into the concrete block.

6. The apparatus of claim 5 wherein the separation distance between the first pitching blade and the second pitching blade is different from the separation distance between the third pitching blade and the fourth pitching blade.

7. The apparatus of claim 5 wherein the third pitching blade and the fourth pitching blade are mounted on a common blade holder.

8. The apparatus of claim 5 further comprising a conformable material disposed between the third pitching blade and a surface, the conformable material allowing the third pitching blade to move relative to the surface of the concrete block.

9. The apparatus of claim 5 wherein the third pitching blade and the fourth pitching blade are mounted on a second common blade holder, and further comprising a conformable material disposed between the second common blade holder and a surface, the conformable material allowing the second common blade holder to move relative to the surface of the concrete block.

10. An apparatus for processing a concrete block comprising:

a first pitching blade; and

a second pitching blade adjacent to the first pitching blade, wherein the first pitching blade and the second pitching blade are separated by a distance and cause the concrete block to split primarily along a single split break formed at the junction of two pitch breaks when the first pitching blade and the second pitching blade are driven into the concrete block.

11. The apparatus of claim 10 further comprising a third pitching blade disposed essentially opposite to the first pitching blade.

12. The apparatus of claim 11 further comprising a fourth pitching blade disposed essentially opposite to the second pitching blade.

13. The apparatus of claim 10 wherein a splitting blade is not used to split the concrete block.

14. The apparatus of claim 10 further comprising:

a third pitching blade disposed essentially opposite to the first pitching blade; and

a fourth pitching blade disposed essentially opposite to the second pitching blade.

15. An apparatus for processing a concrete block comprising:

a first pitching blade configured to move in a first direction to contact a surface of a concrete block;

a second pitching blade adjacent and parallel to the first pitching blade, wherein the first pitching blade and the second pitching blade are separated by a distance to cause the concrete block to split primarily along a single split break starting at a point below the surface of the concrete block when the first pitching blade and the second pitching blade are driven into the concrete block, wherein a first pitch break emanates from the first pitching blade at a first angle relative to the single split break and a second pitch break emanates from the second pitching blade at a second angle relative to the single split break;

a third pitching blade opposite the first pitching blade and configured to move in a second direction; and

a fourth pitching blade opposite the second pitching blade and adjacent to the third pitching blade, wherein the third pitching blade and the fourth pitching blade are separated by a distance to cause the concrete block to split primarily along the single split break when the third pitching blade and the fourth pitching blade are driven into the concrete block;

the separation distance between the first pitching blade and the second pitching blade is different from the separation distance between the third pitching blade and the fourth pitching blade; and

the third pitching blade and the fourth pitching blade are mounted on a common blade holder.

16. The apparatus of claim 15 wherein the first pitching blade and the second pitching blade are mounted on a common blade holder.

17. The apparatus of claim 15 further comprising a conformable material disposed between the first pitching blade and a press, the conformable material allowing the first pitching blade to move relative to the surface of the concrete block.

18. The apparatus of claim 15 wherein the first pitching blade and the second pitching blade are mounted on a common blade holder, and further comprising a conformable material disposed between the common blade holder and a press, the conformable material allowing the common blade holder to move relative to the surface of the concrete block.

19. The apparatus of claim 15 further comprising a conformable material disposed between the third pitching blade and a surface, the conformable material allowing the third pitching blade to move relative to the surface of the concrete block.

20. The apparatus of claim 15 wherein the third pitching blade and the fourth pitching blade are mounted on a second common blade holder, and further comprising a conformable material disposed between the second common blade holder and a surface, the conformable material allowing the second common blade holder to move relative to the surface of the concrete block.

Assignments (9)
RELEASE OF SECURITY INTEREST IN PATENTS (RELEASES RF 031478/0756) Recorded May 4, 2016
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS SECOND LIEN AGENT
To: PAVESTONE, LLC
Reel/Frame 038610/0212 →
PATENT SECURITY AGREEMENT Recorded Oct 23, 2013
From: PAVESTONE, LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS SECOND LIEN AGENT
Reel/Frame 031478/0756 →
PATENT SECURITY AGREEMENT Recorded Oct 23, 2013
From: PAVESTONE, LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS FIRST LIEN AGENT
Reel/Frame 031477/0539 →
RELEASE OF SECURITY INTEREST IN PATENTS AT REEL/FRAME NO. 28488/0877 Recorded Oct 14, 2013
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: QUIKRETE HOLDINGS, INC.; THE QUIKRETE COMPANIES, INC.; QUIKRETE INTERNATIONAL, INC.; PAVESTONE, LLC; QUIKRETE CANADA HOLDINGS, LIMITED; SPEC/MIX, INC.
Reel/Frame 031408/0472 →
SECURITY AGREEMENT Recorded Oct 2, 2013
From: CUSTOM BUILDING PRODUCTS, INC.; QUIKRETE INTERNATIONAL, INC.; TARGET PRODUCTS LTD.; PAVESTONE, LLC; QUIKRETE HOLDINGS, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 031333/0741 →
SECURITY AGREEMENT Recorded Jul 2, 2012
From: THE QUIKRETE COMPANIES, INC.; QUIKRETE INTERNATIONAL, INC.; QUIKRETE HOLDINGS, INC.; QUIKRETE CANADA HOLDINGS, LIMITED; SPEC/MIX, INC.; PAVESTONE, LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 028488/0877 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 2, 2012
From: PAVESTONE COMPANY, LLC
To: PAVESTONE, LLC
Reel/Frame 027796/0732 →
CHANGE OF NAME Recorded Mar 2, 2012
From: PAVESTONE COMPANY, LP
To: PAVESTONE COMPANY, LLC
Reel/Frame 027796/0392 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 2, 2012
From: KARAU, WILLIAM H.; MARX, JOERG; DAVIS, TOMMY
To: PAVESTONE COMPANY, L.P.
Reel/Frame 027643/0649 →