IP Library › Granted Patent US 7,958,847
Granted Patent B2
US 7,958,847 · App. 11/106,124 · Granted Jun 14, 2011

Coated clumping litter

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Quick Facts
Patent No.
US 7,958,847
App. No.
11/106,124
Granted
Jun 14, 2011
Kind
B2
Abstract

A clumping animal litter is disclosed which includes non-swelling particles and a swelling agent coated on the non-swelling particles. In one embodiment, the non-swelling particles are manufactured by agglomerating clay fines.

Claims (12)

1. An animal litter composition comprising (i) an absorbent particle comprising an agglomerated blend of (a) non-swelling clay fines, and (b) bentonite fines; and (ii) a swelling agent comprising bentonite powder coated on the absorbent particle.

2. An animal litter according to claim 1 wherein the agglomerated blend forms a core particle component of the composition having an outer surface and wherein the swelling agent is coated on the outer surface of the core particle.

3. An animal litter according to claim 2 wherein the bentonite powder comprises sodium bentonite.

4. An animal litter according to claim 2 wherein the core particle component of the composition has a size of from about −10 mesh to about +50 mesh.

5. An animal litter according to claim 2 wherein the composition has a size of from about −10 mesh to about +50 mesh.

6. An animal litter according to claim 2 wherein the swelling agent comprises bentonite powder coated on the outer surface of the core particle component.

7. An animal litter according to claim 6 wherein the bentonite fines of the agglomerated blend have a size of from about 100 mesh to about 300 mesh.

8. An animal litter according to claim 7 wherein the bentonite fines of the agglomerated blend have a size of about 200 mesh.

9. An animal litter according to claim 7 wherein the swelling agent is in an amount of from about 20% by weight to about 40% by weight.

10. An animal litter according to claim 9 wherein the swelling agent is in an amount of from about 25% by weight to about 40% by weight.

11. An animal litter according to claim 9 wherein the swelling agent is in an amount of from about 35% by weight to about 40% by weight.

12. An animal litter according to claim 7 wherein the core particle component comprises calcium-montmorillonite.

Assignments (7)
CORRECTIVE ASSIGNMENT TO CORRECT THE PATENT NUMBER 16062921 PREVIOUSLY RECORDED ON REEL 049391 FRAME 0756. ASSIGNOR(S) HEREBY CONFIRMS THE PATENT NUMBER SHOULD HAVE BEEN 16062912. Recorded Jul 3, 2020
From: NESTEC S.A.
To: SOCIÉTÉ DES PRODUITS NESTLÉ S.A.
Reel/Frame 054082/0165 →
CORRECTIVE ASSIGNMENT TO CORRECT THE PATENT NUMBER 16062921 PREVIOUSLY RECORDED ON REEL 049391 FRAME 0756. ASSIGNOR(S) HEREBY CONFIRMS THE PATENT NUMBER SHOULD HAVE BEEN 16062912. Recorded Jul 3, 2020
From: NESTEC S.A.
To: SOCIÉTÉ DES PRODUITS NESTLÉ S.A.
Reel/Frame 054082/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ENGLISH TRANSLATION TO SHOW THE FULL AND CORRECT NEW NAME IN SECTION 51. PREVIOUSLY RECORDED AT REEL: 049391 FRAME: 0756. ASSIGNOR(S) HEREBY CONFIRMS THE MERGER. Recorded Jun 13, 2019
From: NESTEC S.A.
To: SOCIÉTÉ DES PRODUITS NESTLÉ S.A.
Reel/Frame 049853/0398 →
MERGER Recorded Jun 6, 2019
From: NESTEC S.A.
To: SOCIÉTÉ DES PRODUITS NESTLÉ S.A.
Reel/Frame 049391/0756 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 28, 2006
From: NPPC SERVICES, INC.
To: NESTEC, LTD.
Reel/Frame 018557/0493 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 28, 2006
From: GREENE, PHILLIP BRENT; JOB, JAMES DEAN; KEARBEY, JAMES MAX; MAURAS, CESAR J.
To: NESTLE' PURINA PETCARE COMPANY
Reel/Frame 018557/0373 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 28, 2006
From: NESTLE' PURINA PETCARE COMPANY
To: NPPC SERVICES, INC.
Reel/Frame 018557/0456 →