IP Library Granted Patent US 8,277,715
Granted Patent B2
US 8,277,715 · App. 11/911,406 · Granted Oct 2, 2012

Process for manufacturing improved dispensing devices

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Quick Facts
Patent No.
US 8,277,715
App. No.
11/911,406
Granted
Oct 2, 2012
Kind
B2
Abstract

The present invention relates to a method for the manufacture of a lavatory dispensing device useful for the delivery of at least one treatment composition, preferably a cleaning composition and/or a sanitizing composition to a sanitary appliance.

Claims (24)

1. A method for the manufacture of a cageless lavatory dispensing device adapted for the delivery of at least one solid treatment composition, to a sanitary appliance, wherein said cageless lavatory dispensing device comprises a hanger having a hook end adapted to be suspended from a part of a sanitary appliance, and a compressed solid block adapted to be suspended within the interior of the sanitary appliance comprising at least one chemical agent, and wherein said method of manufacture comprises the steps of:

forming a mass comprising at least one or more chemical constituent; and,

extruding the mass into a preform shape wherein the extrudate is at least partially split into the legs of a “V” during the extrusion of the mass into the perform shape;

subsequently inserting a portion of the hanger into the perform shape; and,

compressing the preform shape in a die to provide the final form of the compressed solid block composition of the cageless lavatory dispensing device wherein compressed solid block composition encases only a portion of the hanger wherein the remaining portion of the hanger extends from the compressed solid block composition.

2. A process according to claim 1 wherein:

subsequent to extrusion and prior to insertion of the hanger, the extrudate is cut into preforms.

3. A process according to claim 1 wherein:

the extrudate is compressed to form a compressed solid block such that density of the compressed solid block as at least 1% greater than the density of the density of the extrudate.

4. A process according to claim 3 wherein:

the extrudate is compressed to form a compressed solid block such that density of the compressed solid block as at least 1.5% greater than the density of the density of the extrudate.

5. A process according to claim 1 wherein:

the hanger includes a hook end which extends to a stalk, and a plate depending from the stalk.

6. A process according to claim 1 wherein the sanitary appliance is a toilet bowl.

7. A process according to claim 4 wherein the composition is densified by at least 2%.

8. A method according to claim 1 , wherein the at least one chemical agent is a cleaning composition and/or a sanitizing composition.

9. A method according to claim 1 , wherein the cageless lavatory dispensing device comprises a hanger having a hook end adapted to be suspended from the rim of a toilet bowl.

10. A method according to claim 1 wherein the device further includes an air treatment dispenser.

11. A method according to claim 8 wherein, wherein the compressed solid block composition is immersed, rinsed or washed with water, at least one chemical agent is eluted or dissolved into said water and forms a treatment composition which provides a cleaning and/or sanitizing and/or disinfecting benefit to the toilet or other sanitary appliance being treated with the treatment composition.

12. A method according to claim 1 wherein the device comprises a hanger having a hook end, a stalk depending therefrom and a plate depending from the stalk.

13. A process according to claim 12 wherein the plate end is of a generally flat, planar configuration.

14. A method according to claim 1 wherein the device comprises a hanger having a hook end, a stalk depending therefrom which includes a standoff section and a plate depending from the stalk.

15. A method according to claim 14 wherein the compressed solid block composition enrobes or encases the plate.

16. A method according to claim 1 wherein the compressed solid block composition comprises at least one surfactant.

Assignments (3)
CHANGE OF NAME Recorded Sep 22, 2011
From: RECKITT BENCKISER, INC.
To: RECKITT BENCKISER, INC.
Reel/Frame 026952/0192 →
CHANGE OF NAME Recorded Sep 22, 2011
From: RECKITT BENCKISER, INC.
To: RECKITT BENCKISER LLC
Reel/Frame 026952/0205 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 30, 2007
From: ARORA, NEVIN; KING, CHRISTOPHER; LU, ROBERT ZHONG; NGUYEN, TRI; PHEIFF, DANA; WU, STEVEN
To: RECKITT BENCKISER INC.
Reel/Frame 020189/0367 →