IP Library › Granted Patent US 8,747,664
Granted Patent B2
US 8,747,664 · App. 12/514,839 · Granted Jun 10, 2014

Water filtration and sterilisation device

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Quick Facts
Patent No.
US 8,747,664
App. No.
12/514,839
Granted
Jun 10, 2014
Kind
B2
Abstract

The present invention provides a water filtration and sterilization device comprising a container having an inlet conduit and an outlet conduit, a closure valve at said inlet conduit, a filter means upstream of said inlet conduit, a flow prevention means in said outlet conduit and an ultra violet radiation source within said container. The valve is adapted to be opened for a first time period to admit water into the container via the filter means. The ultra violet radiation source is operable for a second time period to sterilize water in said chamber. The first time period is shorter than said second time period. The flow prevention means is operable to deliver sterilized water on demand from the container.

Claims (24)

1. A water filtration and sterilisation device, comprising:

a casing comprising a first container and a second container within the casing, the first container and the second container each being configured to contain water therein, the first container comprising a base having a recess, the recess comprising a first outlet conduit in fluid communication between the first container and the second container, the second container having an outlet and a second outlet conduit;

a closure valve coupled to said first outlet conduit;

a filter upstream of said first outlet conduit;

a flow prevention means coupled between said second container outlet and said second outlet conduit;

an ultra violet radiation source within said second container; and

a controller, wherein the controller is configured to:

open the closure valve for a first time period to admit water into the second container via the filter;

operate the ultra violet radiation source for a second time period to sterilise water in the second container; and

operate said flow prevention means to deliver sterilised water on demand from the second container; and

wherein said first time period is shorter than said second time period.

2. A device as claimed in claim 1 wherein the controller is further configured to simultaneously open the closure valve for a first time period and operate the ultra violet radiation source for a second time period.

3. A device as claimed in claim 1 wherein the flow prevention means comprises a pump.

4. A device as claimed in claim 3 wherein the controller is further configured to operate the pump to draw residual water present in the second outlet conduit from the second outlet conduit to the second container.

5. A device as claimed in claim 4 wherein the controller is further configured to periodically operate the pump to draw residual water from the second outlet conduit to the second container.

6. A device as claimed in claim 1 wherein the controller is further configured to periodically operate the ultra violet radiation source to sterilise water present within the second container.

7. A device as claimed in claim 1 wherein the first container is positioned above the second container.

8. A device as claimed in claim 1 wherein the first container is at least partially received within the second container.

9. A device as claimed in claim 1 wherein the filter is mounted within the recess of the first container.

10. A device as claimed in claim 1 wherein the first container is arranged to supply water to the second container by gravity.

11. A device as claimed in claim 1 wherein the filter comprises a replaceable casing containing filter media.

12. A device as claimed in claim 1 wherein the second outlet conduit comprises a flexible plastics tube.

13. A device as claimed in claim 1 wherein the closure valve is electrically operable and is biased to a closed position.

14. A device as claimed in claim 1 and including a removable jug into which said second outlet conduit opens.

Assignments (9)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 26, 2018
From: SPECTRUM BRANDS INC.
To: APPLICA WATER PRODUCTS LLC
Reel/Frame 046463/0199 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 24, 2018
From: SPECTRUM BRANDS, INC.
To: APPLICA WATER PRODUCTS, LLC
Reel/Frame 046443/0678 →
MERGER AND CHANGE OF NAME Recorded Jul 18, 2018
From: APPLICA CONSUMER PRODUCTS, INC.; SPECTRUM BRANDS, INC.
To: SPECTRUM BRANDS, INC.
Reel/Frame 046386/0399 →
NOTICE OF SUCCESSOR AGENT AND ASSIGNMENT OF SECURITY INTEREST (INTELLECTUAL PROPERTY) REEL/FRAME 036131/0272 Recorded Jun 5, 2018
From: DEUTSCHE BANK AG NEW YORK BRANCH
To: ROYAL BANK OF CANADA
Reel/Frame 046301/0425 →
SECURITY INTEREST Recorded Jul 20, 2015
From: SPECTRUM BRANDS, INC.
To: DEUTSCHE BANK AG NEW YORK BRANCH, AS COLLATERAL AGENT
Reel/Frame 036131/0272 →
RELEASE OF SECURITY INTEREST Recorded Jul 14, 2015
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL TRUSTEE
To: APPLICA CONSUMER PRODUCTS, INC.; APPLICA CONSUMER PRODUCTS, INC., A CORP. OF FLORIDA; KWIKSET CORPORATION; LIQUID HOLDING COMPANY, INC.; NATIONAL MANUFACTURING CO.; PRICE PFISTER, INC.; ROV HOLDING, INC., A CORP. OF DELAWARE; ROVCAL, INC.; ROVCAL, INC., A CORP. OF CALIFORNIA; RUSSELL HOBBS, INC., A CORP. OF DELAWARE; SALIX ANIMAL HEALTH, LLC; SEED RESOURCES, L.L.C.; SPECTRUM BRANDS, INC.; SPECTRUM BRANDS, INC. AS SUCCESSOR IN INTEREST TO ROVCAL, INC.; SPECTRUM BRANDS, INC., A CORP. OF DELAWARE; TELL MANUFACTURING, INC.; TETRA HOLDING (US), INC., A CORP. OF DELAWARE; TETRA HOLDINGS (US), INC.; UNITED INDUSTRIES CORPORATION; UNITED INDUSTRIES CORPORATION AS SUCCESSOR IN INTEREST TO LIQUID HOLDING COMPANY, INC.; UNITED PET GROUP, INC.; UNITED PET GROUP, INC., A CORP. OF DELAWARE
Reel/Frame 036102/0001 →
RELEASE OF SECURITY INTEREST Recorded Jul 2, 2015
From: BANK OF AMERICA, N.A., AS AGENT
To: RUSSELL HOBBS, INC.; APPLICA CONSUMER PRODUCTS, INC.; TOASTMASTER INC.; SPECTRUM BRANDS, INC.; ROVCAL, INC.; TETRA HOLDING (US), INC.; UNITED PET GROUP, INC.; SEED RESOURCES, L.L.C.; PRICE PFISTER, INC.; KWIKSET CORPORATION; NATIONAL MANUFACTURING CO.; LIQUID HOLDING COMPANY, INC.; TELL MANUFACTURING, INC.; SALIX ANIMAL HEALTH, LLC
Reel/Frame 036052/0845 →
PATENT SECURITY AGREEMENT Recorded Dec 28, 2012
From: SPECTRUM BRANDS, INC.; UNITED INDUSTRIES CORPORATION; UNITED PET GROUP, INC.; APPLICA CONSUMER PRODUCTS, INC.; ROVCAL, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 029536/0634 →
SECURITY AGREEMENT Recorded Aug 11, 2010
From: RUSSELL HOBBS, INC.; APPLICA CONSUMER PRODUCTS, INC.; TOASTMASTER INC.; SPECTRUM BRANDS, INC.; ROVCAL, INC.; UNITED PET GROUP, INC.; UNITED INDUSTRIES CORPORATION
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 024823/0177 →