Faucet-mounted water treatment device
First Claim
Patent Images
1. A faucet-mounted water treatment device comprising:
- a mounting member, a replaceable filter cartridge and an arrangement;
wherein said mounting member is for mounting the water treatment device on a household faucet;
wherein said replaceable filter cartridge is in fluid communication with said mounting member;
wherein said arrangement comprisestotalizing means for adding up the volume of water that has flowed through said filter cartridge, andmeans, cooperating with said flow totalizing means, for indicating when said replaceable filter cartridge has reached the end of its useful life, wherein said indicating means is retained within said arrangement and is not replaced upon replacement of said replaceable filter cartridge.
3 Assignments
0 Petitions
Accused Products
Abstract
A faucet-mounted water treatment device including a flow totalizer and an end-of-life indicator cooperating with the totalizer to tell the user when it is necessary to replace the filter cartridge. End-of-life indication is provided by a valve which stops flow after a predetermined volume has been filtered and by a rotating screen which shows the amount of useful life remaining in the filter cartridge.
-
Citations
37 Claims
-
1. A faucet-mounted water treatment device comprising:
-
a mounting member, a replaceable filter cartridge and an arrangement; wherein said mounting member is for mounting the water treatment device on a household faucet; wherein said replaceable filter cartridge is in fluid communication with said mounting member; wherein said arrangement comprises totalizing means for adding up the volume of water that has flowed through said filter cartridge, and means, cooperating with said flow totalizing means, for indicating when said replaceable filter cartridge has reached the end of its useful life, wherein said indicating means is retained within said arrangement and is not replaced upon replacement of said replaceable filter cartridge. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A faucet-mounted water treatment device comprising:
-
a mounting member, a replaceable filter cartridge and an arrangement; wherein said mounting member is for mounting the water treatment device on a household faucet; wherein said replaceable filter cartridge is in fluid communication with said mounting member; wherein said arrangement comprises totalizing means for adding up the volume of water that has flowed through said filter cartridge, and visual means, cooperating with said flow totalizing means, for visually indicating when said replaceable filter cartridge has reached the end of its useful life, wherein said visual means is retained within said arrangement and is not replaced upon replacement of said replaceable filter cartridge. - View Dependent Claims (9, 10)
-
-
11. A faucet-mounted water treatment device comprising:
-
a mounting member, a replaceable filter cartridge and an arrangement; wherein said mounting member is for mounting the water treatment device on a household faucet; wherein said replaceable filter cartridge is in fluid communication with said mounting member; wherein said arrangement comprises a flow totalizer which adds up the volume of water that has been treated by said filter cartridge, and a visual indicator, cooperating with said flow totalizer, to visually indicate when said replaceable filter cartridge has reached the end of its useful life, wherein said visual indicator is retained within said arrangement and is not replaced upon replacement of said replaceable filter cartridge. - View Dependent Claims (12, 13, 14, 24, 25, 26, 27, 28, 29, 30, 31)
-
-
15. A faucet-mounted water treatment device comprising:
-
a mounting member, a replaceable filter cartridge and an arrangement; wherein said mounting member is for mounting the water treatment device on a household faucet; wherein said replaceable filter cartridge is in fluid communication with said mounting member; wherein said arrangement comprises a flow totalizer which adds up the volume of water that has been treated by said filter cartridge, and an end-of-life indicator, cooperating with said flow totalizer, to indicate when said replaceable filter cartridge has reached the end of its useful life, wherein said end-of-life indicator is retained within said arrangement and is not replaced upon replacement of said replaceable filter cartridge. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 32, 33, 34, 35)
-
-
36. A faucet-mounted water treatment device, comprising:
-
(a) a member constructed and arranged to mount the water treatment device on a household faucet; (b) a replaceable filter cartridge in fluid communication with said mounting member; (c) a flow totalizer which adds up the volume of water that has been treated by said filter cartridge; and (d) a visual indicator, cooperating with said flow totalizer, to provide a visual indication of the useful life remaining in said replaceable filter cartridge before and after said filter cartridge has reached the end of its useful life.
-
-
37. A faucet-mounted water treatment device, comprising:
-
(a) a member constructed and arranged to mount the water treatment device on a household faucet; (b) a replaceable filter cartridge in fluid communication with said mounting member; (c) a flow totalizer which adds up the volume of water that has been treated by said filter cartridge; (d) an end-of-life indicator, cooperating with said flow totalizer, to indicate when said filter cartridge has reached the end of its useful life; and (e) a flow totalizer and indicator reset device constructed and arranged to automatically reset said totalizer and indicator upon replacement of said replaceable filter cartridge.
-
Specification