Drip proof outlet diffuser for a faucet

• US 10,443,752 B2
• Filed: 05/11/2017
• Issued: 10/15/2019
• Est. Priority Date: 05/20/2016
• Status: Active Grant

• Current Assignee: Shanghai Kohler Electronics Ltd.
• Original Assignee: Shanghai Kohler Electronics Ltd.
• Inventors: Guo, Jundong
• Primary Examiner(s): Nichols, P. Macade
• Application Number:
  US15/592,728
• Publication Number:
  US 20170335985A1
• Time in Patent Office: Days
• Field of Search: 137844-855, 13751215
• CPC Class Codes: F16K 15/147 the closure elements having specially formed slits or being of an elongated easily collapsible form
• CPC Class Codes: F16K 23/00 Valves for preventing drip from nozzles

Abstract

An anti-drip device, such as for use in a faucet or water supply line, that includes a support having at least one water outlet and an elastic lip member disposed inside each water outlet. Each elastic lip member has an open state and a closed state inside the associated water outlet, and each elastic lip member is capable of switching between the open state and the closed state. When the elastic lip member is in the open state, the water outlet is open; and when the elastic lip member is in the closed state, the water outlet is closed.

Claims

1. An anti-drip device for installation inside a faucet or a water supply pipe, comprising:

a support plate having a plurality of water outlets fluidly connecting an inlet and an outlet of the faucet or the water supply pipe, wherein each water outlet is spaced apart from each adjacent water outlet; and

a gasket located adjacent the support plate and having a plurality of elastic lip members with at least one elastic lip member disposed inside each water outlet of the support plate;

wherein each elastic lip member has an open state, in which the associated water outlet is open, and a closed state, in which the associated water outlet is closed; and

wherein each elastic lip member is capable of switching between the open state and the closed state.

2. The anti-drip device of claim 1, wherein each elastic lip member comprises a single elastic lip that is disposed inside the associated water outlet;

wherein in the open state of the elastic lip member, at least a part of the associated elastic lip is separated from the associated water outlet; and

wherein in the closed state of the elastic lip member, the associated elastic lip seals the associated water outlet.

3. The anti-drip device of claim 1, wherein each elastic lip member comprises two elastic lips that are disposed opposing each other inside the water outlet;

wherein in the open state of the elastic lip member, the associated two elastic lips are separated from each other; and

wherein in the closed state of the elastic lip member, the two elastic lips contact one another to seal the associated water outlet.

4. The anti-drip device of claim 3, wherein each of the two elastic lips comprises a contact surface that contacts the contact surface of the other elastic lip in the closed state of the elastic lip member, and each contact surface is arc-shaped.

5. The anti-drip device of claim 4, wherein each elastic lip is arc-shaped from a fixed end to a free end.

6. The anti-drip device of claim 5, wherein each water outlet comprises an inflow side and an outflow side, and each arc-shaped elastic lip extends from the fixed end, which is proximate the inflow side, toward the free end, which is proximate the outflow side, in a bending manner.

7. A faucet comprising the anti-drip device of claim 6, a faucet body, and a water supply pipe;

wherein the anti-drip device is installed inside the water supply pipe; and

wherein in the closed state of the elastic lip member, the water supply pipe is completely closed to prevent water flow to a water outlet of the faucet body.

8. A faucet comprising the anti-drip device of claim 6, a faucet body, and a water supply pipe inside the faucet body;

wherein the anti-drip device is installed inside the faucet body and is positioned between a water outlet of the faucet body and a water outlet of the water supply pipe; and

wherein in the closed state of the elastic lip member, the water supply pipe is completely closed to prevent water flow to the water outlet of the faucet body.

9. A faucet comprising the anti-drip device of claim 6, a faucet body, and a water supply pipe inside the faucet body;

wherein the anti-drip device is disposed inside the water supply pipe and the faucet body and is positioned between a water outlet of the faucet body and a water outlet of the water supply pipe; and

wherein each elastic lip member is in the closed state, the water supply pipe is completely closed to prevent water flow to the water outlet of the faucet body.

10. An anti-drip device for installation inside a faucet or a water supply pipe, comprising:

a support having at least one water outlet; and

an elastic lip member disposed inside each water outlet, wherein each elastic lip member has an open state, in which the associated water outlet is open, and a closed state, in which the associated water outlet is closed, and each elastic lip member is capable of switching between the open state and the closed state

wherein a surface of the support is covered with a layer of gasket, and each elastic lip member is disposed on the layer of gasket inside the associated water outlet.

11. The anti-drip device of claim 10, wherein each elastic lip member is integrally formed with the layer of gasket.

12. A faucet, comprising:

a body having an outlet;

a water supply line located inside the body and having an outlet; and

an anti-drip device inside the body between the outlet of the water supply line and the outlet of the body, the anti-drip device comprising;

a support plate having one or more openings therein fluidly connecting the outlet of the body and the outlet of the water supply line; and

a gasket disposed on the support plate with an elastic lip member associated with each opening in the support plate;

wherein each elastic lip member is movable between an open state, in which water is able to flow from the outlet of the water supply line to the outlet of the body through the associated opening, and a closed state, in which the elastic lip member seals the associated opening to prevent water from flowing from the outlet of the water supply line to the outlet of the body.

13. The faucet of claim 12, wherein the support plate has a plurality of elongated openings fluidly connecting the outlet of the body and the outlet of the water supply line.

14. The faucet of claim 13, wherein the plurality of elongated openings are arranged side by side and in parallel to one another with each pair of adjacent openings separated by a cross member of the support plate.

15. The faucet of claim 14, wherein the gasket is disposed on each cross member with an elastic lip member extending from each side of two opposing sides of two adjacent cross members into the associated opening between the two adjacent cross members.

16. The faucet of claim 15, wherein the support plate comprises a non-elastic material and each elastic lip member comprises an arc shaped body extending from a first end, which is fixed to a wall of the gasket coupled to the associated cross member, to a second end, which is free to move relative to the first end between the open and closed states.

17. The faucet of claim 16, wherein the support plate has an inflow side, which is fluidly connected with the outlet of the water supply line, and an outflow side, which is fluidly connected with the outlet of the body of the faucet, and wherein each elastic lip member extends away from the inflow side toward the outflow side moving along the arc shaped body from the first end toward the second end.

18. The faucet of claim 12, wherein the gasket comprises two elastic lip members associated with each opening in the support plate, the first of the two elastic lip members extends from a first side of the support plate defining the opening from a first end fixed to the first side to a second end freely movable, and the second of the two elastic lip members extends from a second side of the support plate defining the opening from a first end fixed to the second side to a second end freely movable.

19. The faucet of claim 18, wherein the first elastic lip member includes a first contact surface and the second elastic lip member includes a second contact surface, the first and second contact surfaces are separated in the open state, and the first and second contact surfaces are in contact in the closed state.

20. The faucet of claim 19, wherein the first side of the support plate opposes the second side of the support plate, and the support plate comprises a non-elastic material.