Pumping device

• US 6,612,819 B1
• Filed: 08/16/2001
• Issued: 09/02/2003
• Est. Priority Date: 02/19/1999
• Status: Expired due to Term

• Current Assignee: Braun GmbH (The Procter & Gamble Company)
• Original Assignee: Braun GmbH (The Procter & Gamble Company)
• Inventors: Peter, Andreas, Furst, Stefan, Haczek, Werner
• Primary Examiner(s): Walberg, Teresa
• Assistant Examiner(s): FASTOVSKY, LEONID M
• Application Number:
  US09/931,114
• Time in Patent Office: 747 Days
• Field of Search: 417/53, 417/479, 417/571, 606/172, 30/41, 117/104, 128/66
• US Class Current: 417/479
• CPC Class Codes: A45D 2026/009 with additional lotion applicator, e.g. interchangeable
• CPC Class Codes: B26B 19/40 Lubricating

Abstract

A pumping device for drawing in and delivering a liquid to a liquid dispensing device of a hair removing apparatus the pumping device includes a pump inlet and a pump outlet and a pumping element. The pumping device is formed by a first and a second housing part each having integrally formed therein a first and a second flow channel. The pumping device includes a membrane member disposed between the first and the second housing part the membrane member includes a pumping element and at least one valve element. The pump inlet is adapted to be coupled to a liquid dispensing device and the pump outlet to a liquid container.

Claims

1. A pumping device for drawing in and delivering a liquid to a liquid dispensing device of a hair removing apparatus the pumping device comprising a pump inlet, a pump outlet, and a pumping element, wherein said pumping device is formed by a first and a second housing part each having a valve chamber, the second housing part having integrally formed therein a first and a second flow channel, the pumping device having a membrane member disposed between the first and the second housing part, the membrane member including a pumping element and at least one valve element, and wherein the pump inlet is adapted to be coupled to the liquid dispensing device and the pump outlet to a liquid container.

2. The pumping device of claim 1, wherein the pumping device is provided outside the liquid container.

3. The pumping device of claim 1, wherein the pumping device is provided inside the liquid container.

4. The pumping device of claim 1, wherein one wall of the liquid container is constructed as the first housing part of the pumping device.

5. The pumping device of claim 1, wherein the membrane member is of elastic construction.

6. The pumping device of claim 1, wherein the valve element and the pumping element are of elastic construction and provided as part of the membrane member.

7. The pumping device of claim 1, wherein a flow path leading from the pump inlet to the pump outlet is formed by a pump chamber and the valve chamber of the first housing part as well as the valve chamber of the second housing part.

8. The pumping device of claim 1, wherein the pumping device with the liquid container is arranged to be replaceable.

9. The pumping device of claim 1, wherein the pumping device is designed to draw in and deliver at least one of a gaseous and a liquid medium and to build up a delivery pressure for the liquid held in the liquid container.

10. A hair removing apparatus comprising:

a housing;

a liquid dispenser connected to the housing; and

a pumping device for delivering a liquid to the liquid dispenser, the pumping device comprising a first housing part, and a membrane between the first housing part and a second housing part, the membrane including a valve and a flexible diaphragm, at least one of the first and second housing parts defining an aperture exposing the flexible diaphragm;

wherein the pumping device is coupled to a liquid container arranged in or on the housing.

11. The hair removing apparatus of claim 10, wherein the aperture provides a drive element access to the flexible diaphragm for actuation of the flexible diaphragm.

12. The hair removing apparatus of claim 10, wherein the first and second housing parts each include a valve chamber.

13. The hair removing apparatus of claim 10 further including a pump inlet connected to the liquid dispenser.

14. The hair removing apparatus of claim 10 further including a pump outlet connected to the liquid container.

15. The hair removing apparatus of claim 10, wherein the pumping device is provided outside the liquid container.

16. The hair removing apparatus of claim 10, wherein the pumping device is provided inside the liquid container.

17. The hair removing apparatus of claim 10, wherein one wall of the liquid container is constructed as the first housing part of the pumping device.

18. The hair removing apparatus of claim 10, wherein the pumping device with the liquid container is arranged to be replaceable.

19. The hair removing apparatus of claim 10, wherein the pumping device is designed to draw in and deliver at least one of a gaseous and a liquid medium and to build up a delivery pressure for the liquid held in the liquid container.

20. The hair removing apparatus of claim 10, wherein at least one of the first and second housing parts include first and second flow channels.

21. The pumping device of claim 10, wherein the membrane is of elastic construction.