Steam device

Patent metadata

Field	Value
Publication number	US-10287725-B2
Application number	US-201515511283-A
Country	US
Kind code	B2
Filing date	Sep 9, 2015
Priority date	Sep 17, 2014
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

The present application relates to a steam device comprising a steam chamber having a steam generating surface onto which liquid water is provided to be evaporated into steam, a fabric treating plate comprising a fabric treating face and at least one steam vent through which steam is expelled onto a fabric to be steamed, an outlet flow section located between the steam generating surface and the fabric treating face wherein the outlet flow section defines an indirect flow path between the steam chamber and the at least one steam vent and a heater for heating the outlet flow section such that liquid water which enters the outlet flow section from the steam chamber is evaporated into steam. The outlet flow section comprises at least one boundary surface with a plurality of recesses for reducing the flow rate of liquid water travelling through the outlet flow section.

First claim

The invention claimed is:

1. A steam device comprising:
a steam chambers
a steam generating plate comprising:
a steam generating surface onto which liquid water is provided to be evaporated into steam;

a fabric treating plate comprising a fabric treating face and at least one steam vent through which steam is expelled onto a fabric;
an outlet flow section located between the steam generating surface and the fabric treating face wherein the fabric treating plate and steam generating plate each form a boundary surface of the outlet flow section and the outlet flow section further comprising a plurality of internal walls on at least one of the boundary surfaces, said internal walls forming an indirect flow path between the steam chamber and the at least one steam vent; and
a heater for heating the outlet flow section such that liquid water which enters the outlet flow section from the steam chamber is evaporated into steam.

2. The steam device according to claim 1 , wherein the internal walls are configured to form said indirect flow path into a labyrinth.

3. The steam device according to claim 2 , wherein the internal walls are configured to form the indirect flow path into a serpentine channel.

4. The steam device according to claim 1 , wherein the indirect flow path (C) comprises at least one baffle configured to change a direction of fluid flowing in the outlet flow section.

5. The steam device according to claim 4 , wherein the at least one baffle extends from the steam generating plate.

6. The steam device according to claim 1 , wherein the internal walls comprise a first portion that extend in a first direction and a second portion that extend in a second direction, opposite to the first direction.

7. The steam device according to claim 1 , wherein the internal walls are wavy.

8. The steam device according to claim 1 , wherein the heater is configured to:
heat the steam generating surface to maintain the steam generating surface and the outlet flow section at a temperature of at least 100 degrees Celsius.

9. The steam device according to claim 1 , wherein the outlet flow section comprises a coating configured to:
promote the evaporation of liquid water into steam in the outlet flow section.

10. The steam device according to claim 9 , wherein the coating is a colloidal steam promoter.

11. The steam device according to claim 1 , wherein the outlet flow section comprises a porous layer configured to:
absorb liquid water in the outlet flow section.

12. The steam device according to claim 1 , wherein at least one boundary surface of the outlet flow section comprises a plurality of protrusions.

13. The steam device according to claim 1 , wherein the height of the outlet flow section, in the direction between the fabric treating face and the steam generating surface, is no greater than 5 mm.

14. A steam device according to claim 1 , wherein the steam device is in the form of a steam iron.

15. The steam device according to claim 13 , wherein the height of the outlet flow section, in the direction between the fabric treating face and the steam generating surface is no greater than 3 mm.

Assignees

• Koninklijke Philips Nv

Inventors

• Tan Boon Teck
• Chua Hee Keng
• Lee Chen-Shiang
• Valiyambath Krishnan Mohankumar

Classifications

• D06F75/18

  the water being fed slowly, e.g. drop by drop, from the reservoir to a steam generator · CPC title

• D06F75/24

  Arrangements of the heating means within the iron; Arrangements for distributing, conducting or storing the heat · CPC title

• D06F75/20 Primary

  Arrangements for discharging the steam to the article being ironed · CPC title

• D06F75/10 Primary

  with means for supplying steam to the article being ironed (D06F75/32 takes precedence) · CPC title