Heating apparatus

Patent metadata

Field	Value
Publication number	US-10317098-B2
Application number	US-201214384639-A
Country	US
Kind code	B2
Filing date	Nov 2, 2012
Priority date	Mar 15, 2012
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

The present technology relates to a tub for a humidifier comprising a container made of a first material, a heating element, and a lining made of a second, preferably biocompatible, material different from the first material, wherein the container comprises a base and a side wall defining a reservoir for a supply of liquid to be evaporated, the heating element is provided on the base of the container, and the lining covers the heating element and a substantial portion of the inner surface of the side wall of the container.

First claim

The invention claimed is:

1. A method of manufacturing a tub for a humidifier comprising:
a) providing a tool for molding a container;
b) positioning a heating element inside said tool; and
c) molding a container made of a first material around said heating element, wherein the container comprises a base and a side wall defining a reservoir for a supply of liquid to be evaporated, wherein the heating element is arranged on an inner surface of the container; and
d) subsequent to molding the container, molding a second material different from the first material over at least the heating element on an inner surface of the container in order to provide a lining,
wherein the heating element is preheated to a predetermined temperature before the step of molding the first material, and
wherein the predetermined temperature is between 50° C. and 200° C.

2. The method of claim 1 , wherein the heating element is arranged on at least the base of the container.

3. The method of claim 1 , wherein the molding of the second material comprises injection-molding.

4. The method of claim 1 , further comprising the step of providing a supporting structure and/or a plug or connector.

5. The method of claim 4 , further comprising the step of molding the second material over a substantial portion of the inner surface of the side wall of the container and/or the supporting structure and/or the plug or connector in order to provide a lining.

6. The method of claim 1 , wherein the second material is elastic.

Assignees

• ResMed Pty Ltd

Inventors

• Bayer Christian
• Eibl Robert
• Burz Johann Sebastian
• Biener Achim
• Lang Bernd Christoph
• Rothfuss Jens
• Nickol Johannes
• Kirchberger Andreas

Classifications

• A61M2205/0216

  Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking · CPC title

• A61M2205/0233

  Conductive materials, e.g. antistatic coatings for spark prevention · CPC title

• A61M16/16 Primary

  Devices to humidify the respiration air {(A61M16/1045 takes precedence)} · CPC title

• A61M2205/3389

  Continuous level detection (A61M2205/3393 takes precedence) · CPC title

• A61M2205/3633

  thermally insulated · CPC title