Forehead Pad for a Breathing Mask and Method for Making the Same
First Claim
Patent Images
1. A forehead pad for a breathing mask, comprising:
- a substantially dimensionally stable first wall element; and
an elastomer second wall element coupled to the first wall element, the second wall element having a contact zone adapted to contact a surface of a user in use,wherein the first and second wall elements define a filling-material-receiving chamber adapted to receive a filling material.
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Accused Products
Abstract
A forehead pad for a breathing mask includes a substantially dimensionally stable first wall element and an elastomer second wall element coupled to the first wall element. The second wall element has a contact zone adapted to contact a surface of a user in use. The first and second wall elements define a filling-material-receiving chamber adapted to receive a filling material.
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Citations
22 Claims
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1. A forehead pad for a breathing mask, comprising:
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a substantially dimensionally stable first wall element; and an elastomer second wall element coupled to the first wall element, the second wall element having a contact zone adapted to contact a surface of a user in use, wherein the first and second wall elements define a filling-material-receiving chamber adapted to receive a filling material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 19)
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13. A breathing mask for administering a breathable gas, at a pressure level that at least in one phase is above ambient pressure, comprising:
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a structure including a contact face adapted to contact a face surface portion on a user'"'"'s face, the structure being formed by an elastomer wall and a counterpart surface structure, the elastomer wall and the counterpart surface structure defining a filling-material-receiving chamber that extends therebetween, and the elastomer wall is initially constructed as a wall that is formed integrally onto the counterpart surface structure and subsequently lifted from the counterpart surface structure. - View Dependent Claims (14, 15)
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16. A method for forming a forehead pad, comprising:
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providing a substantially dimensionally stable first wall element; molding an elastomer second wall element onto the substantially dimensionally stable first wall element; and introducing a filling material into a chamber defined between the first and second wall elements such that the second wall element detaches from the first wall element in regions that require detachment but remains attached to the first wall element in a defined adhesion bonding zone. - View Dependent Claims (17, 18)
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20. A method for forming a forehead pad, comprising:
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forming a first mold chamber with first and second tool segments to mold a substantially dimensionally stable first wall element; after the first wall element has hardened, removing the second tool segment from the first tool segment to expose a portion of the first wall element; treating the exposed portion of the first wall element to create an adhesion-bonding zone; forming a second mold chamber with the first tool segment and a third tool segment to mold an elastomer second wall element onto the substantially dimensionally stable first wall element; after the second wall element has hardened, removing the third tool segment from the first tool segment to expose the second wall element; and introducing a filling material into a chamber defined between the first and second wall elements such that the second wall element detaches from the first wall element in regions that require detachment but remains attached to the first wall element in the adhesion bonding zone. - View Dependent Claims (21)
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22. A multi-part molding tool for forming a forehead pad including a first wall element and a second wall element, comprising:
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a first tool segment; a second tool segment adapted to be positioned with respect to the first tool segment to form a first mold chamber to mold the first wall element; and a third tool segment adapted to be positioned with respect to the first tool segment after the second wall element is removed following molding of the first wall element, the third tool segment and the first tool segment adapted to form a second mold chamber to mold the second wall element onto the first wall element.
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Specification