Heatable respiratory hose
First Claim
1. Heatable respiratory or respiration hose made of a transparent or translucent material, the hose having a tubular portion with an outer surface, and a helical ridge or bar on said outer surface of the tubular portion, the ridge or bar having a foot portion with which the ridge or bar emerges radially outwardly from the surface;
- the improvement comprising;
heating conductor means exterior of said hose and said ridge or bar and arranged on and along said foot portion of the ridge and in intimate contact with the surface of the hose said conductor means being specifically arranged on at least one side of the foot portion and attached to the ridge or bar itself and on the surface of the hose so that the conductor means have a consistent spacing from and in relation to the hose and said surface on account of said intimate contact; and
means for electrically connecting the conductor means so as to permit heating current to be fed to the heating conductor.
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Accused Products
Abstract
A respiratory or respiration hose is made of a transparent or translucent material, e.g. a silicon caoutchouc, the hose has a helical, preferably hollow ridge or bar on its outer surface bonded thereto by a silicon based adhesive; heating conductors means are arranged on a foot portion of the ridge, on one or both sides of the foot portion of the ridge and are adhesively bonded to the hose; a return conductor may run through the hollow ridge interior; heating current is fed to the heating conductor which is provided in parallel or serial connection.
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Citations
12 Claims
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1. Heatable respiratory or respiration hose made of a transparent or translucent material, the hose having a tubular portion with an outer surface, and a helical ridge or bar on said outer surface of the tubular portion, the ridge or bar having a foot portion with which the ridge or bar emerges radially outwardly from the surface;
- the improvement comprising;
heating conductor means exterior of said hose and said ridge or bar and arranged on and along said foot portion of the ridge and in intimate contact with the surface of the hose said conductor means being specifically arranged on at least one side of the foot portion and attached to the ridge or bar itself and on the surface of the hose so that the conductor means have a consistent spacing from and in relation to the hose and said surface on account of said intimate contact; and means for electrically connecting the conductor means so as to permit heating current to be fed to the heating conductor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- the improvement comprising;
Specification