Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
192 words
A vaporizer for anaesthetics or narcotics comprising a housing having an interior liquid narcotic reservoir and an evaporation chamber above said reservoir, an inlet into said housing, an outlet passage in said housing spaced from said inlet, a first conduit for evaporation gases extending from said inlet to said evaporation chamber and from said evaporation chamber to said outlet passage, a second bypass conduit extending from said inlet to said outlet passage and having an annular portion, flow control means in said second bypass passage comprising an annular trough-shape member having a bottom wall closing one end of said annular portion, a hollow cylindrical member positioned in said trough-shape member and having a top planar wall, a ring-shape member having a bottom planar wall opposed to said top planar wall of said hollow cylindrical member, and sealing means including an anchor for suspending said annular ring member in said housing and being of a different thermal coefficient of expansion than said housing to permit relative movement of said ring member to vary the gap between said flat bottom surface of said ring member and said planar surface of said hollow cylinder member.
Claim 2
Dependent Claim
192 words
A vaporizer for anaesthetics or narcotics comprising a housing having an interior liquid narcotic reservoir and an evaporation chamber above said reservoir, an inlet into said housing, an outlet passage in said housing spaced from said inlet, a first conduit for evaporation gases extending from said inlet to said evaporation chamber and from said evaporation chamber to said outlet passage, a second bypass conduit extending from said inlet to said outlet passage and having an annular portion, flow control means in said second bypass passage comprising an annular trough-shape member having a bottom wall closing one end of said annular portion, a hollow cylindrical member positioned in said trough-shape member and having a top planar wall, a ring-shape member having a bottom planar wall opposed to said top planar wall of said hollow cylindrical member, and sealing means including an anchor for suspending said annular ring member in said housing and being of a different thermal coefficient of expansion than said housing to permit relative movement of said ring member to vary the gap between said flat bottom surface of said ring member and said planar surface of said hollow cylinder member.
Claim 3
Dependent Claim
38 words
A vaporizer for anaesthetics or narcotics, according to claim 1, wherein said hollow trough-shape member comprises a material of a high thermal coefficient of expansion relative to said hollow cylinder, means connecting the cylinder to said trough-shape member.
Claim 4
Dependent Claim
22 words
A vaporizer for anaesthetics or narcotics, according to claim 1, wherein said hollow cylinder includes a flange portion defining said planar surface.
Claim 5
Dependent Claim
30 words
A vaporizer for anaesthetics or narcotics, according to claim 3, wherein said ring member bottom defines an annular planar surface disposed at right angles to the axis of said housing.
Claim 6
Dependent Claim
28 words
A vaporizer for anaesthetics or narcotics, according to claim 1, wherein said sealing means anchor comprises a screw bolt connected to said housing and to said ring member.
Claim 7
Dependent Claim
26 words
A vaporizer for anaesthetics or narcotics, according to claim 5, wherein said sealing means includes an elastic body disposed between said ring member and said housing.
Claim 8
Dependent Claim
94 words
A vaporizer for anaesthetics or narcotics, according to claim 1, including a conveying body centered over said reservoir, said annular trough-shape member being spaced from said conveying body and defining a flow passage gap therebetween, said first conduit including a vaporizing gas passage through said conveying body to said outlet passage, said housing having a conical portion in said evaporation gas passage, a cone positioned in said conical portion, and a handwheel connected to said cone for raising and lowering it in said conical portion for varying the cross-sectional flow therethrough to said outlet.