EP0440155A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Flow-velocity sensor probe
Assignee: Terumo Corp
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Filing: 1991-01-29
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Granted: —
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Expires: 2011-01-29
Abstract
Abstract A flow-velocity sensor probe includes thermistor for generating heat which is placed in a fluid, and a waterproof resin and a metal piece for easily radiating the heat generated by the thermistor. The flow velocity of the fluid is measured continuously from a change of temperature in the thermistor,and the thermistor is provided in close proximity to the metal piece for transmitting the heat to the fluid.
Inventors
- 👤 Hiromasa Kohno
- 👤 Kouji Tsuchida
- 👤 Yoshio Ishitsu
- 👤 Masaru Kurio
- 👤 Shigekazu Sekii
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 06:59
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/026; A61B5/0275; A61B5/028; G; G01; G01F; G01F1/00; G01F1/68; G01F1/684; G01F1/688; G01F1/69
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
90 words
A flow-velocity sensor probe comprising: heat generating means placed in a fluid; temperature detecting means for detecting the temperature of said heat generating means; and thermally conductive heat radiating means for radiating heat, which is generated by said heat generating means, by transmitting the heat to the fluid; wherein flow velocity of the fluid is measured continuously from a change in the temperature of said heat generating means detected by said temperature detecting means; said thermally conductive heat radiating means being provided in close proximity to said heat generating means.
Claim 2
Dependent Claim
22 words
The flow-velocity sensor probe according to claim 1, wherein said heat generating means and said temperature detecting means comprise an individual resistor.
Claim 3
Dependent Claim
25 words
The flow-velocity sensor probe according to claim 1, wherein said temperature detecting means is provided so as to be surrounded by said heat generating means.
Claim 4
Dependent Claim
34 words
The flow-velocity sensor probe according to claim 1, wherein said thermally conductive heat radiating means is a metal ring so as to transmit the heat generated by said heat generating means to the fluid.
Claim 5
Dependent Claim
18 words
The flow-velocity sensor probe according to claim 1, wherein said thermally conductive heat radiating means comprises a metal.
Claim 6
Dependent Claim
54 words
The flow-velocity sensor probe according to claim 1, wherein said thermally conductive heat radiating means comprises: a resin layer, which exhibits a waterproof property and an electrical insulating property, arranged so as to be in contact with said heat generating means; and a metal arranged so as to be in contact with the fluid.
Claim 7
Dependent Claim
54 words
The flow-velocity sensor probe according to claim 2, wherein said thermally conductive heat radiating means comprises: a resin layer, which exhibits a waterproof property and an electrical insulating property, arranged so as to be in contact with said heat generating means; and a metal arranged so as to be in contact with the fluid.
Claim 8
Dependent Claim
29 words
The flow-velocity sensor probe according to claim 6, wherein a thermally conductive material exhibiting a high thermal conductivity and a high volume resistivity is mixed in said resin layer.
Claim 9
Dependent Claim
29 words
The flow-velocity sensor probe according to claim 7, wherein a thermally conductive material exhibiting a high thermal conductivity and a high volume resistivity is mixed in said resin layer.
Claim 10
Dependent Claim
15 words
The flow-velocity sensor probe according to claim 5, wherein gold is used as said metal.
Claim 11
Dependent Claim
15 words
The flow-velocity sensor probe according to claim 6, wherein gold is used as said metal.
Claim 12
Dependent Claim
31 words
The flow-velocity sensor probe according to claim 8, wherein said thermally conductive material comprises at least one member selecting from the group consisting of boron nitride, silicon nitride, alumina and diamond.
Claim 13
Dependent Claim
31 words
The flow-velocity sensor probe according to claim 9, wherein said thermally conductive material comprises at least one member selecting from the group consisting of boron nitride, silicon nitride, alumina and diamond.
References Cited (Backward Citations)
No citation records indexed.
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