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US4046158A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for diluting gas

Assignee: STANDARD Tech Inc
•
Filing: 1976-08-27
•
Granted: 1977-09-06
•
Expires: 1996-08-27
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Abstract

Abstract An apparatus for diluting gas. The apparatus has a primary passage having at opposite ends an inlet for component gas and an inlet for a diluent gas, a secondary passage for collecting the mixture of the component gas and the diluent gas, and a plurality of gas pressure reducing tubes each having the same structure for reducing the pressure of gas flowing therethrough by the same amount and which are connected in parallel between the primary passage and the secondary passage. An exhaust outlet has a changeover device connected thereto and a plurality of exhaust passages each has one end connected with the change-over device, one exhaust passage having the other end connected to the primary passage between one inlet and the next adjacent pressure reducing tube, another exhaust passage having the other end connected to the primary passage between the other inlet and the next adjacent pressure reducing tube, and the remaining exhaust passages having their other ends connected to the primary passage between respective pairs of pressure reducing tubes. A pressure control device is connected to the secondary passage for making the pressure of the mixed gas in the secondary passage a definite pressure, and a pressure difference control device is connected between the primary and secondary passages for making the pressure difference between the primary passage and the secondary passage a definite constant value.

Inventors

  • 👤 Osamu Hayashi
  • 👤 Takahumi Inagaki
  • 👤 Yoshio Yanagita

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 01:07
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/38; G01N33/00; G01N33/0004; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/0352; Y10T137/2496; Y10T137/2499; Y10T137/8593; Y10T137/87249; Y10T137/87265; Y10T137/87281; Y10T137/87571; Y10T137/87676; Y10T137/87684

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 226 words
An apparatus for diluting gas comprising a primary passage having at opposite ends an inlet for a component gas and an inlet for a diluent gas, a secondary passage for collecting the mixture of the component gas and the diluent gas, a plurality of gas pressure reducing tubes each having the same structure for reducing the pressure of gas flowing therethrough by the same amount and which are connected in parallel between said primary passage and said secondary passage, an exhaust outlet, a changeover device connected to said exhaust outlet, a plurality of exhaust passages each having one end connected with said change-over device, one exhaust passage having the other end connected to said primary passage between one inlet and the next adjacent pressure reducing tube, another exhaust passage having the other end connected to said primary passage between the other inlet and the next adjacent pressure reducing tube, and the remaining exhaust passages having their other ends connected to said primary passage between respective pairs of pressure reducing tubes, a pressure control device connected to said secondary passage for making the pressure of the mixed gas in the said secondary passage a definite pressure, and a pressure difference control device connected between said primary and secondary passages for making the pressure difference between the said primary passage and the secondary passage a definite constant value.
Claim 2
Independent Claim 226 words
An apparatus for diluting gas comprising a primary passage having at opposite ends an inlet for a component gas and an inlet for a diluent gas, a secondary passage for collecting the mixture of the component gas and the diluent gas, a plurality of gas pressure reducing tubes each having the same structure for reducing the pressure of gas flowing therethrough by the same amount and which are connected in parallel between said primary passage and said secondary passage, an exhaust outlet, a changeover device connected to said exhaust outlet, a plurality of exhaust passages each having one end connected with said change-over device, one exhaust passage having the other end connected to said primary passage between one inlet and the next adjacent pressure reducing tube, another exhaust passage having the other end connected to said primary passage between the other inlet and the next adjacent pressure reducing tube, and the remaining exhaust passages having their other ends connected to said primary passage between respective pairs of pressure reducing tubes, a pressure control device connected to said secondary passage for making the pressure of the mixed gas in the said secondary passage a definite pressure, and a pressure difference control device connected between said primary and secondary passages for making the pressure difference between the said primary passage and the secondary passage a definite constant value.
Claim 3
Dependent Claim 17 words
An apparatus as claimed in claim 1 in which said pressure reducing tubes are equal size capillaries.
Claim 4
Dependent Claim 22 words
An apparatus as claimed in claim 1 in which a capillary tube is provided between said changeover device and said exhaust outlet.
Claim 5
Dependent Claim 27 words
An apparatus as claimed in claim 1 in which a capillary tube is provided in each exhaust passage, said capillary tubes all being the same inner diameter.

References Cited (Backward Citations)

US3464434A Cited
US3417779A Cited
US3886971A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-09-05 1981-03-07 1981-09-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-09-05 1985-03-07 1985-09-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-09-05 1989-03-07 1989-09-06 $7700.00 Window Closed / Lapsed

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