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US3759450A Expired / Lapsed US ⏱️ 0.0 years remaining

Fluid mixing and spraying apparatus

Assignee: GLAS-CRAFT Inc A CORP OF IND
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Filing: 1972-03-16
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Granted: 1973-09-18
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Expires: 1992-03-16
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Abstract

Abstract A fluid mixing and spraying apparatus and method. The apparatus includes a body having an elongated chamber with a diffuser positioned therein having a central passageway with an entrance end and an exit end. The diffuser has an end wall at the exit end of the central passageway. The end wall of the diffuser has a plurality of spaced openings to permit a first fluid supplied to the entrance end of the passageway under pressure to exit through the openings into the elongated chamber as a plurality of streams. An intermediate portion of the diffuser has a peripheral recessed portion which defines a distributing chamber for receiving a second fluid under pressure. A plurality of channels formed in the diffuser extend from the recessed portion to the end wall to permit the second fluid in the distributing chamber to exit from the chamber through the channels into the elongated chamber as a plurality of streams to mix with the first fluid. Baffle means also may be provided in the elongated chamber beyond the point where the two fluids first meet and mix to further facilitate mixing of the two fluids prior to their discharge through a fluid spray tip.

Inventors

  • 👤 C Freeman
  • 👤 M Fram
  • 👤 R Hetherington

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 08:09
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/74; B29B7/7457; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/313; B01F25/3131; B01F25/40; B01F25/42; B01F25/43; B01F25/435; B01F25/45; B01F25/452; B01F25/4521; B05; B05B; B05B7/00; B05B7/02; B05B7/04; B05B7/0416; B29B7/7438; B01F23/00; B01F23/40

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 179 words
A fluid mixing and spraying apparatus comprising a body having a chamber, diffuser means positioned in the chamber and having a passageway with an entrance end and an exit end, a first fluid passageway in the means communicating with the entrance end of the passageway to provide a first fluid under pressure for passage therethrough, an end wall of the passageway having a plurality of spaced openings therein to permit the first fluid to exit therefrom as a plurality of streams into the chamber, a portion on the diffuser defining a distributing chamber, a second fluid passageway in the means communicating with the distributing chamber to provide a second fluid under pressure thereto, a plurality of channels in the diffuser extending from the distributing chamber to the chamber and to permit the second fluid in the distributing chamber to exit therefrom through the channels into the chamber as a plurality of streams and mix with the first fluid, and baffle means positioned between said end wall and said fluid spray tip to further mix said fluids prior to spraying.
Claim 2
Dependent Claim 179 words
A fluid mixing and spraying apparatus comprising a body having a chamber, diffuser means positioned in the chamber and having a passageway with an entrance end and an exit end, a first fluid passageway in the means communicating with the entrance end of the passageway to provide a first fluid under pressure for passage therethrough, an end wall of the passageway having a plurality of spaced openings therein to permit the first fluid to exit therefrom as a plurality of streams into the chamber, a portion on the diffuser defining a distributing chamber, a second fluid passageway in the means communicating with the distributing chamber to provide a second fluid under pressure thereto, a plurality of channels in the diffuser extending from the distributing chamber to the chamber and to permit the second fluid in the distributing chamber to exit therefrom through the channels into the chamber as a plurality of streams and mix with the first fluid, and baffle means positioned between said end wall and said fluid spray tip to further mix said fluids prior to spraying.
Claim 3
Dependent Claim 56 words
A fluid mixing and spraying apparatus as defined in claim 1, wherein the end wall is in the form of a conical tip at the exit end of the passageway and the openings are formed perpendicular to the face of the tip so that the first fluid streams exit therefrom toward the periphery of the chamber.
Claim 4
Dependent Claim 42 words
The fluid mixing device as defined in claim 1, wherein the plurality of channels in the diffuser are positioned so that the plurality of streams of the second fluid exit from the diffuser substantially parallel to the longitudinal axis of the chamber.
Claim 5
Dependent Claim 36 words
A fluid mixing device as defined in claim 3 wherein each of the openings from which the first fluid is projected is aligned with the means for dividing the second fluid into a plurality of streams.

References Cited (Backward Citations)

US1331376A Cited
US2489031A Cited
US2933259A Cited
US2930532A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-09-17 1977-03-19 1977-09-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-09-17 1981-03-19 1981-09-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-09-17 1985-03-19 1985-09-18 $7700.00 Window Closed / Lapsed

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