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US3842888A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for introducing ingredients into a spray drying tower

Assignee: Colgate Palmolive Co
•
Filing: 1973-02-01
•
Granted: 1974-10-22
•
Expires: 1993-02-01
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Abstract

Abstract An apparatus for introducing ingredients into a spray tower for producing adjustable density products having uncrutchable solids comprising a drying body having sides provided with a plurality of holes, spray nozzles connected to a pipe extending through the sides of the drying body for spraying hydrated liquid material into the drying body, and a substantially circular conduit having arms that attach and circumscribe the outside of the drying body with at least one inlet where hot drying gas enters to be effused through the holes in the drying body to flow either countercurrent or concurrently to the hydrated liquid material and dry it to form dry particulate matter. A cylindrical tube extends through the top of the drying body and provides for the introduction of uncrutchable solids. A top connects to the drying body and includes at least one aperture within the drying gas exits. The dry particulate material having uncrutchable solids is recovered through an outlet in the bottom of the body.

Inventors

  • 👤 E Gibbons

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 11:13
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/046; B; B01; B01D; B01D1/00; B01D1/16; B01D1/18; C11D11/00; C11D11/02

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 125 words
A spray tower for producing adjustable density products comprising a drying body having sides provided with a plurality of holes, nozzle means for spraying hydrated liquid material into said body, means for effusing hot drying gas through said holes to countercurrently flow against said hydrated liquid material to dry said liquid material into dry particulate form, said body having a top provided with a mouth wherein said drying gas exits, a bottom provided with an outlet wherefrom said dry particulate material is removed, a cylindrical tube extending through said top and having a discharge opening that is adjustable to any preset height level within said body between said holes and said nozzle means and a feeding means for feeding dry solids into said cylindrical tube.
Claim 2
Dependent Claim 125 words
A spray tower for producing adjustable density products comprising a drying body having sides provided with a plurality of holes, nozzle means for spraying hydrated liquid material into said body, means for effusing hot drying gas through said holes to countercurrently flow against said hydrated liquid material to dry said liquid material into dry particulate form, said body having a top provided with a mouth wherein said drying gas exits, a bottom provided with an outlet wherefrom said dry particulate material is removed, a cylindrical tube extending through said top and having a discharge opening that is adjustable to any preset height level within said body between said holes and said nozzle means and a feeding means for feeding dry solids into said cylindrical tube.
Claim 3
Dependent Claim 34 words
The spray tower of claim 1 wherein said feeding means includes a worm feeder for supplying said solids to said tube and a motor operatively connected to said worm feeder for driving said feeder.
Claim 4
Dependent Claim 27 words
The spray tower of claim 1, wherein said body is cylindrically shaped and said holes are circular with centers essentially equidistant from the axis of said body.
Claim 5
Dependent Claim 49 words
The spray tower of claim 3, wherein said means for effusing hot drying gas through said holes is a substantially channel shaped cofferdam having at least one inlet, said cofferdam surrounding and enclosing said holes, whereby said hot drying gas enters said inlet to be effused through said holes.
Claim 6
Dependent Claim 56 words
The spray tower of claim 1, wherein said means for spraying hydrated liquid material comprises at least one spray nozzle, a pipe extending through the sides of said body and connected to said spray nozzle for conducting said liquid material to said spray nozzle, and said pipe being situated in the upper portion of said body.
Claim 7
Dependent Claim 31 words
The spray tower of claim 5, wherein said top, is essentially an upright truncated cone, and said aperture is circular with a center essentially positioned on said axis of said body.
Claim 8
Dependent Claim 13 words
The spray tower of claim 1, wherein said bottom is an inverted frusto-cone.
Claim 9
Dependent Claim 26 words
The spray tower of claim 7, wherein said outlet of said bottom is substantially circular with a center situated essentially on an axis of said body.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-10-21 1978-04-22 1978-10-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-10-21 1982-04-22 1982-10-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-10-21 1986-04-22 1986-10-22 $7700.00 Window Closed / Lapsed

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