US4221332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary atomizer with stacked cones
Assignee: MICRON CORPORATON A CORP OF TEXAS
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Filing: 1978-09-14
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Granted: 1980-09-09
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Expires: 1998-09-14
Abstract
Abstract A rotary atomizer suitable for spraying crops with liquid comprising a stack of hollow truncated cones with internal grooves spaced apart by ribs mating with some of the grooves and held together on a central, stationary spindle by thrust bearings at either end. The central spindle may be hollow with holes from the interior to the exterior for feeding liquid to the cones.
Inventors
- 👤 Edward J. Bals
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:10
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/10; B05B3/1064; B05B3/1007; B05B3/1014
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
125 words
A rotary atomizer comprising: a plurality of concentric hollow cones nested within one another and adapted to be rotated about their central axis, each cone having a base at its narrow end and a toothed peripheral edge of its wide end; a large number of radial grooves on the inner surfaces of the cones for directing streams of liquid to be atomized outwardly to the toothed peripheries of the cones; a small number of ribs on the outer surfaces of the cones mating with only some of the grooves on adjacent cones to space the cones apart; a stationary spindle passing axially through said cones; and thrust bearings between said cones and said spindle for holding said cones together for rotation as a rigid unit.
Claim 2
Dependent Claim
125 words
A rotary atomizer comprising: a plurality of concentric hollow cones nested within one another and adapted to be rotated about their central axis, each cone having a base at its narrow end and a toothed peripheral edge of its wide end; a large number of radial grooves on the inner surfaces of the cones for directing streams of liquid to be atomized outwardly to the toothed peripheries of the cones; a small number of ribs on the outer surfaces of the cones mating with only some of the grooves on adjacent cones to space the cones apart; a stationary spindle passing axially through said cones; and thrust bearings between said cones and said spindle for holding said cones together for rotation as a rigid unit.
Claim 3
Dependent Claim
14 words
A rotary atomiser as claimed in claim 1 having from 4 to 20 ribs.
Claim 4
Dependent Claim
14 words
A rotary atomiser as claimed in claim 2 having from 50 to 500 grooves.
Claim 5
Dependent Claim
24 words
A rotary atomiser as claimed in claim 1 having separate conical members at either end of the assembly in which the bearings are housed.
Claim 6
Dependent Claim
35 words
A rotary atomiser as claimed in claim 1 wherein the spindle is hollow and has one or more holes from the interior to the exterior slightly above the point where it passes through each cone.
Claim 7
Dependent Claim
19 words
A rotary atomiser as claimed in claim 1 wherein the spindle is notched where it passes through the cones.
Claim 8
Dependent Claim
16 words
A rotary atomiser as claimed in claim 1 wherein the bearings are needle and thrust bearings.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-09 | 1984-03-10 | 1984-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-09 | 1988-03-10 | 1988-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-09 | 1992-03-10 | 1992-09-09 | $7700.00 | Window Closed / Lapsed |