US3397780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Classification apparatus
Assignee: Buell Engineering Co Inc
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Filing: 1966-04-25
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Granted: 1968-08-20
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Expires: 1986-04-25
Abstract
No abstract record available.
Inventors
- 👤 Douglas R Beuzeval
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:54
CPC Classifications
B; B07; B07B; B07B7/00; B07B7/08; B07B7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
CLASSIFICATION APPARATUS COMPRISING A CHAMBER, AN EXHAUST DUCT LEADING FROM THE TOP OF THE CHAMBER, A CASCADE OF VANES EXTENDING ACROSS THE DUCT AND DEFINING SPACES AFFORDING OUTLET PATHS FROM THE CHAMBER INTO THE EXHAUST DUCT, A LATERAL INLET FOR THE DELIVERY OF PARTICULATE MATERIAL IN A FLUID STREAM INTO THE CHAMBER IN A DIRECTION TRANSVERSELY TO THE CASCADE OF VANES, WHEREBY FLUID FLOWING FROM THE STREAM INTO THE EXHAUST DUCT MAKES A RAPID CHAMBE OF DIRECTION THEREBY TO SUBJECT THE ENTRAINED PARTICULATE MATERIAL TO INERTIAL SEPARATION, A GRID-LIKE FLOOR AT THE BOTTOM OF THE CHAMBER BELOW THE CASCADE OF VANES AND PROVIDING ACCESS TO A CLOSED COLLECTOR SPACE, AND A CONCAVE LATERAL WALL EXTENDING FROM THE SIDE OF THE CASCADE OF VANES REMOTE FROM THE LATERAL INLET TOWARDS THE ADJACENT SIDE OF THE GRID FOR CAUSING A CIRCULATION OF FLUID FLOWING BEYOND THE CASCADE OF VANES WHEREBY PARTICOF ULATE MATERIAL IN THE CIRCULATORY FLOW IS FRACTIONALLY RETARDED BY CONTACT WITH THE WALL PRIOR TO FLOW OF FLUID ACROSS THE GRID AND WHEREBY ANY PARTICULATE MATERIAL FALLING UNDER GRAVITY DIRECTLY TOWARDS THE GRID IS SUBJECTED TO A SCRUBBING ACTION BY THE CIRCULATORY FLOW.
Claim 2
Dependent Claim
193 words
CLASSIFICATION APPARATUS COMPRISING A CHAMBER, AN EXHAUST DUCT LEADING FROM THE TOP OF THE CHAMBER, A CASCADE OF VANES EXTENDING ACROSS THE DUCT AND DEFINING SPACES AFFORDING OUTLET PATHS FROM THE CHAMBER INTO THE EXHAUST DUCT, A LATERAL INLET FOR THE DELIVERY OF PARTICULATE MATERIAL IN A FLUID STREAM INTO THE CHAMBER IN A DIRECTION TRANSVERSELY TO THE CASCADE OF VANES, WHEREBY FLUID FLOWING FROM THE STREAM INTO THE EXHAUST DUCT MAKES A RAPID CHAMBE OF DIRECTION THEREBY TO SUBJECT THE ENTRAINED PARTICULATE MATERIAL TO INERTIAL SEPARATION, A GRID-LIKE FLOOR AT THE BOTTOM OF THE CHAMBER BELOW THE CASCADE OF VANES AND PROVIDING ACCESS TO A CLOSED COLLECTOR SPACE, AND A CONCAVE LATERAL WALL EXTENDING FROM THE SIDE OF THE CASCADE OF VANES REMOTE FROM THE LATERAL INLET TOWARDS THE ADJACENT SIDE OF THE GRID FOR CAUSING A CIRCULATION OF FLUID FLOWING BEYOND THE CASCADE OF VANES WHEREBY PARTICOF ULATE MATERIAL IN THE CIRCULATORY FLOW IS FRACTIONALLY RETARDED BY CONTACT WITH THE WALL PRIOR TO FLOW OF FLUID ACROSS THE GRID AND WHEREBY ANY PARTICULATE MATERIAL FALLING UNDER GRAVITY DIRECTLY TOWARDS THE GRID IS SUBJECTED TO A SCRUBBING ACTION BY THE CIRCULATORY FLOW.
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) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |