US3248860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air washers
Assignee: Westinghouse Electric Corp
•
Filing: 1963-06-18
•
Granted: 1966-05-03
•
Expires: 1983-06-18
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:18
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
AN AIR WASHER COMPRISING AN ELONGATED, HORIZONTALLY EXTENDING, CYLINDRICAL CASING HAVING AN AIR INLET AT ONE END AND AN AIR OUTLET AT THE OPPOSITE END SPRAY NOZZLE WITHIN SAID CASING ADJACENT TO SAID INLET, A CYLINDER WITHIN SAID CASING CONCENTRIC THEREWITH DOWNSTREAM OF SAID NOZZLES, A PAIR OF SPACED APART SWIRL VANES WOUND SPIRALLY AROUND SAID CYLINDER WITH THEIR INNER EDGES IN CONTACT WITH THE OUTER SURFACE OF SAID CYLINDER AND THEIR OUTER EDGES IN CONTACT WITH THE INNER SURFACE OF SAID CASING, ONE OF SAID VANES EXTENDING SUBSTANTIALLY 180* AROUND SAID CYLINDER, AND THE OTHER ONE OF SAID VANES EXTENDING SUBSTANTIALLY 360* AROUND SAID CYLINDER, SAID CASING HAVING A BOTTOM PORTION, SAID VANES HAVING OUTLET ENDS TERMINATING IN SAID BOTTOM PORTION OF SAID CASING TO ONE SIDE OF A VERTICAL PLANE EXTENDING THROUGH THE AXIS OF SAID CYLINDER, SAID CYLINDER HAVING A BOTTOM PORTION, HAVING A CLOSED UPSTREAM END AND AN OPEN DOWNSTREAM END, SAID BOTTOM PORTION OF SAID CYLINDER BEING CUT AWAY TO HAVE A STRAIGHT EDGE EXTENDING FROM SAID OPEN END TOWARDS SAID CLOSED END SUBSTANTIALLY PARALLEL TO SAID AXIS AND TO THE SAME SIDE OF SAID VERTICAL PLANE AS SAID OUTLET ENDS OF SAID VANES.
Claim 2
Dependent Claim
199 words
AN AIR WASHER COMPRISING AN ELONGATED, HORIZONTALLY EXTENDING, CYLINDRICAL CASING HAVING AN AIR INLET AT ONE END AND AN AIR OUTLET AT THE OPPOSITE END SPRAY NOZZLE WITHIN SAID CASING ADJACENT TO SAID INLET, A CYLINDER WITHIN SAID CASING CONCENTRIC THEREWITH DOWNSTREAM OF SAID NOZZLES, A PAIR OF SPACED APART SWIRL VANES WOUND SPIRALLY AROUND SAID CYLINDER WITH THEIR INNER EDGES IN CONTACT WITH THE OUTER SURFACE OF SAID CYLINDER AND THEIR OUTER EDGES IN CONTACT WITH THE INNER SURFACE OF SAID CASING, ONE OF SAID VANES EXTENDING SUBSTANTIALLY 180* AROUND SAID CYLINDER, AND THE OTHER ONE OF SAID VANES EXTENDING SUBSTANTIALLY 360* AROUND SAID CYLINDER, SAID CASING HAVING A BOTTOM PORTION, SAID VANES HAVING OUTLET ENDS TERMINATING IN SAID BOTTOM PORTION OF SAID CASING TO ONE SIDE OF A VERTICAL PLANE EXTENDING THROUGH THE AXIS OF SAID CYLINDER, SAID CYLINDER HAVING A BOTTOM PORTION, HAVING A CLOSED UPSTREAM END AND AN OPEN DOWNSTREAM END, SAID BOTTOM PORTION OF SAID CYLINDER BEING CUT AWAY TO HAVE A STRAIGHT EDGE EXTENDING FROM SAID OPEN END TOWARDS SAID CLOSED END SUBSTANTIALLY PARALLEL TO SAID AXIS AND TO THE SAME SIDE OF SAID VERTICAL PLANE AS SAID OUTLET ENDS OF SAID VANES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |