US3173980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace dust and fume collection system
Assignee: Wheelabrator Corp
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Filing: 1962-11-21
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Granted: 1965-03-16
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Expires: 1982-11-21
Abstract
No abstract record available.
Inventors
- 👤 David M Hysinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:04
CPC Classifications
F; F27; F27D; F27D17/00; F27D17/30; F27D17/304
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
AN APPARATUS FOR DISPOSING OF DUST AND FUME IN GASES EXITING FROM A FURNACE OPENING, SAID APPARATUS COMPRISING IN COMBINATION, A CONDUIT DEVICE HAVING IN TIS INTAKE END IN REGISTRY WITH THE FURNACE OPENING FOR CARRYING OFF THE FURNACE FUME AND DUST GASES, SAID CONDUIT DEVICE INCLUDING FLUID EXHAUST MEANS, MEANS PROVIDING AM AMBIENT ATMOSPHERE ASPIRATING EFFECT INTO SAID CONDUIT DEVICE AT A POSITION ADJACENT SAID FURNACE, AND MEANS OPERABLE TO REGULATE THE POSITION OF SAID CONDUIT INTAKE END RELATIVE TO SAID OPENING TO PROVIDE CONTROL OF SAID ASPIRATING EFFECT.
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |