Patent US2495540A successfully refreshed from Google Patents.
US2495540A
Expired / Lapsed
US
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Method of coating with lightweight aggregates
Assignee: Illinois Clay Products Co
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Filing: 1947-01-21
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Granted: 1950-01-24
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Expires: 1967-01-21
Abstract
No abstract record available.
Inventors
- 👤 Arthur S Nichols
- 👤 Robert A Prosser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:18
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/02; E04F21/06; E04F21/08; E04F21/12; Y; Y10; Y10S; Y10S106/00; Y10S106/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
THE METHOD OF COATING A SURFACE WITH LIGHT WEIGHT INSULATING AGGREGATE WHICH COMPRISES SUCKING A DRY, LOOSELY PACKED MIXTURE OF SAID AGGREGATE AND BENTONITE FROM A SOURCE OF SUPPLY, CONFINING SAID DRY MIXTURE IN THE FORM OF A CONTINUOUSLY MOVING AIR-BORNE STREAM, PROJECTING SAID STREAM OUT OF CONFINEMENT IN THE FORM OF A FREE, UNCONFINED STREAM TOWARD THE SURFACE TO BE COATED, AND SIMULTANEOUSLY CONTINUOUSLY INTRODUCING A SPRAY OF WATER AROUND AND INTO THE UNCONFINED STREAM IN SUFFICIENT AMOUNT AND AT SUCH DISTANCE FROM SAID SURFACE THAT THE ADHESIVE CHARACTERISTICS OF THE BENTONITE WILL BE DEVELOPED BEFORE THE STREAM ENGAGES SAID SURFACE.
Claim 2
Independent Claim
102 words
THE METHOD OF COATING A SURFACE WITH LIGHT WEIGHT INSULATING AGGREGATE WHICH COMPRISES SUCKING A DRY, LOOSELY PACKED MIXTURE OF SAID AGGREGATE AND BENTONITE FROM A SOURCE OF SUPPLY, CONFINING SAID DRY MIXTURE IN THE FORM OF A CONTINUOUSLY MOVING AIR-BORNE STREAM, PROJECTING SAID STREAM OUT OF CONFINEMENT IN THE FORM OF A FREE, UNCONFINED STREAM TOWARD THE SURFACE TO BE COATED, AND SIMULTANEOUSLY CONTINUOUSLY INTRODUCING A SPRAY OF WATER AROUND AND INTO THE UNCONFINED STREAM IN SUFFICIENT AMOUNT AND AT SUCH DISTANCE FROM SAID SURFACE THAT THE ADHESIVE CHARACTERISTICS OF THE BENTONITE WILL BE DEVELOPED BEFORE THE STREAM ENGAGES SAID SURFACE.
References Cited (Backward Citations)
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US2081935A
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US2076898A
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US2264108A
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US2333189A
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US2374732A
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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) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |