Patent US2721147A successfully refreshed from Google Patents.
US2721147A
Expired / Lapsed
US
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Method and apparatus for coating
Assignee: —
•
Filing: —
•
Granted: 1955-10-18
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Expires: 1972-10-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:02
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/14; B05B7/1481; B05B7/149; B05D; B05D2401/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A METHOD OF APPLYING A DENSE TENACIOUS COATING OF CEMENTITIOUS MATERIAL TO A SURFACE WHICH COMPRISES, CONFINING A FLOWING COLUMN OF HYDRATABLE CEMENTITITOUS PARTICLES TO A TUBULAR CONDUIT, INTRODUCING A WATER CONTAINING GAS CENTRALLY OF AND IN THE DIRECTION OF FLOW OF, AND AROUND AND IN THE DIRECTION OF FLOW OF SUCH COLUMN, SAID INTRODUCTION BEING SUBSTANTALLY AT THE POINT OF EXIT OF SAID COLUMN FROM SAID CONDUIT WHILE SAID COLUMN IS IN UNCONFINED ATMOSPHERE, SAID WATER CONTAINING HYDRATING SAID CEMENTINOUS PARTICLES AND INCREASING THE VELOCITY THEREOF, AND DIRECTING THE FLOWING COLUMN AGAINST THE SURFACE TO BE COATED.
Claim 2
Independent Claim
98 words
A METHOD OF APPLYING A DENSE TENACIOUS COATING OF CEMENTITIOUS MATERIAL TO A SURFACE WHICH COMPRISES, CONFINING A FLOWING COLUMN OF HYDRATABLE CEMENTITITOUS PARTICLES TO A TUBULAR CONDUIT, INTRODUCING A WATER CONTAINING GAS CENTRALLY OF AND IN THE DIRECTION OF FLOW OF, AND AROUND AND IN THE DIRECTION OF FLOW OF SUCH COLUMN, SAID INTRODUCTION BEING SUBSTANTALLY AT THE POINT OF EXIT OF SAID COLUMN FROM SAID CONDUIT WHILE SAID COLUMN IS IN UNCONFINED ATMOSPHERE, SAID WATER CONTAINING HYDRATING SAID CEMENTINOUS PARTICLES AND INCREASING THE VELOCITY THEREOF, AND DIRECTING THE FLOWING COLUMN AGAINST THE SURFACE TO BE COATED.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US2460884A
Cited
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Cited
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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) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |