Hardening a cement mixture
First Claim
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1. IN A PROCESS OF MANUFACTURING A PORTLAND CEMENT PRODUCT IN WHCIH A LAYER OF A PORTLAND CEMENT MIXTURE CONTAINING WATER IS LOCATED UPON A SUPPORTING SURFACE AND IS TRANSFERRED FROM SAID SUPPORTING SUFRACE TO A FORM HAVE A SHAPE CORRESPONDING TO THE SHAPE OF SAID PRODUCT, THE IMPROVEMENT WHICH COMPRISES:
- APPYLING CARBON DIOXIDE GAS TO SAID MIXTURE PRIOR TO THE HYDRATION OF THE CEMENT IN SAID MIXTURE AS SAID
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1 Claim
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1. IN A PROCESS OF MANUFACTURING A PORTLAND CEMENT PRODUCT IN WHCIH A LAYER OF A PORTLAND CEMENT MIXTURE CONTAINING WATER IS LOCATED UPON A SUPPORTING SURFACE AND IS TRANSFERRED FROM SAID SUPPORTING SUFRACE TO A FORM HAVE A SHAPE CORRESPONDING TO THE SHAPE OF SAID PRODUCT, THE IMPROVEMENT WHICH COMPRISES:
- APPYLING CARBON DIOXIDE GAS TO SAID MIXTURE PRIOR TO THE HYDRATION OF THE CEMENT IN SAID MIXTURE AS SAID
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Current AssigneeGerald M. Spence
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Original AssigneeGerald M. Spence
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InventorsSpence, Gerald M.
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Application NumberUS04/291,351Time in Patent Office1,334 DaysField of SearchUS Class Current264/82CPC Class CodesB28B 11/245 Curing concrete articles B2...B28B 21/48 by wrapping, e.g. winding
