Receptacles – Closures – Removable closure retained by ductile in situ deformation
Patent
1984-02-27
1985-01-29
Hall, George T.
Receptacles
Closures
Removable closure retained by ductile in situ deformation
206605, 249164, B65D 4116, B65D 4118
Patent
active
044960700
ABSTRACT:
A combination employing a disposable mold for making a test sample of set concrete or the like comprising a unitary plastic piece that includes a closed bottom end, a cylindrical, tubular wall extending substantially perpendicular to the bottom end and connected therewith and terminating in an open end and an annular lip connected with the cylindrical, tubular wall adjacent the open end; a locking, moisture-proof lid adapted to snap into place; and a carrying tong adapted to removably slide into engagement with said annular lip so as to carry said mold and any material in sample therewithin. Also disclosed are method of obtaining the concrete sample and the capping composition, each of which use the disposable mold. Preferably, the mold has a removable strip such as a scored stripping line or a tear away strip to facilitate removal from about the test sample. Precautions are taken to ensure that all diameters are within the tolerances allowed by the American Society For Testing Materials (ASTM) Specification C-470. Preferably, the tubular, cylindrical wall has a textured surface on its outside for receiving a written legend, such as identification of the core sample.
REFERENCES:
patent: 3163908 (1965-01-01), Lawmaster
patent: 3527164 (1970-09-01), Lawmaster
patent: 3759415 (1973-09-01), Cloyd
patent: 4004710 (1977-01-01), Crisci
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