Apparatus and method for withdrawing cores from drilled holes

A core extracting device, comprising:

• a generally cylindrical outer casing extending from an upper end to an open lower end;
• a cap joined along the upper end, the cap comprising:
• at least one latch slot;
• at least one cap connector hole;
• and
• at least one upwardly extending attachment plate;
• a plurality of cutouts through the outer casing and spaced apart along a circumferential inner surface of the outer casing;
• and
• an inner grabber snugly slidable along said circumferential inner surface between a release condition and a gripping condition engaging the core, the inner grabber comprising:
• a spider plate, wherein the spider plate provides a plurality of radially extending spider arms from which a plurality of fingers perpendicularly extends downward from;
• at least one latch hook upwardly extending from the spider plate and through a respective latch slot of the at least one latch slot in the release condition;
• at least one plate connector hole provided in the spider plate;
• a wedge provided along an outer surface of each finger of the plurality of fingers, wherein each wedge nests in a respective cutout of the plurality of cutouts in the release condition,
• wherein the gipping condition the inner grabber protrudes from said lower end and each wedge is not nested in its respective cutout of the plurality of cutouts;
• a latch for each latch hook, wherein the latch is engageable with a respective latch hook of the at least one latch hook between an unlocked engagement and a locking engagement in the release condition;
• and
• at least connecter interconnecting a respective plate connector hole and a respective cap connector hole of the at least one plate and cap connector holes, respectively.