Patent ID: 8429986
Filing Date: 2013-04-30
Classification: G01N

Abstract:
1. An apparatus for groundwater sampling, the apparatus comprising: a water sampling pipe having opposite upper and lower ends; a first plug at said lower end; a center jacket pipe receiving the water sampling pipe therein, the first plug protruding from a bottom end of the center jacket pipe, the center jacket pipe having a raised part inside a top end portion thereof; a first socket detachably attached to the first plug and including a first socket cover positioned at an outer circumference thereof; a second socket detachably attached to said upper end of the water sampling pipe and including a second socket cover positioned at an outer circumference thereof; and a lift member for lifting the water sampling pipe, the lift member including a second plug detachably attached to the second socket, wherein, when the water sampling pipe is lifted by the lift member, the first socket cover is held by the bottom end of the center jacket pipe and the second socket cover is held by said raised part of the center jacket pipe, so that the first socket is separated from the first plug and the second socket is separated from the second plug, thereby sealing the water sampling pipe.