The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 1991
Filed:
Mar. 15, 1990
Kent E Cordry, Clayton, CA (US);
Other;
Abstract
A device for retrieving a groundwater sample is provided. The device includes an elonagated hollow housing, a closure assembly mounted on the top end of the housing, and a drive cone removably mounted on the bottom end of the housing. The drive cone is adapted to penetrate the ground and is configured to be restrained by the ground once in place below the ground surface, so that frictional engagement between the drive cone and housing is overcome when the closure assembly and housing are withdrawn toward the surface. Such withdrawal of the closure assembly and housing leaves the drive cone in place, separated from the housing. A collection and containment unit is mounted within the hollow housing and closure assembly for collecting a groundwater sample after the drive cone has been separated from the housing.