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:
May. 18, 1993
Filed:
Jan. 31, 1992
David L Richter, Ponca City, OK (US);
Michael C Kasl, Ponca City, OK (US);
David Overman, Ponca City, OK (US);
Joel F Wilson, Ponca City, OK (US);
Conoco Inc., Ponca City, OK (US);
Abstract
The present invention provides an apparatus and method for obtaining a subterranean material sample. The inventive sampling apparatus comprises an elongate housing having a passageway extending longitudinally therethrough, a tip member movable through the passageway, and a locking means for releasably preventing the tip member from moving from a first portion of the passageway to a second portion of the passageway. The inventive sampling method comprises the step of inserting the inventive sampling apparatus into the ground. The present invention also provides a device for retaining material in a housing, said device comprising a plurality of resilient petal members.