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:
Mar. 14, 1989
Filed:
Oct. 16, 1986
Richard L Johnson, Beaverton, OR (US);
John A Cherry, Waterloo, Ontario, N2L 5H7, CA;
James F Pankow, Beaverton, OR (US);
Other;
Abstract
The disclosed sampler comprises a reservoir formed as a stainless steel tube of narrow diameter. Two copper tubes are attached to the reservoir, one each end, and the copper tubes may be crimped so as to seal the sample within the reservoir. The sample (of water) is allowed into the reservoir through a check-valve which is opened and closed by controlling the pressure--from the surface --inside the sampler. The disclosed sampler is sealed into the borehole by means of an inflatable collar, which is also under the control of a surface-manipulated pressure. Samples transported and stored in the sampler are presented for analysis complete with contained gases and uncontaminated.