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.

Date of Patent:
Nov. 22, 2016

Filed:

Mar. 05, 2014
Applicants:

Gunther H. Rosen, San Diego, CA (US);

David Bart Chadwick, San Diego, CA (US);

Brittney Nguyen, San Diego, CA (US);

Hoa G Nguyen, San Diego, CA (US);

Aaron B. Burmeister, La Mesa, CA (US);

Inventors:

Gunther H. Rosen, San Diego, CA (US);

David Bart Chadwick, San Diego, CA (US);

Brittney Nguyen, San Diego, CA (US);

Hoa G Nguyen, San Diego, CA (US);

Aaron B. Burmeister, La Mesa, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 25/00 (2006.01); G21C 9/016 (2006.01);
U.S. Cl.
CPC ...
G21C 9/016 (2013.01); Y02E 30/40 (2013.01);
Abstract

A core catcher comprising: a cap configured to be secured to a first end of a core liner such that when the first end of the core liner is inserted into sediment a sample sediment core enters the core liner through the cap; a cross-beam coupled to the cap and mounted across the first end of the core liner such that a cross-section of the first end of the core liner is divided into two openings; a flexible member secured to the cross-beam such that the flexible member, the cross-beam, and the cap form a dual-flap valve designed to allow the sediment core to enter the core liner through the two openings and to prevent the sediment core from escaping the core liner through the cap.


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