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:
Oct. 03, 2017
Filed:
Mar. 23, 2015
Southeast University, Nanjing, CN;
SOUTHEAST UNIVERSITY, Nanjing, CN;
Abstract
A gravity-type pore pressure dynamic penetration device for exploration of shallow-layer seabed soil includes a third drop hammer, a second drop hammer, a first drop hammer, a stable empennage, and a probe rod which are sequentially arranged from top to bottom. A sidewall friction sleeve is arranged outside a probe rod lower cylinder. A friction sleeve sensor is provided on an inner sidewall of the sidewall friction sleeve. A first pore water pressure sensor, a conical tip pressure sensor, a temperature compensation sensor, and an inclinometer sensor are provided in the middle of the probe rod lower cylinder. A second pore water pressure sensor and an acceleration sensor are provided in the middle of a probe rod upper cylinder. The tail portion of the probe rod, that is, the upper portion of the probe rod upper cylinder is connected to the stable empennage.