# US 11,029,237 B2 · Systematic device for abyssal sediment pressure-holding transfer

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- Number: US 11,029,237 B2
- Document ID: US11029237B2
- Status: Granted
- Kind: B2
- Application number: 16/408,196
- Filed: 2019-05-09
- Published: 2020-11-12
- Granted: 2021-06-08
- Earliest claimed: 2019-05-09
- Assignees: Zhejiang University
- Applicants: Zhejiang University
- Inventors: Jiawang Chen; Jing Xiao; Jiasong Fang; Weitao He; Hao Wang; Yue Huang; Wei Wang; Yuxia Sun
- Web page: https://patentgrep.com/patent/US11029237B2

## CPC

- G01N 1/14: Suction devices, e.g. pumps; Ejector devices
- G01N 1/38: Diluting, dispersing or mixing samples
- G01N 33/24: Earth materials (G01N33/42 takes precedence)
- G01N 2001/1025: {Liquid suspensions; Slurries; Mud; Sludge}
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)

## Abstract

A sediment pressure-holding transfer device developed based on abyssal sediment fidelity sampler is disclosed, which uses a vacuum pump to discharge a gas in the device, uses a high-pressure pump as a power source to perform a pressurization process, uses gravity of a sample to perform a first transfer, and uses a high-pressure impurity pump and a safety valve to perform a second transfer of a sample mixture, in its structure, a high-pressure-resistant and corrosion-resistant material is used as a main material of the device, the device mainly comprises a mechanical system and a hydraulic system, the mechanical system is used as a main frame of the device and is a basis for ensuring operation of the device; the hydraulic system is used as a core of the device and is a key to ensure success of sediment transfer.

## Claims

### Claim 1

A sediment pressure-holding transfer device, comprising:—a sediment fidelity sampler; wherein the sediment pressure-holding transfer device uses a vacuum pump to discharge a gas in the device, uses a high-pressure pump as a power source to perform a pressurization process, uses gravity of a sample to perform a first transfer, and uses a high-pressure impurity pump and a safety valve to perform a second transfer of a sample mixture, in its structure, a high-pressure-resistant and corrosion-resistant material is used as a main material of the device, the device comprises a mechanical system and a hydraulic system, the mechanical system is used as a main frame of the device and is a basis for ensuring operation of the device; the hydraulic system is used as a core of the device; the mechanical system and the hydraulic system cooperate together to ensure that a sediment sample is smoothly transferred from a sediment sampling cylinder to a culture kettle,
the sediment fidelity sampler has a volume of ≥150 ml and a height of ≥100 mm, and is connected with the pressure-holding transfer device by using a ball valve thread interface;
the gas to be discharged refers to air present in a container, and a purpose is to ensure that the sample is not contaminated by other substances in the air during a transfer process, and another purpose is to avoid a danger caused by a poor compression ratio of the gas during the pressurization process; and
the pressurization process refers to a continuous filling of a high-pressure liquid into a corresponding container through a high-pressure pump so that a pressure of the container equals to an in-situ pressure of a seabed sample.

### Claim 2 (depends on 1)

The sediment pressure-holding transfer device according to claim 1, wherein a pressurized medium used for the pressurization process is a microorganism-specific culture liquid.

### Claim 3 (depends on 1)

The sediment pressure-holding transfer device according to claim 1, wherein the main material of the device is Tc4.

### Claim 4 (depends on 1)

The sediment pressure-holding transfer device according to claim 1, wherein the transfer process comprises a first transfer and a second transfer, the first transfer refers to a process in which the sediment is transferred from a sampling bucket to the high-pressure magnetic stirring container, the second transfer refers to a process in which a sediment-culture liquid mixture is transferred to the culture kettle.