Device and method for taking a sample

Patent metadata

Field	Value
Publication number	US-10697862-B2
Application number	US-201715847405-A
Country	US
Kind code	B2
Filing date	Dec 19, 2017
Priority date	Dec 20, 2016
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

The invention relates to a device and a method for taking a sample of a filling, with which a hole in the ground is filled, having a container with at least one inlet opening for the inflow of the filling into a receiving space of the container. According to the invention provision is made in that a closing cap is placed onto the inlet opening and this is closed thereby. The container is provided with a compressed air line which leads into the receiving space, wherein on feeding compressed air into the receiving space the closing cap is released from the inlet opening and this is exposed for the inflow of the filling.

First claim

The invention claimed is:

1. A device for taking a sample of a flowable filling, with which a hole in a ground is filled, comprising:
a container with at least one inlet opening for the inflow of the filling into a receiving space of the container, the inlet opening being laterally arranged in a wall of the container, wherein
a closing cap is placed onto the inlet opening and this is closed thereby, the closing cap being made of plastic material and with a certain oversize to produce a press fit in the inlet opening, and
the container is configured to be connected to a compressed air line which leads into the receiving space, wherein on feeding compressed air into the receiving space the closing cap is released from the inlet opening and this is exposed for the inflow of the filling.

2. The device according to claim 1 ,
wherein
the closing cap is designed as a lost closing cap.

3. The device according to claim 1 ,
wherein
the container is designed as a tubular body which has a connecting means on an upper end section for attachment of the compressed air line.

4. The device according to claim 1 ,
wherein
the compressed air line has a high-pressure injection rod with a thread on a lower end and the container is screwed onto the thread.

5. The device according to claim 1 ,
wherein
on a lower end section of the container a tip is arranged.

6. The device according to claim 5 ,
characterized in that
on the tip a further opening is provided which is closed by a discharge plug.

7. The device according to claim 1 ,
wherein
on a lower end section of the container a discharge valve is arranged, with which a filling taken as a sample can be discharged from the container.

8. The device according to claim 7 ,
wherein
the discharge valve is designed as a non-return valve with a downward directed actuating pin.

9. A method for taking the sample of the flowable filling, with which the hole in the ground is filled, in particular with the device according to claim 1 , having the container with at least one inlet opening, through which the filling flows into the receiving space of the container, the inlet opening being laterally arranged in the wall of the container,
wherein
the closing cap is placed into the inlet opening of the container and the inlet opening is closed, the closing cap being made of plastic material and with the certain oversize to produce the press fit in the inlet opening,
the container of the device is introduced up to a desired depth into the hole, the container being configured to be connected to the compressed air line,
via the compressed air line compressed air is fed into the receiving space, wherein the closing cap is released from the inlet opening and this is exposed,
through the inlet opening a filling flows into the receiving space of the container and
the device with the filled container is withdrawn from the hole.

10. The method according to claim 9 ,
wherein
the container is fixed on a lower end of a high-pressure injection rod, through which compressed air is fed into the container.

11. The method according to claim 9 ,
wherein
the container is withdrawn from the hole with the inlet opening being open.

Assignees

• Bauer Spezialtiefbau

Inventors

• Duchow Stephan

Classifications

• E02D33/00 Primary

  Testing foundations or foundation structures (testing methods and apparatus, see the relevant subclasses of class G01; testing structures or apparatus as regards function, in general, G01M; testing or determining chemical or physical properties, in general G01N) · CPC title

• E02D1/06

  Sampling of ground water · CPC title

• G01N1/20 Primary

  for flowing or falling materials ({G01N1/2035} G01N1/12, G01N1/14 take precedence) · CPC title

• E21B27/00

  Containers for collecting or depositing substances in boreholes or wells, e.g. bailers, {baskets or buckets} for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits · CPC title