China National Offshore Oil has filed a patent for a spacer insertion device used in coring instruments. The device includes a slider and a cylinder body that push a spacer into a core channel connected to a core barrel. GlobalData’s report on China National Offshore Oil gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on China National Offshore Oil, AI assisted CAD was a key innovation area identified from patents. China National Offshore Oil's grant share as of June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.
Spacer insertion device for a coring instrument
A recently filed patent (Publication Number: US20230194388A1) describes a spacer insertion device for a coring instrument. The device includes a spacer insertion mechanism fixed on a base body of a core detection device. The mechanism consists of a slider and a cylinder body, with the output end of the cylinder body connected to the slider. The slider is slidably connected to the base body and is used to push a spacer into a core channel in the base body, which is in communication with a core barrel.
The spacer insertion mechanism also includes a rotating arm, with the cylinder body fixed to the base body. The output end of the cylinder body is connected to the slider through the rotating arm, enabling the slider to slide. The base body is composed of a main body and a partition plate, with a sliding cavity formed between them for the slider to slide. The slider abuts against the partition plate, and two guide ribs are provided on the main body to guide the sliding of the slider. A chute is formed between the guide ribs for the spacer to slide, with a gap provided between the slider and the bottom of the chute.
Additionally, the spacer insertion mechanism includes a second housing fixed to the base body through a bracket. The rotating arm is rotatably installed on the bracket and hinged with both the slider and the output end of the cylinder body. The cylinder body is located within the second housing, with its output end extending out of the housing. The slider spans across the base body, and two rotating arms are provided on each side of the base body. The slider and rotating arms are connected through a first elongated hole and a second rotating shaft.
The patent also describes the structure of the second housing, which consists of a second end cap, a second shell, and a plug. The output end of the cylinder body extends out of the second housing through the second end cap, and a second seal corresponding to the end cap is provided in the second shell.
The slider has an M-shaped cross-section and includes guide grooves corresponding to the guide ribs. The end face of the slider facing the spacer is provided with an arc surface that matches the spacer. The slider also has a slider body that extends into the chute and forms a gap between its bottom and the bottom of the chute. The patent specifies that the gap is 1 mm.
Furthermore, the base body is equipped with a spacer barrel that contains multiple spacers and a compression spring. The compression spring can press the spacers against the base body. The base body also has a sliding cavity in communication with the core channel and a spacer channel in communication with the spacer barrel. The spacer channel extends to the sliding cavity.
In summary, the patent describes a spacer insertion device for a coring instrument that includes a slider, cylinder body, rotating arm, and base body. The device allows for the insertion of spacers into a core channel and features a unique design to facilitate smooth sliding and accurate placement of the spacers.
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