Korea Institute of Geoscience and Mineral Resources

Agency for Defense Development

Yong Cheol Kim

Bong Joo Lee

Jun Woo Kim

Kyung Seok Ko

Yong Je Kim

Man Bok Hong

Gwang Tae Kim

Byoung Woo Yum

Ki Hwa Park

Sang Ho Moon

Hee Sung Yoon

Kyoo Chul Ha

Dong Chan Koh

The wearable gravity compensation apparatus capable of multiple degrees of freedom of movement according to an example embodiment includes a main frame configured to be fixable to a back of a user, a base link rotatably connected to the main frame around a first rotation axis, a front extension link having one end rotatably connected to the base link around a second rotation axis intersecting the first rotation axis, the front extension link extending to a front of the base link, a rear extension link connected to the base link, the rear extension link extending to a rear of the base link, a guide positioned above the base link, the guide provided on the main frame, a slider configured to be slidable along the guide, a gravity compensation elastic member having one end fixed to the main frame, and the other end fixed to the slider.

Wearable gravity compensation apparatus capable of multiple degrees of freedom of movement

There is provided an automatic sequential sampler for roof-top runoff of rainwater, which comprises: a sensing part, a controlling part and a sampling part, and more particularly, which takes samples of rainwater, at regular intervals, by sensing whether it rains and controlling the rotation and stop of a sample bottle shelf in the sampling part, using a timer and a counter.

Automatic sequential sampler for roof-top runoff of rainwater

There is provided an apparatus for injecting a tracer within a groundwater observation well, which is capable of sequentially performing a tracer test by depth by injecting the tracer to a predetermined depth within the groundwater observation well. More particularly, the present invention relates to an apparatus and method for instantaneously injecting a tracer to a groundwater well, whereby opening and closing of a container receiving the tracer is controlled by using a pneumatic cylinder and the tracer on the ground is supplied to the container, so that the tracer is repeatedly carried and injected to a specific depth in a well.

Apparatus and method for instantaneously injecting tracer for groundwater well

Growing community of inventors

Daejeon, South Korea

Yong Cheol Kim