EXTRACTION DEVICE DESIGNED TO REMOVE ADAPTER FIXED IN OPENING Russian patent published in 2017 - IPC B25B27/02 B25B27/10 

FIELD: construction.

SUBSTANCE: device comprises an end wall (574) forming an outer end surface of the extraction device and a side wall (576) extending axially relative to the longitudinal axis of the device from the periphery of the end wall (574) and terminating at the end wall (580) of the extraction device. The side wall (576) forms an end surface (580). The end surface (580) of the side wall (576) is larger in size than an opening (562) in a structural element, ensuring its adjacency to the structural element at a distance from the opening (562). The side wall (576) has an inner surface (576d) and an outer surface, and the inner surface (576d) has a threaded part (586). The end wall (574) overlaps one end of the side wall (576). The inner surface (576d) of the side wall (576) has an unthreaded part (590) made between the threaded part (586) and the inner end surface (574b) of the end wall (574).

EFFECT: facilitating the adapter removal from the opening, eliminating the destruction of the connecting units when removing the adapter.

14 cl, 19 dwg