Title:
穿孔装置及びその操作方法
Document Type and Number:
Japanese Patent JP7181957
Kind Code:
B2
Abstract:
A foot for a drilling device includes a foot frame and a plurality of louver assemblies attached to the foot frame. Each louver assembly includes a louver that is at a first position when the foot is on a surface and that is movable toward a second position to facilitate release of the foot from the surface.
Inventors:
Eric James Jackson
Don Earl Clark
Sina Dordogal
Don Earl Clark
Sina Dordogal
Application Number:
JP2021051090A
Publication Date:
December 01, 2022
Filing Date:
March 25, 2021
Export Citation:
Assignee:
CELLULA ROBOTICS, LTD.
International Classes:
E21B7/12; E21B47/001
Domestic Patent References:
| JP58131293A | ||||
| JP2005153038A | ||||
| JP5318335A | ||||
| JP54018402A | ||||
| JP2012016782A |
Foreign References:
| US8911180 | ||||
| CN103264614A | ||||
| US6004075 | ||||
| US20170002534 | ||||
| CN109109999A |
Attorney, Agent or Firm:
Yamato Kento
Yoshiyuki Maebori
Yoshiyuki Maebori