The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 2026
Filed:
Feb. 24, 2022
Shonan Gosei-jushi Seisakusho K.k., Hiratsuka, JP;
Takao Kamiyama, Hiratsuka, JP;
Makoto Ishida, Hiratsuka, JP;
SHONAN GOSEI-JUSHI-SEISAKUSHO K. K., Hiratsuka, JP;
Abstract
A coupler having elastically deformable clawsis fixed to the side plateof one segment. The side plateof the one segmentand the side plateof the other segmentare butted against each other, and the claws of the coupler are passed through the side plate of the other segment to protrude into the segment. The claws of the coupler protruding into the other segment are elastically deformed by a diameter expansion pinto expand the diameter of the clawsand. The claws of the coupler whose diameter has been expanded presses the side plate of the other segment against the side plate of the one segment to couple both the segments in the longitudinal direction.