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:
Jun. 03, 1997
Filed:
Sep. 06, 1995
Applicant:
Inventors:
Kenichi Kaneko, Tokyo, JP;
Toshihiko Bessho, Tokyo, JP;
Yoshihiro Uchiyama, Kobe, JP;
Toshihumi Inoue, Kobe, JP;
Masahiko Sugiyama, Kobe, JP;
Assignees:
Taisei Corporation, Tokyo, JP;
Mitsubishi Jukogyo Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F21D / ;
U.S. Cl.
CPC ...
299 33 ;
Abstract
A turnable tunnel excavator and tunneling method are provided which can alternate between construction of a main tunnel A and crosscuts B, and can excavate other tunnels without having to pass through an arc. It is comprised of a main machine and an ancillary machine housed inside a pivotable housing within the said main machine and how to operate such a machine.