LandOfFree - US Patents - Listing for Hydraulic and earth engineering,Underground passageway, e.g., tunnel,Lining

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Material and method for lining pipes

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and apparatus for feeding a tunnel roof support...

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and apparatus for relining underground passageway

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and apparatus for removing contaminants from a duct or pi

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and apparatus for the production of underground pipelines

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and apparatus for tunnel lining

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and arrangement for concreting vertical shafts

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and device for removing resilient gallery lining frames i

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and device for stabilizing a cavity excavated in...

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and device for stabilizing a cavity excavated in...

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and equipment for ventilating underground workings

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and system for encasing an endless, laid pipeline...

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method for building large span tunnels by means of a cellular ar

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method for constructing an enlarged tunnel and apparatus for for

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method for reducing frictional losses in tunnels

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method for reinforcing tunnel linings

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method for repairing in-ground tunnel structures

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method for the production of a cavity limited by a flexible mate

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method of connection