Class 405/147 - Seal

Subclass of Class 405 - Hydraulic and earth engineering
Definition: Method or apparatus including means which prevent the passage
No. of patents: 34
Last issue date: 10/31/2006

Number	Title	Issue Date
7128375	Method and means for recovering hydrocarbons from oil sands by underground mining The present invention is directed generally to the combined use of slurry mining and hydrocyclones to recover hydrocarbons, such as bitumen, from hydrocarbon-containing materials, such as oil sands, and to selective mining of valuable materials, particularly hydroca...	10/31/2006
7097255	Method and means for processing oil sands while excavating The present invention is directed to the separation of bitumen, such as by the Clark process or by a countercurrent de-sander, in an underground excavation machine, such as a tunnel boring machine. ...	08/29/2006
6595724	Tunnel excavating machine and excavating method A tunnel excavating machine of high-speed construction capable of completely stopping invasion of water and allowing covering members to be assembled easily is provided. This tunnel excavating machine comprises: a cylindrical excavating machine main porti...	07/22/2003
6592296	Sealing assembly for tunnel construction sections A sealing assembly comprising two abutting components and a sealing profile produced from an elastomeric material, which bridges the gap between the two components to form a seal. The components are configured in particular as sections which are assembled...	07/15/2003
6129485	Seal and process for producing such seal The invention relates to a seal between a side face of a first part (11) and an application face (10), the seal being made of a compressible profiled lining (1) and being comprised of an internal portion (2) sealingly fixed to the first part (11) and an e...	10/10/2000
6092963	Tail structure of shield driving machine The present invention relates to a tail structure of a shield driving machine, and in particular relates to an improvement technique of the tail sealing portion of this type of shield driving machine, in order to eliminate wearing of the tail seal. The ta...	07/25/2000
5346331	Shield tail sealing The invention relates to a shield tail sealing (7) for driving shields consisting of a basic body (2) made of elastomeric material and having a substantially rectangular cross section in the longitudinal direction and being inclined against the driving di...	09/13/1994
5253955	Automatically advancing supporting and sliding form for introducing an in-situ concrete lining A slide formwork with a formwork body (10) comprising several formwork segment groups (12, 22, 32) lying adjacent to one another in circumferential direction. Each of the formwork segment groups (12, 22, 32) is rigidly connected with one of several suppor...	10/19/1993
5221160	Subterranean connecting method for construction of shield tunnel and connecting apparatus therefor A disclosure is made of a subterranean connecting method and a connecting apparatus therefor which are suitable for use when two shield machines are used to excavate a pair of tunnel sections from both ends of a tunnel, and the tunnel sections are connect...	06/22/1993
5051033	Bracing device for a self-advancing shield tunnelling machine A bracing device for a self-advancing shield tunnelling machine for tunnel construction comprising a control shield within which is mounted a cutting unit, and at least two bracing shields each having a closed circumferential wall construction which are c...	09/24/1991
4990027	Shield tunneling method and shield machine therefor A small diameter shield tunnel is constructed by using a shield machine and assembling within a tail portion of the machine a set of three 120° arcuate segments into a segment ring. An annular seal device is axially movably provided between the outer per...	02/05/1991
4911578	Process for making a tunnel and advancing a tunneling read with a wall-supporting shield In my process for digging a tunnel with the help of a tunnel excavator which has a working chamber under atmospheric pressure, the local front wall is supported with the help of a pressurized medium which is connected by a controlling gap of a shield cove...	03/27/1990
4909668	Movable sealing assembly for tunneling machines The movable tight-sealing ring is positioned between an excavator cover end and a form or casing structure. For a satisfactory movability of the excavator cover end interstice, the tight-sealing sealing ring is supported resiliently by adjustable supporti...	03/20/1990
4895480	Method and apparatus for formation of a tunnel lining A method and apparatus for closing or sealing the gap space defined between a tunnel support frame and the ground during the tunneling formation of adits in connection with underground mining operations and the construction of underground tunnels, wherein...	01/23/1990
4874267	Tunnel boring machine Telescopic tunnel boring machine including a front shield (10) and a rear shield (16) with a cutting head (14) at the forward end of the front shield. Rearwardly extending shutters can be moved out hydraulically by auxillary cylinders (54) from the rear e...	10/17/1989
4863313	Method for lining tunnel wall formed by shield excavation A method for lining a tunnel wall formed by a shield excavation includes filling a space between the tunnel wall surface and the outer peripheral surface of a lining form in two stages by dividing space into two, portions. One stage of the method is carri...	09/05/1989
4854776	Process and apparatus for lining a tunnel with concrete A process for lining a tunnel with concrete behind a tunnel excavator having a for front advanced along with an excavator head in which the concrete is forced between the surrounding subterranean geological structure and an inner tunnel-lining form throug...	08/08/1989
4645378	Movable form front for a tunnel-lining form A form front positioned between the shield of a tunnel excavator and a tunnel-lining form movable relative to both the shield and the tunnel-lining form. The form front comprises an annular support positioned with clearance space from the shield and the t...	02/24/1987
4594025	Tunnelling and tunnel relining equipment A method of constructing a lined or relined tunnel utilizes four lining segments, three of which (1, 2, 3) have a longer arcuate length than the fourth (4). The tunnel is constructed within a shield (20) having a tubular member (21) and a curved build pla...	06/10/1986
4558906	Shield machine A shield machine for enlarging a portion of an existing tunnel includes an inner and outer double cylinder shaped shield machine body with a cylindrical outer shield portion and a cylindrical inner guide portion designed to be driven in an axial direction...	12/17/1985
4457515	Brush seal and method Disclosed is a method and apparatus for positioning a pair of opposed brush assemblies in a gap defined by end baffles between process chambers. The brushes have a plurality of offset bristle clusters secured to a header, and the header is preferably angl...	07/03/1984
4444526	Submerged tunnel and a method of and means for constructing a submerged tunnel A method of, and apparatus for, constructing a submerged tunnel in situ and a submerged tunnel formed thereby has an inverted arch formation to resist upward buoyancy thrust and a sealed chamber unit mounted on the tunnel and longitudinally displaceable a...	04/24/1984
4436448	Excavating machine for tunnels and galleries A tunnel excavating machine for generating tunnels and galleries in subterranean structures, comprises in addition to the excavating head, a shield which travels with the head and advances along the excavation and lines the tunnels wall at least temporari...	03/13/1984
4209268	Tail packing for a slurry pressurized shield A tail packing for a slurry pressurized shield is provided, comprising outer layers of strings and a filter element layer between the outer layers. The outer layers are composed of a number of strings densely arranged in a juxtaposed relation....	06/24/1980
4199158	Profiled gasket for sealing tunnel segment joints Profiled gasket for sealing tunnel segment joints, which is placed in a receiving groove in this segment and which is made of a body of rubber or an elastically deformable synthetic material, said body having at the one side two outer legs, within which t...	04/22/1980
4173430	Method of injecting a back filling injection material in a shield forming process A novel method of injecting a back filling injection material employed in a shield-forming process is described herein. A screw type injection pump with a hopper connected to its intake port is utilized. This pump is rotated in a reverse direction to inta...	11/06/1979
4147453	Method of, and apparatus for, driving and lining tunnels Apparatus for driving and lining tunnels utilizes a knife shield for driving a tunnel and shuttering for forming a concrete lining behind the knife shield. The shuttering is constituted by a plurality of shuttering elements, each of which is connected to,...	04/03/1979
4139989	Seals for tunnelling shields A tail seal for a tunnelling shield, particularly for use in the bentonite process, in which a seal is formed of short brush-like material mounted on a flexible support and resiliently urged by a body of closed cell expanded material, such as neoprene. In...	02/20/1979
4116011	Method of excavating tunnels A method of excavating tunnels comprises digging an excavation to form a tunnel, gradually pushing a casing inwardly of the excavation as the excavation proceeds, the cross-sectional area of the excavation being larger than the outer cross-sectional area ...	09/26/1978
4110992	Brush-type packing means for shield excavator A brush-type packing means for shield tunnel excavators which is high in wear resistance and sealing effect against under ground water is provided. The packing means comprises a resilient wire brush secured substantially in a ring shape along the inner pe...	09/05/1978
4063425	Tunnel driving apparatus A shield for tunnel driving operations comprises a plurality of elongate drive members supporting the tunnel wall at a forward region and carried by a frame. Rams serve to advance the members individually, or in groups, and to shift up the frame. Each dri...	12/20/1977
4057971	Brush-type packing means for shield excavator A brush-type packing means for shield tunnel excavators which is high in wear resistance and shielding effect against underground water is provided. The packing means comprises at least two rows of resilient wire brushes secured substantially in parallel ...	11/15/1977
4003211	Methods and apparatus for constructing tunnels In a tunnel driving apparatus which employs hydraulic rams for advancing a shield in the direction of tunnel advancement, a thrust ring is used as a support for the rams. Lining sections are installed at the rear side of the thrust ring as the latter is s...	01/18/1977
3979920	Sealing means A sealing means is provided for sealing against passage of liquid between two surfaces, as between the tail-piece of a tunnelling machine and the tunnel lining to prevent ingress of working liquid into the tunnel workings, said sealing means comprising a ...	09/14/1976

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Class 405/147 - Seal