Abrégé

A method of swarflessly cutting a pipe, comprising the steps of: forming first and second slits 10) in an external surface of the pipe (1); inserting first and second pointed blades (51), point‑first, into the respective first and second slits 10) in a radial insertion direction perpendicular to the axis of the pipe (1); moving each blade (51), in the insertion direction, through the proximal wall of the pipe (1); moving each blade (51), in the insertion direction, through the rest of the pipe (1) to completely shear a section of the pipe (1).

Classes IPC  ?

• B23D 21/02 - Machines ou dispositifs pour le cisaillage ou le tronçonnage de tubes autrement que dans un plan perpendiculaire à l'axe du tube, p. ex. pour faire des coupes biseautées, pour la fabrication de cadres de bicyclettes
• B23D 35/00 - Outils des machines à cisailler ou des dispositifs de cisaillagePorte-outils ou mandrins pour ces outils
• F16L 55/105 - Obturateurs introduits radialement dans le tuyau ou la manche
• B23D 15/14 - Machines à cisailler ou dispositifs de cisaillage taillant au moyen de lames se déplaçant parallèlement les unes par rapport aux autres caractérisés par leur entraînement ou transmission commandés hydrauliquement ou pneumatiquement

Abrégé

An apparatus for temporarily blocking fluid flow through a pipe comprises a housing configured to enclose a portion of a pipe and a flow blockage device. The housing includes a first part defining a housing chamber for receiving the pipe, and a second part defining a stowage space adjacent the housing chamber. The flow blockage device is movable through an aperture formed in one side of the pipe to an installed position in the housing chamber. The flow blockage device includes an outer sealing part that is configurable between an unexpanded configuration allowing the flow blockage device to pass through the aperture and allowing fluid flow through the pipe and an expanded configuration configured to block fluid flow through pipe by substantially preventing passage of fluid between outer side surfaces of the flow blockage device and inner surfaces of the pipe.

Classes IPC  ?

• F16L 55/124 - Moyens pour arrêter l'écoulement dans les tuyaux ou manches en introduisant dans le tuyau un élément expansible in situ introduits radialement dans le tuyau ou la manche
• F16L 41/06 - Installation de prises de branchement sur les parois de tuyaux, c.-à-d. établissement de dérivations sur tuyaux pendant qu'ils transportent des fluidesAccessoires à cet effet utilisant des moyens de fixation qui embrassent le tuyau
• F16L 41/16 - Raccordements des tuyaux aux parois ou à d'autres tuyaux, dans lesquels l'axe du tuyau est perpendiculaire au plan de la paroi ou à l'axe de l'autre tuyau le tuyau de branchement comportant des moyens pour couper l'écoulement du fluide

Abrégé

Apparatus for temporarily blocking fluid flow through a pipe (20), comprising: a housing (40) configured to enclose a portion of a pipe through which fluid flow is to be blocked, the housing comprising: a first part defining a housing chamber configured to receive the portion of the pipe; and a second part extending from the first part, the second part defining a stowage space adjacent the housing chamber; a flow blockage device (400) movable along an insertion axis from a stowed position in the stowage space (410) through an aperture formed in one side of the pipe to an installed position in the housing chamber; and wherein the flow blockage device (400) includes an outer sealing part (420), the outer sealing part (420) being configurable when the flow blockage device (400) is in the installed position between an unexpanded configuration allowing the flow blockage device (400) to pass through the aperture and allowing fluid flow through the portion of pipe in the housing chamber between outer side surfaces of the flow blockage device (400) and inner surfaces of the portion of pipe and an expanded configuration configured to block fluid flow through the portion of pipe in the housing chamber by substantially preventing passage of fluid between outer side surfaces of the flow blockage device and inner surfaces of the portion of pipe.

Classes IPC  ?

• F16L 55/105 - Obturateurs introduits radialement dans le tuyau ou la manche
• F16L 55/124 - Moyens pour arrêter l'écoulement dans les tuyaux ou manches en introduisant dans le tuyau un élément expansible in situ introduits radialement dans le tuyau ou la manche
• F16L 41/06 - Installation de prises de branchement sur les parois de tuyaux, c.-à-d. établissement de dérivations sur tuyaux pendant qu'ils transportent des fluidesAccessoires à cet effet utilisant des moyens de fixation qui embrassent le tuyau
• F16L 41/16 - Raccordements des tuyaux aux parois ou à d'autres tuyaux, dans lesquels l'axe du tuyau est perpendiculaire au plan de la paroi ou à l'axe de l'autre tuyau le tuyau de branchement comportant des moyens pour couper l'écoulement du fluide
• F16K 31/524 - Moyens mécaniques d'actionnement à manivelle, excentrique ou came à came

Abrégé

Apparatus for controlling flow of fluid through a pipe, comprising: a housing configured to enclose a portion of a pipe through which fluid flow is to be controlled, the housing comprising: a first part defining a chamber configured to receive the portion of the pipe; and a second part extending from the first part, the second part defining a stowage space adjacent the chamber; a flow control device from a stowed position in the stowage space to an installed position in the chamber for selectively controlling flow through the housing, the flow control device comprising a body having a leading end defining a cutting surface for removing a section of the pipe enclosed by the housing as the flow control device moves from the stowed position to the installed position in order to form an opening in the pipe for receiving the flow control device when in the installed position; and a rotary drive mechanism for moving the flow control device from the stowed position to the installed position in response to a rotary input.

Classes IPC  ?

• F16L 55/18 - Accessoires de réparation des tuyaux
• B23B 41/08 - Machines ou dispositifs à aléser ou à percer spécialement adaptés à un travail particulierAccessoires spécialement conçus à cet effet pour aléser, percer ou tarauder des trous dans des tubes sous pression

Abrégé

Apparatus (10) for controlling flow of fluid through a pipe, comprising: a housing (40) configured to enclose a portion of a pipe through which fluid flow is to be controlled, the housing (40) comprising: a first part (42) defining a chamber (48) configured to receive the portion of the pipe; and a second part (70) extending from the first part (42), the second part (70) defining a stowage space (72) adjacent the chamber (48); a flow control device (100) moveable from a stowed position in the stowage space (72) to an installed position in the chamber (48) for selectively controlling flow through the housing (40), the flow control device (100) comprising a body (102) having a leading end (104) defining a cutting surface (110) for removing a section of the pipe enclosed by the housing (40) as the flow control device (100) moves from the stowed position to the installed position in order to form an opening in the pipe for receiving the flow control device (100) when in the installed position; and a rotary drive mechanism (150) for moving the flow control device (100) from the stowed position to the installed position in response to a rotary input.

Classes IPC  ?

• F16L 41/06 - Installation de prises de branchement sur les parois de tuyaux, c.-à-d. établissement de dérivations sur tuyaux pendant qu'ils transportent des fluidesAccessoires à cet effet utilisant des moyens de fixation qui embrassent le tuyau
• F16L 47/34 - Branchement en charge, c.-à-d. établissement de dérivations en traversant les parois des tuyaux pendant qu'ils transportent des fluidesLeurs accessoires
• F16L 55/10 - Moyens pour arrêter l'écoulement dans les tuyaux ou manches
• F16L 55/105 - Obturateurs introduits radialement dans le tuyau ou la manche