Valve Insert
OwnerIan Lyonsinventor
Life of this patent
Estimating the term…
Abstract
An insert is provided for insertion through an opening in the surface of a conduit, the insert comprising an insert body having first and second open ends defining an axis of flow therebetween. The insert further comprises a valve flap connected to N the insert body. The valve flap is moveable between a closed position in which it creates a closure, thereby preventing flow along said axis, and an open position in which the valve flap allows flow along the axis. The valve flap is arranged so that, when in the open position, it is substantially U-shaped in side cross-section and is oriented with respect to the insert body so that said U-shape arches over the axis of flow.
Claims26
1-28. (canceled)
A method of installing an insert for provision of a valve in a conduit, the method comprising creating a slot in the surface of the conduit, said slot not extending across a full cross-section of the conduit, and fitting the insert, which includes an insert body and a valve flap, via said slot;
- wherein creating the slot in the surface of the conduit comprises affixing a jointing strap having a cut out portion to an outer surface of the conduit and using the cut out portion as a slot cutting template for the conduit;
- and the cut out portion of the jointing strap holding the insert in place when the conduit is being sealed therearound.
An insert for provision of a valve in a conduit, the insert comprising an insert body and a valve flap, wherein the insert is to be fitted in the conduit via a slot formed in the surface of the conduit, said slot not extending across a full cross-section of the conduit;
- and a jointing strap for affixing to an outer surface of the conduit, the jointing strap having a cut out portion;
- wherein the cut out portion of the jointing strap forms a slot cutting template for creating the slot in the conduit, and the cut out portion holds the insert in place when the conduit is being sealed therearound.
A method of creating a slot in the surface of a conduit, the method comprising affixing a jointing strap having a cut out portion to an outer surface of the conduit and using the cut out portion as a slot cutting template for the conduit;
- wherein, after the conduit has been cut and an insert positioned within the conduit, the jointing strap is rotated so that the cut out portion thereof surrounds a portion of the conduit which has not been cut and the slot of the conduit is covered by a continuous section of the jointing strap;
- the cut out portion of the jointing strap holding the insert in place when the conduit is being sealed therearound.
A jointing strap to be affixed to an outer surface of a conduit, the jointing strap having a cut out portion which can serve as a slot cutting template for cutting the correct size of slot in order to fit an insert into the conduit.
Dependencies are inferred from the claim text.