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US 2022/0186872 A1Published application
Vent box method and appartus
AssigneeXcel Energy
InventorDavid Carlisle
Life of this patent
Estimating the term…
Abstract
The present invention relates to a method and apparatus for repairing a leak in a pressurized pipe, and more particularly to a vent box for use in repairing a leak in a pipe carrying pressurized steam. The sealant is applied to the leak, the vent box is in place over the leak, and the vent is opened during the curing process.
Claims13
A method of curing a leak in a steam pipe, comprising:
- providing a vent box having a vent for opening and closing;
- applying sealant to the interior surfaces of the vent box;
- securing the vent box to the pipe;
- opening the vent of the vent box;
- and
- waiting for the sealant to cure.
3 more elements
A method of curing a leak in a steam pipe, comprising:
- providing a vent box comprising a first half and a second half, a vent in one of the halves, and a valve connected to the vent;
- releasably securing the vent box to the pipe by connecting the first half and second half to each other with bolts and nuts so the vent box surrounds the leak;
- injecting sealant into the interior surfaces of the vent box through an injection port in one of the two halves of the vent box;
- opening the valve of the vent of the vent box;
- and
- waiting for the sealant to cure.
3 more elements
Dependencies are inferred from the claim text.