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US 11,767,943 B2Granted
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.
Claims14
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 a portion of the pipe such that a cavity is formed between the vent box and the pipe such cavity directly containing the leak;
- opening the vent of the vent box while the sealant is curing;
- 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, directly into the area of the pipe containing the leak, 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
A method of curing a leak in a steam pipe, comprising:
- providing a vent box having a vent for opening and closing;
- securing the vent box to the pipe;
- applying sealant directly to the leak in the pipe through an injection port in the vent box;
- opening the vent of the vent box while the sealant is curing;
- and
- waiting for the sealant to cure.
3 more elements
Dependencies are inferred from the claim text.