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US 11,745,210 B2Granted
Pop-out sprinkler with vacuum actuated push-back
AssigneeMarioff Corporation Oy
InventorNazar Krutskevych
Life of this patent
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Abstract
Disclosed is a sprinkler system including a controller, wherein when the sprinkler system is in a pressurized mode, the controller is configured for: rendering a first determination to transition the sprinkler system to a standby mode, and executing a first communication with a vacuum pump based on the first determination, the first communication directing the vacuum pump to activate, whereby fluid is drained from the sprinkler system.
Claims10
A sprinkler system comprising:
- a sprinkler head, wherein the sprinkler head is a concealed frangible bulb pendant sprinkler head;
- and
- a controller,
- wherein:
- when the sprinkler system is in a pressurized mode, the controller is configured for:
- rendering a first determination to transition the sprinkler system to a standby mode;
- and
- executing a first communication with a vacuum pump based on the first determination, the first communication directing the vacuum pump to activate, whereby fluid is drained from the sprinkler system into a drain,
- wherein:
- a shutoff valve connects a first vessel with a second vessel, the first vessel containing gas, and the second vessel containing fluid;
- the sprinkler head and the vacuum pump are fluidly connected to a downstream side of the shutoff valve, and the vacuum pump is fluidly connected to a downstream side of the sprinkler head;
- and
- wherein:
- when the sprinkler system is in the pressurized mode, the sprinkler head is deployed, and
- when the vacuum pump is activated, vacuum pressure retracts the sprinkler head.
12 more elements
A method of controlling a sprinkler system with a controller,
- wherein the sprinkler system includes a sprinkler head, wherein the sprinkler head is a concealed frangible bulb pendant sprinkler head,
- wherein when the sprinkler system is in a pressurized mode, the method comprises:
- rendering a first determination to transition the sprinkler system to a standby mode, and
- executing a first communication with a vacuum pump based on the first determination, the first communication directing the vacuum pump to activate, whereby fluid is drained from the sprinkler system into a drain,
- wherein:
- a shutoff valve connects a first vessel with a second vessel, the first vessel containing gas, and the second vessel containing fluid;
- the sprinkler head and the vacuum pump are fluidly connected to a downstream side of the shutoff valve, and the vacuum pump is fluidly connected to a downstream side of the sprinkler head;
- and
- wherein:
- when the sprinkler system is in the pressurized mode, the sprinkler head is deployed, and
- when the vacuum pump is activated, vacuum pressure retracts the sprinkler head.
8 more elements
Dependencies are inferred from the claim text.