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US 9,868,005 B2Granted
Sprinkler skipping shield with improved airflow
AssigneeThe Viking Corporation
InventorsBrian S. Green, Lindsay M. Barker
Life of this patent
Estimating the term…
Abstract
A fire protection sprinkler is provided with a skipping shield having air flow passages therethrough to reduce the negative impact that the shield has on the thermal response of the sprinkler. By providing holes, slots, louvers, or mesh to the skipping shield, water from adjacent flowing sprinklers can still be blocked from impinging on the thermal element. The shield will block water but allow hot gas from the fire to flow through the shield thereby improving the response time of the thermal element.
Claims8
A fire protection sprinkler, comprising:
- a body including a fluid passage therethrough;
- a pair of frame arms extending from said body;
- a deflector mounted to said pair of frame arms at a fixed unmovable position relative to said body;
- a heat responsive trigger supporting a plug member over an outlet of said fluid passage;
- and
- a cylindrical shield surrounding said heat responsive trigger and including a plurality of axially spaced rows each including a plurality of circumferentially spaced unobstructed holes in the cylindrical shield for allowing airflow through said cylindrical shield, wherein said cylindrical shield is supported by a plurality of spaced support arms extending radially inward and attached to a hub which is attached to said body, wherein an entirety of said cylindrical shield is axially spaced along an axis of the cylindrical shield from said deflector.
3 more elements
A fire protection sprinkler, comprising:
- a body including a fluid passage therethrough;
- a pair of frame arms extending from said body;
- a deflector mounted to said pair of frame arms at a fixed position relative to said body;
- a heat responsive trigger supporting a plug member over an outlet of said fluid passage;
- and
- a cylindrical shield at least partially surrounding said heat responsive trigger and including a plurality of axially spaced rows each including a plurality of circumferentially spaced elongated, horizontal closed-ended slots therein for allowing airflow through said cylindrical shield, said plurality of axially spaced rows being side-by-side in an axial direction along an axis of the cylindrical shield, wherein an entirety of said cylindrical shield is axially spaced along the axis of the cylindrical shield from said deflector.
3 more elements
Dependencies are inferred from the claim text.