Sprinkler head

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11511144
APP PUB NO 20210260423A1
SERIAL NO

17256747

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A sprinkler head includes a main body having, thereinside, a nozzle connected to a water supply pipe, a deflector having a disk shape with a plurality of slits in an edge portion, where the deflector is disposed so as to intersect with a central axis of the nozzle, and a support member configured to connect the main body to the deflector. A circular arc shaped first convex portion is formed in a direction from the center of the deflector to a position obtained by rotating the position of the support member by 90 degrees around the center, circular arc shaped first slits are disposed on either side of the convex portion, and the shape of a portion from one of the first slits to the other via the first convex portion is corrugated.

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First Claim

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Family

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Patent Owner(s)

  • SENJU SPRINKLER CO. LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koiwa, Yasuaki Tokyo, JP 36 273

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Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 May 29, 2026
7.5 Year Payment $3600.00 $1800.00 $900.00 May 29, 2030
11.5 Year Payment $7400.00 $3700.00 $1850.00 May 29, 2034
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Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00