Sprinkler with variable arc and flow rate and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Mar 18, 2014
Grant Date -
Nov 22, 2012
app pub date -
Jul 31, 2012
filing date -
May 29, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A variable arc sprinkler head or nozzle may be set to numerous positions to adjust the arcuate span of the sprinkler. The sprinkler head includes an arc adjustment valve having two portions that helically engage each other to define an opening that may be adjusted at the top of the sprinkler to a desired arcuate length. The arcuate length may be adjusted by pressing down and rotating a deflector to directly actuate the valve without the need for a hand tool. A method of irrigation is also provided involving moving the deflector between an arc adjustment position and an operational, irrigation position. The sprinkler head may also include a flow rate adjustment valve that may be adjusted by actuation or rotation of an outer wall portion of the sprinkler. Rotation of the outer wall portion causes a flow control member to move axially to or away from an inlet.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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RAIN BIRD CORPORATION | 970 WEST SIERRA MADRE AVENUE AZUSA CA 91702 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Hunnicutt, Steven Brian | Vail, US | 5 | 254 |
# of filed Patents : 5 Total Citations : 254 | |||
Walker, Samuel | Green Valley, US | 4 | 26 |
# of filed Patents : 4 Total Citations : 26 |
Cited Art Landscape
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Patent Citation Ranking
- 19 Citation Count
- B05B Class
- 77.37 % this patent is cited more than
- 11 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 18, 2025 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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 |
Full Text

Legal Events
Date | Code | Event | Description |
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Apr 11, 2012 | FPAY | FEE PAYMENT | year of fee payment: 12 |
Dec 17, 2009 | AS | ASSIGNMENT | free format text: NUNC PRO TUNC ASSIGNMENT;ASSIGNOR:ALBERTA RESEARCH COUNCIL INC.;REEL/FRAME:025499/0106 Owner name: ALBERTA INNOVATES - TECHNOLOGY FUTURES, CANADA Effective Date: Dec 17, 2009 |
Apr 11, 2008 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Apr 22, 2004 | FPAY | FEE PAYMENT | year of fee payment: 4 |
May 08, 2001 | CC | CERTIFICATE OF CORRECTION | |
Oct 24, 2000 | I | Issuance | |
Oct 06, 2000 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Mar 23, 2000 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ALBERTA SCIENCE, RESEARCH AND TECHNOLOGY AUTHORITY;REEL/FRAME:011322/0524 Owner name: ALBERTA RESEARCH COUNCIL INC., CANADA Effective Date: Mar 23, 2000 free format text: CHANGE OF NAME;ASSIGNOR:ALBERTA RESEARCH COUNCIL;REEL/FRAME:011474/0341 Owner name: ALBERTA SCIENCE, RESEARCH AND TECHNOLOGY AUTHORITY Effective Date: Mar 23, 2000 |
Sep 18, 1998 | F | Filing | |
Sep 18, 1998 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GARVER, THEODORE M.;BOEGH, KENNETH;REEL/FRAME:009468/0383;SIGNING DATES FROM 19980911 TO 19980915 Owner name: ALBERTA RESEARCH COUNCIL, CANADA |
Sep 18, 1997 | PD | Priority Date |

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