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Patent Searching and Data


Title:
SPRINKLING NOZZLE
Document Type and Number:
Japanese Patent JP2006043520
Kind Code:
A
Abstract:

To provide a sprinkling nozzle which has excellent practicability, being capable of preventing wasteful sprinkling, a possible cause of high costs, and reducing the risk of freezing of the road surface by leaked water by preventing leakage of water.

The nozzle has the first valve portion 8 communicating with a water-supplying pipe 6 and opened or closed with the first opening and closing valve and a sprinkling hole 9 communicating with the first valve portion 8 arranged in the upper part of the nozzle and embedded so that the sprinkling hole 9 is exposed to the road surface. A control space 1 is formed between the first valve section 8 and the water-supplying pipe 6: the downstream side of the control space 1 communicates with the first valve portion 8, and the upstream side communicates with the water-supplying pipe 6 through the second valve portion 2 opened or closed with the second opening and closing valve. The second valve is structured so as to open the second valve portion 2 when a specified water pressure is applied to its upstream side.


Inventors:
IKENO MASASHI
Application Number:
JP2004224951A
Publication Date:
February 16, 2006
Filing Date:
July 30, 2004
Export Citation:
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Assignee:
KOWA CO
International Classes:
B05B1/00; E01H3/04
Attorney, Agent or Firm:
Tsuyoshi Yoshii
Masae Yoshii