Title:
調整可能スプリンクラヘッドライザ
Document Type and Number:
Japanese Patent JP5386345
Kind Code:
B2
Abstract:
An apparatus for lengthening an extendible pipe comprised of first and second pipe portions having an interior includes a cylinder having an end wall and an open end connected to the first pipe portion. A piston is received in slidable and sealable engagement with the cylinder and is connected to the second pipe portion. The piston, cylinder and end wall define a chamber that is physically isolated from the interior of the pipe. Introduction of a control fluid into the chamber displaces the piston relative to the cylinder so as to lengthen the pipe. The apparatus above may be applied to a sprinkler head riser apparatus and buried as part of an in-ground sprinkler system.
Inventors:
Steward, Donald George
Bandecker Cove, Jordy Wayne
Bandecker Cove, Jordy Wayne
Application Number:
JP2009503382A
Publication Date:
January 15, 2014
Filing Date:
April 04, 2007
Export Citation:
Assignee:
Steward, Donald George
International Classes:
F16L27/12; B05B3/04; B05B15/68
Domestic Patent References:
| JP60183393A | ||||
| JP3115062U | ||||
| JP52105115U | ||||
| JP52034412U | ||||
| JP63018694U |
Attorney, Agent or Firm:
Hiroshi Kobayashi
Norio Omori
Akutsu Katsuhisa
Yasuhito Suzuki
Norio Omori
Akutsu Katsuhisa
Yasuhito Suzuki
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