Title:
WATER-FILM SCREEN FORMING NOZZLE
Document Type and Number:
Japanese Patent JP3639706
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a water-film screen forming nozzle by which an almost semicircular water-film screen capable of projecting an image without reducing the image even in the inside if a house where the distance of spouting water is limited.
SOLUTION: The front end of a cylinder 3 is closed by a backplate, the upper-half peripheral wall above the horizontal plane 5 passing through the center 0 of the cylinder 3 is notched close to the backplate to form an opening 6, and the cross-sectional area of flow facing the opening of the downstream nozzle part in the cylinder 3 is formed by a V-sectional small-area part 3X below the horizontal plane 5 and a semicircular-sectioned large-area part 3×1 above the horizontal plane 5.
Inventors:
Sadahiko Nishizawa
Application Number:
JP33055197A
Publication Date:
April 20, 2005
Filing Date:
December 01, 1997
Export Citation:
Assignee:
Kubota Corporation
International Classes:
G03B21/60; B05B1/04; B05B17/08; G03B21/608; G09F19/18; (IPC1-7): B05B1/04; B05B17/08; G03B21/60; G09F19/18
Domestic Patent References:
| JP6000425A | ||||
| JP5040313A | ||||
| JP8131900A |
Attorney, Agent or Firm:
Koichi Suzue
Shoji Suzue
Shoji Suzue
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