Title:
SUCTION VALVE FOR PREVENTING VACUUM BREAK
Document Type and Number:
Japanese Patent JP3640767
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a suction valve for preventing vacuum break in order to continue a liquid collecting work from other supply source smoothly without sucking air even when the tips of some hoses of multiple liquid suction hoses are exposed from the water surface in executing a liquid collecting work from multiple liquid supply sources by one vacuum device.
SOLUTION: A bellows tubular body 12 and a top-open shape liquid suction part 11 are arranged in opposite positions through a valve element 13 with float 14 and the liquid suction port 11, which is connected to the outside part, is formed in a connecting port 10 with a liquid suction hose 3. The valve element 13 is lowered by the action of a spring 16 in the atmosphere and the liquid suction port 11 is closed, and the valve element 13 is raised by the air in the bellows tubular body 12 and the buoyancy of a float 14 and the liquid suction port 11 is opened.
Inventors:
Nishimura Takeyuki
Application Number:
JP12505997A
Publication Date:
April 20, 2005
Filing Date:
April 28, 1997
Export Citation:
Assignee:
Tsurumi Manufacturing Co., Ltd.
International Classes:
F16K31/20; B60K15/077; F02M37/00; F04F10/00; F16K21/18; (IPC1-7): F16K31/20; B60K15/077; F02M37/00; F04F10/00; F16K21/18
Domestic Patent References:
| JP60127471U | ||||
| JP261177U | ||||
| JP5346613U |
Previous Patent: MANUFACTURE OF CAPACITOR OF SEMICONDUCTOR MEMORY ELEMENT
Next Patent: OPENING/SHUTTING BOX FOR VEHICLE
Next Patent: OPENING/SHUTTING BOX FOR VEHICLE