Title:
INSTANTANEOUSLY WEAKENING APPARATUS FOR SUCTION FORCE
Document Type and Number:
Japanese Patent JP3041347
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus which enables obtaining of equal effect to a temporary stoppage of suction immediately and instantaneously returning of a suction force of a suction pipe at any time to the original position by the same operation by performing an operation in a slight range by a lighter force to instantaneously weaken the suction force of the suction pipe very much, eventually almost cutting an inertial suction flow.
SOLUTION: A third suction port 4 is opened in addition to connection ports 2 and 3 with a suction pipe within a small chamber 1 and mobile common plugs 5 and 6 are so arranged as to reciprocate along an internal wall of the small chamber 1 between this suction port and a suction port 2 on the sucking side to open one plug while the other plug is closed. As a result, for the weakening of the plugs, the suction port 2 on the sucking port side is closed by slightly moving an external knob 9 to block the suction while the suction port 4 is opened to disperse a suction force thereby realizing the weakening as required. So, operation is carried out lightly utilizing a negative pressure of suction while to achieve the required weakening, an elastic body with a proper elasticity is assembled.
Inventors:
Keiji Komori
Application Number:
JP30545996A
Publication Date:
May 15, 2000
Filing Date:
October 11, 1996
Export Citation:
Assignee:
Keiji Komori
International Classes:
A47L9/24; F16K3/24; F16K24/00; (IPC1-7): A47L9/24; F16K3/24; F16K24/00
Domestic Patent References:
| JP7204139A | ||||
| JP4958169U | ||||
| JP4628701Y1 |