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    • 38. 发明专利
    • DENTAL EQUIPMENT WITH LIQUID TANK
    • JP2002320628A
    • 2002-11-05
    • JP2002082954
    • 2002-03-25
    • FERTON HOLDING SA
    • BEERSTECHER LUTZDECOSTERD CHRISTIAN
    • A61C1/07A61C1/00A61C3/03A61C19/00
    • PROBLEM TO BE SOLVED: To provide a means for conducting a simple series of operations that is connected to a liquid tank with a dental care equipment of a simplified structure to supply the liquid to a dental handpiece to be handled by controlling a valve unit. SOLUTION: The dental equipment is provided with a means for connecting a tank filled with the liquid to be supplied for the dental handpiece, wherein the liquid in the tank is supplied for the dental handpiece by an absorption pump having an absorption tube connected with the member for receiving a coupling leaf of the liquid tank by controlling a valve unit. The liquid tank is equipped with one-way valve 17 given an additional force by a stoppage spring 24 toward a blockade position on the valve seat 25 of the coupling leaf. The coupling leaf is provided with one-way valve 18 for blasting an air toward an upward of the blasting outlet 33 and the one-way blasting valve 18 compensates a negative pressure that occurs inside the liquid tank when the one way valve 17 is released to supply the liquid for the handpiece out of the liquid tank.
    • 40. 发明专利
    • RELEASING APPARATUS FOR HIGH PRESSURE RELEASING OF LIQUID
    • JP2000245836A
    • 2000-09-12
    • JP36136299
    • 1999-12-20
    • FERTON HOLDING SA
    • MENNE ANDREAS
    • A61M5/14A61B17/32A61M5/142A61M5/20A61M5/30
    • PROBLEM TO BE SOLVED: To provide a releasing apparatus which enables protection of a liquid to be released from contamination along with cleaning and sterilization. SOLUTION: A releasing apparatus 1 adapted to release a liquid or a liquid containing solid particles under a high pressure is provided with a head unit 2 and a pressure chamber 11 which is interfaced by a working piston 14 while being released into a release opening at the final end thereof. When given an elastic impact at an end part opposite in the direction to the pressure chamber 11, the working piston 14 can transmit a compression wave, which in turn, works to deform an end part facing the pressure chamber 11 of the working piston 14 into the pressure chamber 11 for reducing the capacity of the pressure chamber 11. The reduction in the capacity of the pressure chamber 11 makes the capacity of the pressure chamber 11 remarkably smaller than the original capacity of the pressure chamber 11. A drive unit 22 is provided with a drive member which is accelerated traversing an acceleration part in the drive unit 22 to generate an elastic impact to be transmitted to the working piston 14.