发明名称 |
Method for making a glass precision valve |
摘要 |
A glass precision valve for use in liquid measuring instruments, the valve comprising a valve body having a conically sharpened head slidably accommodated in a bulged portion, which includes glass tubes at opposite ends, a valve seat provided by the inside wall of the bulged portion, the surface of the valve seat allowing the conically sharpened head of the valve body to be slidable in a liquid-tight manner, and the valve body including a ring-shaped groove around its axis, the ring-shaped groove being filled with an elastic material.
|
申请公布号 |
US4671915(A) |
申请公布日期 |
1987.06.09 |
申请号 |
US19850781728 |
申请日期 |
1985.09.30 |
申请人 |
TOA MEDICAL ELECTRONICS COMPANY LIMITED;THOM, REINHARD |
发明人 |
FUJIMOTO, KEIJI;THOM, REINHARD |
分类号 |
F16K1/34;B23P15/00;C03B23/04;F16K1/38;F16K5/02;F16K15/02;F16K27/02;(IPC1-7):B29C39/10;B29C39/08;B24B15/04;F16K5/16 |
主分类号 |
F16K1/34 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|