首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
Bi-directional gate valve
摘要
A gate valve improvement including a seat-to-body seal means for reliable bi-directional sealing, a port to bypass at least one of the seat-to-body seals, and means to plug the bypass port when the operation of this seal is desired.
申请公布号
US4824074(A)
申请公布日期
1989.04.25
申请号
US19860844884
申请日期
1986.03.27
申请人
BAUGH, BENTON F.
发明人
BAUGH, BENTON F.
分类号
F16K3/02;F16K39/04;(IPC1-7):F16K3/16
主分类号
F16K3/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
Improved information transmission system.
Piercing and sampling probe.
Magnetic developer, electrophotographic apparatus and recognition method of magnetic ink character.
Expandable bag.
Puffer type gas-insulated circuit breaker.
Single-step method for preparing polycarbonates from bischloroformates.
Process for the preparation of tablets mechanically stable and well-disintegrable, from small extrusion pellets with a high etofibrat content.
A rotary magnetic head apparatus.
Pneumatic tires.
罐头开启器
带有婴幼儿座斗或载物筐的自行车把
折叠式拾棉花凳
有键膨胀螺栓
直握曲柄两面攻乒乓球拍
家用地震报警器
医用双向输液阀
蝇蚊刷
小型轮胎后充气冷却装置
无级变速器
饰面砌墙砖