基本信息:
- 专利标题： PRESSURE COOKER INTERLOCK
- 专利标题（中）：压力机互锁
- 申请号：PCT/US1982000129 申请日：1982-02-01
- 公开(公告)号：WO1982002699A1 公开(公告)日：1982-08-19
- 发明人： NAT PRESTO IND INC , OTT RICHARD B
- 申请人： NAT PRESTO IND INC
- 专利权人： NAT PRESTO IND INC
- 当前专利权人： NAT PRESTO IND INC
- 优先权： US233842 19810212; US316934 19811030
- 主分类号： B65D45/00
- IPC分类号： B65D45/00
摘要：
Pressure cooker (20) having a safety interlock including a resilient gasket (23) interposed between flat sealing surfaces (26, 34) of a receptacle (21) and a cover (22), and configured to form a seal against the surfaces when they are spaced by a first distance, and to prevent formation of the seal when the surfaces are spaced by a second, smaller distance. The receptacle and cover are provided with interlocking lugs (27) which are engageable in two different conditions to determine the first and second distances respectively. The gasket comprises an annular body (45) having inwardly directed, axially, diverging leg portions (46, 47) terminating in lip portions (50, 51) to seal against the sealing surfaces, and has faces with peripherally spaced bosses (54, 55) engageable by the sealing surfaces when at the second distance to decrease the divergence of the leg portions and so prevent seal formation. Y-shaped, V-shaped, and W- shaped cross sections for the gasket are shown.
摘要（中）：
具有安全互锁的压力锅（20）包括介于容器（21）的平面密封表面（26,34）和盖（22）之间的弹性垫圈（23），并且构造成当它们 间隔第一距离，并且当表面间隔第二较小距离时，防止形成密封。 插座和盖子设置有互锁凸耳（27），它们可分别接合在两个不同的条件中以确定第一和第二距离。 垫圈包括一个环形体（45），该环形体（45）具有向内的轴向发散的腿部（46,47），该腿部终止于唇部（50,51）以密封密封表面，并具有面向周向间隔开的凸起（54,55 ）在第二距离处可通过密封表面接合，以减小腿部的发散度，从而防止形成密封。 显示垫圈的Y形，V形和W形截面。