基本信息:
- 专利标题： DRAUGHT BALANCED DOOR SYSTEM
- 专利标题（中）：平衡门系统
- 申请号：PCT/GB1990000613 申请日：1990-04-20
- 公开(公告)号：WO1990012946A1 公开(公告)日：1990-11-01
- 申请人： JESSEL, Richard, Victor
- 专利权人： JESSEL, Richard, Victor
- 当前专利权人： JESSEL, Richard, Victor
- 优先权： GB8908912.2 19890420
- 主分类号： E06B05/12
- IPC分类号： E06B05/12
摘要：
A door system (11, 12, 21, 22), in a frame (10, 20), that uses any wind pressure to keep the door shut, insted of blowing it open. This is achieved by-when at its limit of travel in the shut position-presenting a greater effective surface area on (21) than on (22). The other side of the door system has the same properties.