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1. 发明申请

WO1996023151A1 IMPROVED FLUID PRESSURE ACTIVATED PISTON RETURN SPRING SEAL 审中-公开
标题翻译：改进的流体动力活塞活塞弹簧密封
公开(公告)号：WO1996023151A1
公开(公告)日：1996-08-01
申请号：PCT/US1995015755
申请日：1995-12-05
申请人： GREENE, TWEED OF DELAWARE, INC.
发明人： GREENE, TWEED OF DELAWARE, INC. , BURKE, John, A.
IPC分类号： F16J15/32
CPC分类号： F16J15/164
摘要： An improved fluid pressure activated piston return spring seal element for installation in an annular groove in a piston housing is disclosed. The annular groove has first and second radial side walls, an axial base wall, and a mouth. The seal includes an annularly shaped element which in toroidal cross section has first (24) and second (40) oppositely situated radial faces and an axial face (42). The first radial face (24) defines a pressure side of the element, and includes a notch (26) extending inwardly with respect to the element and a base wall pressure sealing lip (28). The axial face (42) partially protrudes through the mouth of the groove and has a piston pressure sealing lip (44), a first angled surface (48) extending from the piston pressure sealing lip at a first angle to an intermediate point (50), and a second angled surface (52) extending from the intermediate point at a second angle larger than the first angle toward the second radial face (40). When the seal element is installed in the groove, the piston pressure sealing lip is outside the groove and proximate the first radial face and the intermediate point is proximate the mouth of the groove. The piston pressure sealing lip and the piston move from a relaxed to a pressurized position when sufficient fluid pressure is applied to the pressure side, and return to the relaxed position when the fluid pressure is removed.
摘要翻译：公开了一种用于安装在活塞壳体中的环形槽中的改进的流体压力活化活塞复位弹簧密封元件。环形槽具有第一和第二径向侧壁，轴向底壁和嘴。密封件包括环形元件，其在环形横截面中具有第一（24）和第二（40）相对定位的径向面和轴向面（42）。第一径向面（24）限定元件的压力侧，并且包括相对于元件向内延伸的凹口（26）和底壁压力密封唇缘（28）。轴向面（42）部分地突出穿过槽口，并具有活塞压力密封唇（44），从活塞压力密封唇以第一角度延伸到中间点（50）的第一倾斜表面（48）以及从所述中间点以大于所述第一角度的第二角度朝向所述第二径向面（40）延伸的第二倾斜表面（52）。当密封元件安装在凹槽中时，活塞压力密封唇缘在凹槽外部并且靠近第一径向面并且中间点靠近凹槽的口。当足够的流体压力施加到压力侧时，活塞压力密封唇缘和活塞从松弛状态移动到加压位置，并且当流体压力被移除时返回到松弛位置。

2. 发明申请

WO1996021814A1 ANNULAR SEAL ELEMENT AND DOVETAIL GROOVE 审中-公开
标题翻译：环形密封元件和DOVETAIL GROOVE
公开(公告)号：WO1996021814A1
公开(公告)日：1996-07-18
申请号：PCT/US1995012535
申请日：1995-10-02
申请人： GREENE, TWEED OF DELAWARE, INC.
发明人： GREENE, TWEED OF DELAWARE, INC. , BURNS, James, W. , BURKE, John, A.
IPC分类号： F16J15/16
CPC分类号： F16J15/32 , F16J15/062
摘要： A seal element for installation in an annular dovetail groove. The groove including a base portion (18) and side wall portions (14, 16), with arcuate transition portions (19) therebetween. The seal ring having mold flashing portions (38a, 38b) that are located away from contact with the fluid being sealed.
摘要翻译：用于安装在环形燕尾槽中的密封元件。所述凹槽包括基部（18）和侧壁部分（14,16），其间具有弓形过渡部分（19）。所述密封环具有远离与要被密封的流体接触的模具闪蒸部分（38a，38b）。

3. 发明授权

EP0753115B1 ANNULAR SEAL ELEMENT AND DOVETAIL GROOVE 有权
标题翻译：环形密封元件和SCHWALBENSCHWANZNUTE
公开(公告)号：EP0753115B1
公开(公告)日：2001-04-04
申请号：EP95934565.3
申请日：1995-10-02
申请人： GREENE, TWEED OF DELAWARE, INC.
发明人： BURNS, James, W. , BURKE, John, A.
IPC分类号： F16J15/16 , F16J15/32 , F16J15/06
CPC分类号： F16J15/32 , F16J15/062
摘要： A seal element for installation in an annular dovetail groove. The groove including a base portion (18) and side wall portions (14, 16), with arcuate transition portions (19) therebetween. The seal ring having mold flashing portions (38a, 38b) that are located away from contact with the fluid being sealed.

4. 发明公开

EP0753115A1 ANNULAR SEAL ELEMENT AND DOVETAIL GROOVE 有权
标题翻译：环形密封元件和DOVETAIL凹槽
公开(公告)号：EP0753115A1
公开(公告)日：1997-01-15
申请号：EP95934565.0
申请日：1995-10-02
申请人： GREENE, TWEED OF DELAWARE, INC.
发明人： BURNS, James, W. , BURKE, John, A.
IPC分类号： F16J15
CPC分类号： F16J15/32 , F16J15/062
摘要： A seal element for installation in an annular dovetail groove. The groove including a base portion (18) and side wall portions (14, 16), with arcuate transition portions (19) therebetween. The seal ring having mold flashing portions (38a, 38b) that are located away from contact with the fluid being sealed.
摘要翻译：用于安装在环形燕尾槽中的密封元件。凹槽包括基部（18）和侧壁部分（14,16），其间具有弓形过渡部分（19）。密封环具有模具防水部分（38a，38b），其位置远离被密封的流体的接触。

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