Pressure operated valve

A pressure operated valve comprising:

• (a) a cylindrical housing having a groove therein;
• (b) sleeve valve means for controlling flow between outside and inside said housing releasably connected in said housing, said sleeve valve means including:
• a cylindrical body having seals thereon for sealingly engaging said housing,
• openings through said body wall,
• lugs mounted for lateral movement in said openings,
• flow passages through said body wall, and
• a lower internal shoulder therein,
• a valve sleeve slidably mounted in said body,
• a ring releasably positioned in said body around said valve sleeve,
• said sleeve valve having a sealing surface therein,
• a seal thereon for sealingly engaging said body,
• smaller and larger diameter surfaces thereon,
• flow passages through said valve sleeve wall,
• a seal above and a seal below said flow passages,
• a latch ring contracted into said lower groove,
• said valve sleeve releasably positioned in an open position in said body where said body flow passages and said valve sleeve flow passages are aligned permitting flow between outside and inside said housing and said valve sleeve larger diameter surface holds said lugs engaged in said housing internal groove, connecting said body to said housing,
• said valve sleeve moveable downwardly to a closed position, preventing flow between outside and inside said housing by applying pressure in said housing on a ball sealingly engaging the sealing surface in said valve sleeve, where said latch ring has sprung out under said lower body shoulder latching the valve sleeve in said closed position,
• said valve sleeve further moveable by application of greater pressure in said housing to move said smaller diameter surface inside said lugs permitting said lugs to disengage said housing internal groove disconnecting said sleeve valve means body from said housing and expending said sleeve valve means from said housing.