초록 ▼

An apparatus capable of retaining a shiftable valve member in an open position, the shiftable valve member mounted in a valve housing and being moveable between at least one open and at least one closed position relative to a longitudinal bore extending through the valve housing, includes a locking

An apparatus capable of retaining a shiftable valve member in an open position, the shiftable valve member mounted in a valve housing and being moveable between at least one open and at least one closed position relative to a longitudinal bore extending through the valve housing, includes a locking sleeve disposed in the valve housing. The locking sleeve is movable at least partially around the circumference of the bore from at least a first position to at least a second position. When the locking sleeve is disposed in the first position, the locking sleeve allows movement of the shiftable valve member between its open and closed positions. When the locking sleeve is disposed in the second position, the locking sleeve causes the shiftable valve member to be retained in an open position and prevents movement of the shiftable valve member into a closed position. At least one anchor is engageable with the locking sleeve and capable of at least temporarily holding the locking sleeve in at least one of its at least first and second positions.

대표청구항 ▼

An apparatus capable of retaining a shiftable valve member in an open position, the shiftable valve member mounted in a valve housing and being moveable between at least one open and at least one closed position relative to a longitudinal bore extending through the valve housing, includes a locking

An apparatus capable of retaining a shiftable valve member in an open position, the shiftable valve member mounted in a valve housing and being moveable between at least one open and at least one closed position relative to a longitudinal bore extending through the valve housing, includes a locking sleeve disposed in the valve housing. The locking sleeve is movable at least partially around the circumference of the bore from at least a first position to at least a second position. When the locking sleeve is disposed in the first position, the locking sleeve allows movement of the shiftable valve member between its open and closed positions. When the locking sleeve is disposed in the second position, the locking sleeve causes the shiftable valve member to be retained in an open position and prevents movement of the shiftable valve member into a closed position. At least one anchor is engageable with the locking sleeve and capable of at least temporarily holding the locking sleeve in at least one of its at least first and second positions. ipp; US-6056059, 20000500, Ohmer, 166/313; US-6062324, 20000500, Hipp; US-6065500, 20000500, Metcalfe, 138/118; US-6070671, 20000600, Cumming et al., 166/381; US-6074133, 20000600, Kelsey, 405/244; US-6078031, 20000600, Bliault et al., 219/607; US-6079495, 20000600, Ohmer, 166/313; US-6085838, 20000700, Vercaemer et al., 166/277; US-6089320, 20000700, LaGrange, 166/313; US-6098717, 20000800, Bailey et al., 166/382; US-6102119, 20000800, Raines, 166/207; US-6109355, 20000800, Reid; US-6112818, 20000900, Campbell, 166/384; US-6135208, 20001000, Gano et al., 166/313; US-6142230, 20001100, Smalley et al.; US-6182775, 20010200, Hipp; US-6196336, 20010300, Fincher et al.; US-6226855, 20010500, Maine; US-6250385, 20010600, Mantaron, 166/207; US-6263968, 20010700, Freeman et al.; US-6263972, 20010700, Richard et al.; US-6283211, 20010900, Vloedman; US-6315043, 20011100, Farrant et al.; US-6328113, 20011200, Cook; US-6354373, 20020300, Vercaemer et al.; US-6419033, 20020700, Hahn et al.; US-6446724, 20020900, Baugh et al.; US-6454013, 20020900, Metcalfe; US-6457532, 20021000, Simpson; US-6457533, 20021000, Metcalfe; US-6457749, 20021000, Heijnen; US-6460615, 20021000, Heijnen; US-6470966, 20021000, Cook et al., 166/207; US-6497289, 20021200, Cook et al., 166/380; US-20010002626, 20010600, Frank et al., 175/057; US-20010020532, 20010900, Baugh et al.; US-20010047866, 20011200, Cook et al., 166/277; US-20020011339, 20020100, Murray; US-20020014339, 20020200, Ross; US-20020062956, 20020500, Murray et al.; US-20020066578, 20020600, Broome; US-20020070023, 20020600, Turner et al.; US-20020070031, 20020600, Voll et al.; US-20020079101, 20020600, Baugh et al.; US-20020092654, 20020700, Coronado et al.; US-20020139540, 20021000, Lauritzen; US-20020144822, 20021000, Hackworth et al.; US-20020148612, 20021000, Cook et al.