Patent ID: 7255380
Filing Date: 2007-08-14
Classification: G01N

Abstract:
1. A bailer, comprising: a cylindrical main body; a valve housing with tapered sidewalls secured to a leading end of said cylindrical main body; said cylindrical main body having a trailing end adapted to be engaged by a means for lowering said bailer into a body of liquid fluid and for raising said bailer from said body of liquid fluid; an annular bead formed in a leading end of said tapered sidewalls of said valve housing, said annular bead being formed in an external surface of said valve housing tapered sidewalls; a check valve disposed in said valve housing; a bottom-emptying device having a bottom wall and tapered sidewalls mounted about a periphery of said bottom wall; said bottom-emptying device adapted to fully receive said valve housing; said leading end of said valve housing tapered sidewalls disposed in abutting relation to said bottom wall when said valve housing is fully received within said bottom-emptying device; said tapered sidewalls of said bottom-emptying device overlying the tapered sidewalls of said valve housing when said valve housing is fully received within said bottom-emptying device; an annular groove formed in an interior surface of said tapered sidewalls of said bottom-emptying device, said annular groove being contiguous to said bottom wall so that said annular bead fits within said annular groove when said valve housing is fully received within said bottom-emptying device, said annular groove removably interlocking with said annular bead and securing said bottom-emptying device to said valve housing; an aperture formed in said bottom wall; a downspout depending from said bottom wall, said downspout having a lumen in fluid communication with said aperture; a peg mounted in upstanding relation to said bottom wall, said peg being positioned adjacent said aperture; whereby said peg unseats said check valve when said bottom-emptying device is removably secured to said valve housing so that liquid fluid within said bailer flows through said downspout.