Air-tight bailer system
OwnerDavid W. Prattinventor
Life of this patent
Estimating the term…
Abstract
An air-tight bailer is filled completely and closed at its open upper end with a flat cap so that no ambient air is trapped in the bailer. A mounting member to which a rope is secured for lowering and lifting the bailer is recessed with respect to the open upper end of the bailer so that it does not interfere with the cap. A disc-shaped protuberance formed on the bottom of the cap fills the recess. An annular groove around the recess receives the rim of the open upper end to enhance an air-tight seal between the cap and the open upper end. In a first embodiment, the bailer is emptied by piercing a thin membrane formed in the cap with a spout device having a trailing end in fluid communication with a container. A second embodiment eliminates the membrane and the spout device.
Claims14
A bailer, comprising:
- a top piece adapted to engage a main body of said bailer;
- said top piece having an open upper end of predetermined diameter;
- a mounting member disposed in spanning relation to said open end of said top piece;
- said mounting member adapted to be engaged by a rope means for lowering and lifting said bailer into and out of a body of liquid fluid;
- a closure means for closing said open upper end when said bailer is substantially full of liquid fluid;
- said closure means having a flat base that overlies said open upper end;
- and
- said closure means having sidewalls depending from said flat base that are adapted to engage an external surface of said top piece;
- whereby said closure means is secured to said top piece when said bailer is completely filled with said liquid fluid so that no air is trapped within said bailer.
A bailer, comprising:
- a main body of cylindrical configuration;
- a top piece having a lower end engaged to an upper end of said main body;
- a flat rim formed by an upper end of said top piece;
- a bottom piece having an upper end engaged to a lower end of said main body;
- a flat rim formed by a lower end of said bottom piece;
- a first closure means having a flat base that fits squarely against said flat rim of said top piece;
- a second closure means having a flat base that fits squarely against said flat rim of said bottom piece;
- said first and second closure means sharing a common size and configuration;
- whereby ambient air is restricted from entering into a hollow interior when said hollow interior is filled with liquid fluid and said first and second closure means are secured to said top piece flat rim and said bottom piece flat rim, respectively.
Dependencies are inferred from the claim text.