1. A spill-proof container for holding food to be eaten by hand by children and adults, comprising:
a one-piece hollow bowl for holding food consisting of a top wall, a side wall, an open top, and a vertically disposed hollow tube centrally located through said top wall and rotational threads located at bottom of said side wall;
a fitting over the aperture at the open top of the vertically disposed hollow tube for closing said vertically disposed hollow tube using a separate attachable snap-on upper cover;
bottom of side wall of said one-piece hollow bowl threaded for closing said one-piece hollow bowl with a separate bottom cover threaded for rotationally attachment;
a vertically disposed hollow tube that is cast as a part of the one-piece hollow bowl; and
a vertically disposed hollow tube that is an integrated part of the one-piece hollow bowl the diameter of which is large enough to accommodate the hand and lower arm of a child.
2. The spill-proof container of claim 1, wherein diameter of said vertically disposed hollow tube varies only to accommodate snap-on upper cover at open top of said hollow tube.
3. The spill-proof container of claim 1, wherein said vertically disposed hollow tube is inwardly curved at lower panel aperture.
4. The spill-proof container of claim 1, wherein said separate attachable snap-on upper cover provides a means for preventing spillage from said container.
5. A method of spill-proofing a container filled with dry food and allowing said dry food to be reached without spilling said food by providing:
a one-piece hollow bowl consisting of a top wall, a side wall, an open top, and a vertically disposed hollow tube centrally located through said top wall and rotational threads located at bottom of said side wall;
a separate attachable snap-on upper cover at open top of said vertically disposed hollow tube;
a separate bottom cover threaded to rotationally attach to threaded bottom of side wall to close said one-piece hollow bowl;
a vertically disposed hollow tube as part of said one-piece hollow bowl cast with a diameter to accommodate the hand and lower arm of a child.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A radiolucent window, comprising:
a film which transmits radiation; and
a plurality of ribs formed on one face of the film,
wherein the plurality of ribs include
a plurality of first ribs formed radially with a center at the predetermined one point.
2. The radiolucent window according to claim 1,
wherein the plurality of ribs include
at least one second rib, which is formed to intersect the plurality of first ribs and the number of which is smaller than the plurality of first ribs.
3. The radiolucent window according to claim 1,
wherein the plurality of ribs include
a third rib which is formed to intersect the plurality of first ribs and has a smaller height from the one face than the plurality of first ribs.
4. The radiolucent window according to claim 1,
wherein the plurality of ribs include
a plurality of fourth ribs formed parallel to any of the plurality of first ribs.
5. The radiolucent window according to claim 1,
wherein a larger number of ribs are formed in a region on the one face far from the predetermined one point than in a region close to the predetermined one point.
6. The radiolucent window according to claim 1,
wherein the one face includes:
a first region in the vicinity of the predetermined one point; and
a second region at a greater distance from the predetermined one point than the first region,
a mesh rib is formed in the first region, and
the plurality of first ribs are formed in the second region.
7. A radiation detector comprising:
a radiolucent window according to claim 1; and
an element for detecting radiation transmitted through the radiolucent window.
8. A radiation detection apparatus comprising:
an irradiation unit for irradiating a sample with a beam; and
a radiation detector for detecting radiation generated from a part on the sample irradiated with the beam,
wherein the radiation detector includes:
a radiolucent window according to claim 1; and
an element for detecting radiation transmitted through the radiolucent window.
9. The radiation detection apparatus according to claim 8,
wherein the radiation detector has a through-hole which allows passage of the beam, and
one point at a center of a plurality of first ribs radially formed in the radiolucent window is included in the through-hole.