What is claimed is:
1. A diaphragm holder for pressure regulator of air tank used in diving, comprising:
a diaphragm seat being formed on an outer case of said pressure regulator for holding a rubber diaphragm therein, and being provided on an outer wall surface with a plurality of spaced raised rails;
a cover for closing onto a top of said diaphragm seat and being provided on an inner wall surface with a plurality of L-shaped grooves corresponding to said raised rails on said diaphragm seat, each of said L-shaped grooves including a wide groove portion and a narrow groove portion integrally extended from one side of said wide groove portion to communicate with the latter, said wide groove portion being adapted to receive said raised rail on said diaphragm seat when said cover is closed onto said diaphragm seat, and turning of said cover allowing said raised rails in said wide groove portions to slide into said narrow groove portions to lock said cover to said diaphragm seat; and
a soft push member fitted in said cover to locate at an outer side of said rubber diaphragm in said diaphragm seat when said cover is locked to said diaphragm seat.
2. The diaphragm holder for pressure regulator of air tank used in diving as claimed in claim 1, wherein each of said raised rails on said diaphragm seat is provided with a recess, and each of said narrow groove portions on said cover is provided with a protuberance corresponding to said recess, whereby said protuberances separately engage with said recesses when said cover is fully locked to said diaphragm seat.
3. The diaphragm holder for pressure regulator of air tank used in diving as claimed in claim 1, wherein said cover and said soft push member are integrally molded to form one integral body.
4. The diaphragm holder for pressure regulator of air tank used in diving as claimed in claim 1, wherein at least one of said cover and said soft push member is provided with openings.
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 self righting fluid containing container adapted to self-right itself when empty from a fully reclining position on a supporting surface having a center of gravity and comprising:
a base portion having a terminal end and a flat bottom at its terminal end and a hollow fluid holding interior;
a neck portion integral with said base portion providing a one-piece container having a throughbore, said neck portion having a diameter from one side to the other;
a tapered section having a throughbore interconnecting said throughbore through said neck portion to said interior of said base portion;
a cap closing off said neck portion, an integral outwardly extending peripheral flange having a diameter across the flange from one side to the other, said flange diameter being greater than the neck portion diameter of said neck portion mounted on said neck portion; and
a weighted member disposed in said base portion, the center of gravity of said container being located on one side of a critical line extending from a first point at an intersection of said base portion with said tapered section when said container is empty of fluid and is fully inclined on a supporting surface wherein said cap abuts against said supporting surface and said critical line extends generally normal to the plane of said supporting surface, said container having a centerline from said cap to said base portion, said center of gravity also being located along the centerline of said container, away from said critical line and toward said weighted member, said container movable to a self-righting position from its fully inclined position when empty, and wherein said critical line is vertical when the cap abuts against said supporting surface, wherein said base portion is a truncated hemispherical shaped section, the truncated base having a defined line where it interfaces the neck portion, and the neck portion from the defined interface line being a solely inwardly concave tapered curve from the interface line towards the centerline of the container as the neck is directed towards the cap.
2. In the container of claim 1 wherein said flange is integral with said cap.
3. In the container of claim 1, when said container is in its fully reclining position on its side on said supporting surface, the centerline of said container makes an angle a with a plane of said supporting surface, said critical line also making an angle a with a line extending from a second point of said container at said cap to an uppermost point where said tapered section intersects with said base portion when said container is inclined on said supporting surface.
4. In the container of claim 1 wherein said base portion is a truncated hemispherical shaped section.
5. In the container of claim 1 wherein said base portion has an outer surface and an inner surface, the outer surface of said base portion smoothly curves from said bottom up to the intersection with said tapered section.
6. A self righting fluid containing container adapted to self-right itself when empty from a fully reclining position on a supporting surface having a center of gravity and comprising:
a base portion having a terminal end and a flat bottom at its terminal end and a hollow fluid holding interior;
a neck portion integral with said base portion providing a one-piece container having a throughbore, said neck portion having a diameter from one side to the other;
a tapered section having a throughbore interconnecting said throughbore through said neck portion to said interior of said base portion;
a cap closing off said neck portion, such that the end of the cap is sealed without an aperture so as to be fluid tight fit with the neck, and fluid contents from the container cannot be expelled through the cap, and wherein the cap needs to be removed from the neck to permit fluid expulsion from the container, an integral outwardly extending peripheral flange having a diameter across the flange from one side to the other, said flange diameter being greater than the neck portion diameter of said neck portion mounted on said neck portion; and
a weighted member disposed in said base portion, the center of gravity of said container being located on one side of a critical line extending from a first point at an intersection of said base portion with said tapered section when said container is empty of fluid and is fully inclined on a supporting surface wherein said cap abuts against said supporting surface and said critical line extends generally normal to the plane of said supporting surface, said container having a centerline from said cap to said base portion, said center of gravity also being located along the centerline of said container, away from said critical line and toward said weighted member, said container movable to a self-righting position from its fully inclined position when empty, wherein said base portion is a truncated hemispherical shaped section, the truncated base having a defined line where it interfaces the neck portion, and the neck portion from the defined interface line being a solely inwardly concave tapered curve from the interface line towards the centerline of the container as the neck is directed towards the cap.
7. In the container of claim 6 wherein said flange is integral with said cap.
8. In the container of claim 6, when said container is in its fully reclining position on its side on said supporting surface, the centerline of said container makes an angle a with the plane of said supporting surface, said critical line also making an angle a with a line extending from a second point of said container at said cap to an uppermost point where said tapered section intersects with said base portion when said container is inclined on said supporting surface.
9. In the container of claim 6 wherein said base portion has an outer surface and an inner surface, the outer surface of said base portion smoothly curves from said bottom up to the intersection with said tapered section.
10. In the container of claim 6 said critical line is vertical when the cap abuts against said supporting surface.
11. A self righting fluid containing container adapted to self-right itself when empty from a fully reclining position on a supporting surface having a center of gravity and comprising:
a base portion having a terminal end and a flat bottom at its terminal end and a hollow fluid holding interior;
a neck portion integral with said base portion providing a one-piece container having a throughbore, said neck portion having a diameter from one side to the other;
a tapered section having a throughbore interconnecting said throughbore through said neck portion to said interior of said base portion;
a cap closing off said neck portion,
a sprayer portion affixed to the cap, the sprayer being normally sealed so as to be fluid tight fit with the cap, and fluid contents from the container cannot be expelled through the sprayer, and wherein the sprayer portion includes a trigger for finger activation to permit fluid expulsion from the container, an integral outwardly extending peripheral flange having a diameter across the flange from one side to the other, said flange diameter being greater than the neck portion diameter of said neck portion mounted on said neck portion; and
a weighted member disposed in said base portion, the center of gravity of said container being located on one side of a critical line extending from a first point at an intersection of said base portion with said tapered section when said container is empty of fluid and is fully inclined on a supporting surface wherein said cap abuts against said supporting surface and said critical line extends generally normal to the plane of said supporting surface, said container having a centerline from said cap to said base portion, said center of gravity also being located along the centerline of said container, away from said critical line and toward said weighted member, said container movable to a self-righting position from its fully inclined position when empty, wherein said base portion is a truncated hemispherical shaped section, the truncated base having a defined line where it interfaces the neck portion, and the neck portion from the defined interface line being a solely inwardly concave tapered curve from the interface line towards the centerline of the container as the neck is directed towards the cap.
12. In the container of claim 11 wherein said flange is integral with said cap.
13. In the container of claim 11, when said container is in its fully reclining position on its side on said supporting surface, the centerline of said container makes an angle a with the plane of said supporting surface, said critical line also making an angle a with a line extending from a second point of said container at said cap to an uppermost point where said tapered section intersects with said base portion when said container is inclined on said supporting surface.
14. In the container of claim 11 wherein said base portion has an outer surface and an inner surface, the outer surface of said base portion smoothly curves from said bottom up to the intersection with said tapered section.
15. In the container of claim 11 said critical line is vertical when the cap abuts against said supporting surface.