Multi-purpose valve for extending shelf-life using vacuuming or injecting gas
OwnerTrong D Nguyeninventor
Life of this patent
Estimating the term…
Abstract
A multifunctional valve features a pumping function and a vacuuming function. The valve can be implemented in any closed container having a removable lid or a bag having a resealable zipper or any other similar sealable feature. The valve also features a tethered plug to additionally provide sealing. The valve incorporates a spacer or washer when used in thin walls to provide support. When the valve is used with a bag, the spacer or washer incorporates footing so that the valve does not collapse on its own when the valve is used in conjunction with a vacuum pump or a gas pump.
Claims19
A valve comprising a first annular flange, a second annular flange, a nipple, a hollow core, and a cap;
- wherein the core separates the flanges from each other establishing a gap between the flanges;
- wherein the nipple comprises a bore;
- wherein the cap comprising a flange extending from the cap to seal inside the bore;
- and,
- wherein a duckbill extends from the bore and includes a slit;
- wherein the first annular flange comprises at least two flexible tapered flaps, and a connecting ledge between the flaps;
- and,
- wherein the connecting ledge includes a cutout to provide flexibility to the flexible tapered flaps.
A valve comprising a first annular flange, a second annular flange, a nipple, a hollow core, and a cap;
- wherein the core separates the flanges from each other establishing a gap between the flanges;
- wherein the nipple comprises a bore;
- wherein the cap comprising a flange extending from the cap to seal inside the bore;
- and,
- wherein a duckbill extends from the bore and includes a slit;
- the valve in combination with a washer to be retained between the two annular flanges;
- and,
- wherein the washer includes a circular hole receiving the hollow core of the valve.
A valve comprising a first annular flange, a second annular flange, a nipple, and a hollow core;
- wherein the core separates the flanges from each other establishing a gap between the flanges;
- wherein the nipple comprises a bore;
- wherein a duckbill extending from the bore and including a slit;
- wherein the duckbill comprises a cone shape and a pair of tapered surfaces interrupt the cone shape;
- wherein the slit sits midway between the tapered surfaces of the duckbill;
- and,
- wherein at least one footing projecting from the second annular flange and a channel delimits the at least one footing for air flow to access the slit;
- wherein the first annular flange comprises at least two flexible tapered flaps, and a connecting ledge between the flaps;
- and,
- wherein the connecting ledge includes a cutout to provide flexibility to the flexible tapered flaps.
Dependencies are inferred from the claim text.