Back to results
US 7,621,416 B2Granted
Cover of a container, especially of a vacuum receptacle for storage of foodstuffs
AssigneeFormaster S.A.
InventorSlawomir Bursztein
Life of this patent
Estimating the term…
Abstract
The cover of the container has the hollow (2) with an elliptical outline pointed towards the inside of the container; the hollow has the spherical projection (3), pointed upwards, and the projection has the cylindrical cavity (4) with the opening housing the valve head. The valve head has the form of a circular plate and has an edge with a triangular outline; cooperating with the gasket of the valve. The head valve is installed loosely in the opening by means of the sleeve ending with the flange with distancing projections in the form of radial ribs.
Claims18
A cover for a container
- comprising
- a shell bulged upwards;
- a hollow (2) having an elliptical outline pointed downwards and towards an inside of the container and disposed in said shell;
- a spherical projection (3), pointed upwards, and disposed in the hollow;
- a cylindrical cavity (4) disposed in the spherical projection (3);
- an opening (5) in a bottom of the cylindrical cavity;
- a valve head (6) formed as a circular plate (7) attached on a lower side in a middle to an end of a cylindrical stem and wherein the cylindrical stem is moveably supported in the opening (5);
- a ring shaped gasket (9) disposed on the bottom of the cylindrical cavity;
- an edge (8) forming a circle and disposed on the circular plate (7), having a triangular outline for engaging with the ring shaped gasket (9), wherein the ring shaped gasket (9) and the edge (8) disposed on the circular plate (7) form a vacuum valve,
- a sleeve (10) ending with the flange (11) with distancing projections in the form of radial ribs, wherein the head valve is installed loosely in the opening (5) by means of the sleeve (10),
- wherein the spherical projection (3) includes an inner ring and an outer ring and wherein a free end of the bonnet engages between the inner ring and the outer ring.
8 more elements
A cover for a container
- comprising
- a shell bulged upwards;
- a hollow (2) having an elliptical outline pointed downwards and towards an inside of the container and disposed in said shell;
- a spherical projection (3), pointed upwards, and disposed in the hollow;
- a cylindrical cavity (4) disposed in the spherical projection (3);
- an opening (5) in a bottom of the cylindrical cavity;
- a valve head (6) formed as a circular plate (7) attached on a lower side in a middle to an end of a cylindrical stem and wherein the cylindrical stem is moveably supported in the opening (5);
- a ring shaped gasket (9) disposed on the bottom of the cylindrical cavity;
- an edge (8) forming a circle and disposed on the circular plate (7), having a triangular outline for engaging with the ring shaped gasket (9), wherein the ring shaped gasket (9) and the edge (8) disposed on the circular plate (7) form a vacuum valve,
- a sleeve (10) ending with the flange (11) with distancing projections in the form of radial ribs, wherein the head valve is installed loosely in the opening (5) by means of the sleeve (10),
- wherein the gasket (9) is ring shaped and flat, wherein the gasket (9) surrounds the cylindrical stem, wherein the gasket (9) is seated at the bottom of the cylindrical cavity (4) and wherein the pin (12) is located completely inside the cylindrical cavity (4) while the valve is in a closed position and wherein an inner diameter of the gasket (9) is smaller than an outer diameter of the circular plate (7) and wherein an outer diameter of the gasket (9) is larger than the outer diameter of the circular plate (7) and wherein a thickness of the gasket (9) is larger than a thickness of the circular plate.
8 more elements
A cover for a container comprising
- a shell bulged upwards;
- a hollow (2) pointed downwards and towards an inside of the container and disposed in said shell;
- a spherical projection (3), pointed upwards, and disposed in the hollow;
- a cylindrical cavity (4) disposed in the spherical projection (3) and open on an upper side;
- an opening (5) in a bottom of the cylindrical cavity;
- a valve head (6) formed as a circular plate (7) attached on a lower side in a middle to an end of a cylindrical stem and wherein the cylindrical stem is moveably supported in the opening (5);
- a ring shaped gasket (9) disposed on the bottom of the cylindrical cavity;
- an edge (8) disposed on the circular plate (7) and having a triangular cross-section for engaging with the gasket (9), wherein the gasket (9) and the edge (8) disposed on the circular plate (7) form a vacuum valve.
5 more elements
Dependencies are inferred from the claim text.