ES1063019U - Capsula for ground product (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Capsule for ground product, of the type comprising a hollow cylindrical body (1) for receiving the ground product, this body (1) having an upper ring (13) with a circular front notch (14), and a lid (2) upper closure of said lower body (1) by fitting said ring (13) by a lower front projection (23) and a tubular section (24) slightly extended, characterized in that the cover (2) and the body ( 1) holes (11, 21) have holes (11, 21) preformed and closed at one end by a thin sheet of material (12, 22) defined in the injection itself of the shaping material of the lid (2) and the body (2), said sheets (12, 22) being suitable for the watertight preservation of the ground product contained therein up to the moment when the infusion is carried out in which the sheets of material (12, 22) are broken by the water pressure allowing circulation through said orifices (11, 21); and in that the lid (2) has a gasket (26) in its upper part formed by a surrounding projection of an outer lateral contour approximately rounded to be coupled to the dome of the water shower of the infusion setter. (Machine-translation by Google Translate, not legally binding)

Description

Capsule for ground product.

Object of the invention

The present invention relates to a capsule for ground product, of the type constituted by a body hollow inside the ground product is housed necessary to prepare an infusion, and a closure cap, presenting the body and the lid a series of holes or preformed perforations for the passage of pressurized water to Make the infusion.

Background of the invention

Currently for the realization of coffee "expresso" and other infusions there are various techniques, all based on high pressure water (between 10 and 15 bars) and high temperature (between 80ºC. and 90ºC.) through a certain amount of ground product.

The machine for the elaboration of this type of infusions basically comprises a water boiler where you it reaches said temperature and pressure, which is dosed through a shower in which a filter holder is attached in which deposit the ground product necessary to make the infusion picking up in a bottom cup.

The most traditional way of arranging the product ground in the filter holder is by manual dosing on the inner receptacle that forms the permanent metal filter. This system forces the filter holder and filter to be cleaned every  once a use is made and also handle the ground product to its dosage, which in general is very uncomfortable and with certain predisposition to the user to get dirty.

One solution appeared is the use of capsules single doses, which are placed in a capsule holder as a filter holder and are easily removed, allowing dosing of the milled product more comfortable and homogeneous. These capsules can be constituted by two sheets of filter paper joined by its contour and defining an inner bag in which it is deposited The ground product. However, these capsules have a high risk of deterioration and breakage because they are fragile, all when they have been used and are wet. It is also possible that the infusion is affected in its taste by the components of the paper.

Another type of capsule that is successful is the described in the utility model U9700169 of Philopatent, S.A .. This capsule is constituted by a receptacle, preferably of polypropylene or polystyrene suitable for food use. The capsule comprises a hollow cylindrical housing body of the ground coffee, this body presenting an upper ring with a frontal circular notch, and a top closure lid of said lower body by fitting into said ring by a lower projection front and a slightly prolonged tubular section, presenting the cover and body through holes, constitution conical trunk or truncated pyramid preferably for the passage of water under pressure through the infusion.

These types of capsules have the advantage that They are easy to place and discard, being resistant to the paper capsules, incorporating in said capsule the filter necessary to retain coffee or ground product. However, the existence of said through holes in the body and lid forces the capsule to be stored and marketed in a vacuum closed container so that the ground product does not lose aroma or taste It also presents the problem of adjusting the capsule in the capsule holder and against the shower of the machine coffee maker, since movement and water leakage are possible outside of passing through the ground product, which gives problems of Infusion quality

Description of the invention

The ground product capsule of this invention it presents some technical peculiarities destined to allow a better preservation and handling of the ground product contained in its interior, increasing the quality of the infusion obtained.

In fact, the body and the cover have some preformed holes and closed at one end by a thin sheet of material defined in the injection of the material itself shaping, said holes being suitable for conservation watertight of the interior coffee until the moment of the infusion in which the sheet of material is broken by pressure of water, allowing its circulation through these holes. This sheet of material that closes the holes has a thickness between 0.005 and 0.1 mm, allowing it to break at high pressures that the water comes out in the shower of the preparation machine infusions, and yet be tight enough to Avoid exchanging the inside of the capsule with the outside. These sheets may preferably be 0.01 millimeters of thickness.

In addition, the lid has a top joint formed by a surrounding side contour shoulder approximately rounded exterior to engage in the vault of The water shower of the machine. This board may present its quadrant or ellipse shaped section preferably.

The lid also includes a rounded shoulder perimeter in the tubular section. This highlight is conjugated with a annular highlight of the inner face of the body in order to ensure the closure and tightness of the capsule before and during  infusion. This prevents water from entering the inside the capsule can leak through the space between The lid and the body. In an alternative embodiment the lid and the body are joined by heat sealing or ultrasonic welding of the body ring and the lid portion seated therein.

This capsule has considerable advantages, since that it is not necessary to vacuum pack it for the preservation of aroma and properties of the ground product contained inside. In addition the sealing and assembly of the cover on the body and the adjustment of the capsule in the filter holder or capsule holder of the machine tea maker is easier and more effective, since causes all the infusion water to pass through the ground product and do not leak around said capsule.

Description of the figures

To complement the description that is being performing and in order to facilitate the understanding of characteristics of the invention, is attached to the present specification descriptive a set of drawings in which, for illustrative purposes and not limiting, the following has been represented:

- Figure 1 shows an elevation view of the closed capsule, sectioned by a longitudinal plane.

- Figure 2 shows a detail of the union of the body and lid.

- Figure 3 shows an elevation view of the lid, sectioned by a longitudinal plane.

- Figure 4 shows a bottom view of the top.

- Figure 5 shows an elevation view of the body, sectioned by a longitudinal plane.

- Figure 6 shows a bottom view of the top.

Preferred Embodiment of the Invention

As can be seen in the figures referenced the capsule is constituted by a cylindrical body hollow (1), closed by one base and open by the other, defining a housing for the ground product, and being coupled on the open base of the body (1) a top cover (2) closure. So much the closed base of the body (1) and the cover (2) have some holes (11, 21), truncated conical or truncated pyramidal configuration preferably, which define the filters for the passage of water during  infusion. These holes (11, 21) are preformed and closed by one end by a thin sheet (12, 22) of material defined in the injection of the forming material itself, enabling said sheet (12, 22) the sealed seal inside the capsule until The moment of infusion. These sheets (12, 22) have a thickness between 0.005 and 0.1 millimeters approximately, being preferably 0.01 mm.

The body (1) has an open base next to its upper ring (13) with a frontal circular notch (14) which is attachable with a lower projection (23) conjugated to the cover (2) in your inner face In turn, the cover (2) has on its lower face a concentric tubular section (24), slightly prolonged, which enter into the breast of the body (1). This tubular section (24) of the cover (2) has an annular shoulder in its outer contour perimeter (25), which is conjugated with an annular shoulder (15) of the Inner face of the body (1) for mutual fit, ensuring the closure and tightness of the capsule before and during infusion.

The cover (2) has on its upper face a gasket (26) formed by a surrounding side contour shoulder outer circle-shaped quadrant to engage in the curvature of the water shower dome machine tea maker and prevent water leaks around the capsule when the infusion is performed.

Once the nature of The invention, as well as a preferred embodiment, is for the appropriate purposes that the materials, form, size and arrangement of the elements described may be modified, as long as this does not imply an alteration of the essential features of the invention claimed in continuation.

Claims (7)

1. Capsule for ground product, of the type comprising a hollow cylindrical body (1) housing the ground product, this body (1) having an upper ring (13) with a circular front notch (14), and a cover (2) upper closure of said lower body (1) by fitting in said ring (13) by a lower front projection (23) and a slightly prolonged tubular section (24), characterized in that the cover (2) and the body ( 1) holes (11, 21) have holes (11, 21) preformed and closed at one end by a thin sheet of material (12, 22) defined in the injection of the cover forming material (2) itself and the body (2), said sheets (12, 22) being suitable for the watertight preservation of the ground product contained therein until the moment of infusion in which the sheets of material (12, 22) are broken by the water pressure allowing circulation through said holes (11, 21); and because the cover (2) has in its upper part a gasket (26) formed by a surrounding projection of approximately rounded outer lateral contour to engage in the vault of the water shower of the infusion machine. 2. Capsule according to claim 1, characterized in that the cap (2) comprises an annular shoulder (25) perimetral in the tubular section (24), conjugated to fit with an annular shoulder (15) of the inner face of the body ( 1) in order to ensure the closure and tightness of the capsule before and during the infusion. 3. Capsule according to claim 1, characterized in that the sheet of material (12, 22) that closes the holes (11, 21) has a thickness between 0.005 and 0.1 millimeters. 4. Capsule according to claim 3, characterized in that the sheet of material (12, 22) that closes the holes (11, 21) has a thickness of 0.01 mm. 5. Capsule according to claim 1, characterized in that the lid (2) and the body (1) are joined by heat sealing or ultrasonic welding. 6. Capsule according to claim 1, characterized in that the joint section (26) is in the form of a circle quadrant. 7. Capsule according to claim 1, characterized in that the section of the joint (26) is in the form of an ellipse quadrant.