DE29905301U1 - Lid for a jug - Google Patents

Description

Lid for a jug

The present invention relates to a lid for a jug, in particular an insulated jug for holding brewed beverages such as coffee or tea, the lid being provided with a brewing opening so that a jug equipped with such a lid can be used directly as a container for a coffee or tea machine.

It is known to use jugs, in particular insulated jugs, as containers for a coffee or tea machine, whereby such jugs are equipped with a lid with a pour-through opening through which the beverage freshly brewed in a coffee or tea machine can flow directly into the jug. After the brewing process has finished, the jug can then be removed from its place in the coffee or tea machine and

Dr. LOESENBECK (1980) · DIPL.-ING. STRACKE · DIPL.-ING. LOESENBECK - PATENT ATTORNEYS - BIELEFELD

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be transported to any other location where the collected brewed beverage is to be consumed.

The jug, especially if it is designed as an insulated jug, also has the task of keeping the brewed beverage warm for as long as possible.

With regard to the design of the brewing opening of lids for the above-mentioned purpose, two solutions are known in principle.

There are lids that are equipped with moving parts in the area of the brewing opening in the form of a spring-loaded plunger with a seal, whereby the plunger is moved axially by the spring force after the pot closed with such a lid is removed from the coffee machine and brought into a closed position in which the brewing opening is then closed. This improves the warming of the brewed beverage in the pot.

Lids of the type in question here are also known in which the brewing opening consists of a permanently open flow pipe.

Although there are no moving parts in the lid, since the brewing opening is constantly open, undesirable heat loss occurs.

The present invention is based on the object of creating a lid of the generic type which, without having any moving parts in the area of the brewing opening, is nevertheless able to prevent undesirable heat loss in a jug, in particular an insulated jug, filled with a hot brewed beverage.

This object is achieved according to the invention in that the brewing opening is designed as a suction lifter.

Dr. LOESENBECK (1980) · DIPL.-ING. STRACKE · DIPL.-ING. LOESENBECK - PATENT ATTORNEYS - BIELEFELD

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This measure, which is easy to implement in terms of manufacturing technology, creates a lid that has no moving parts in the area of the brewing opening, but can nevertheless be considered closed in the area of the brewing opening after the brewing process has been completed, since a small amount of liquid remains in the area of the siphon after the brewing process has ended and keeps its suction opening closed from a fluidic point of view.

According to a preferred embodiment of the invention, the siphon consists of a drain pipe ending at the top in a brewed beverage collection chamber and of a cover cap placed on the upper end of the drain pipe and equipped with a suction pipe, wherein the upper front end of the drain pipe is below the maximum possible fill level of the brewed beverage collection chamber and the lower end of the suction pipe is below the upper front end of the drain pipe and at a distance from the bottom end of the brewed beverage collection chamber.

The cover cap not only enables the suction lifter area to be closed in a way that matches the shape of the lid, but also reduces heat loss.

Further features of the invention are the subject of further subclaims.

An embodiment of the invention is shown in the accompanying drawings and is described in more detail below.

Show it:

Figure 1 is a highly simplified representation of a coffee or tea machine with a

by a lid according to the invention closed insulated jug and

Dr. LOESENBECK (1980) · D1PL.-ING. STRAACKE · DIPL.-ING. LOESENBECK - PATENT ATTORNEYS - BIELEFELD

&iacgr; .· A6m£|dete#tvotn22.i)3.t999 Page 4

Figure 2 shows a section through the lid and the upper part of the device shown in Fig. 1.

Thermos flask.

In Fig. 1, the reference number 1 designates a coffee or tea machine in which an insulated jug 2 is used as a container for a brewed beverage. The insulated jug 2 is closed by a lid 3, which is provided with a brewing opening in a manner known per se.

The construction and special features of the cover 3 are shown in the sectional view according to Fig. 2.

According to the invention, the brewing opening of the lid 3 is designed as a suction lifter, whereby the suction lifter in the illustrated embodiment consists of a drain pipe 5 ending at the top in a brewed beverage collecting space in the form of an annular space 4 and of a cover cap 7 placed on the upper end of the drain pipe 5 and equipped with a suction pipe 6.

The upper front end 5a of the drain pipe 5 is below the maximum possible filling level 8 of the annular space 4, while the lower end 6a of the intake pipe 6 is below the upper front end 5a of the drain pipe 5 and at a distance from the bottom-side lower end 4a of the annular space 4.

At the beginning of the brewing process, freshly brewed coffee or tea flows into the annular space 4, rises in this annular space and thus also within the suction pipe 6, whereby after exceeding the level specified by the upper front end 5a of the drain pipe 5, the siphon effect comes into effect and the brewed beverage in the annular space 4 is transported into the interior of the insulated jug 2.

Dr. LOESENBECK (1980) · DIPL.-ING. STRACKE · DIPL.-ING. LOESENBECK - PATENT ATTORNEYS - BIELEFELD

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After completion of the brewing process, a residual amount of liquid remains within the annular space 4, which is practically at the level of the lower end 6a of the intake pipe 6 and practically closes this lower end 6a.

The entire siphon area is thus closed off and sealed from the outside in terms of flow, so that the heat loss with regard to the brewed beverage stored in the insulated jug 2 can be kept relatively small. The cover cap 7, which is designed in such a way that the entire siphon area in the lid 3 is covered from the outside in a visually appealing way, provides additional protection against undesirable heat loss.

The invention provides a lid 3 which has no moving parts in the area of the brewing opening and yet effectively prevents heat loss inside the insulated jug or any other jug as far as possible.

The lid 3 including all components forming the suction lifter described is advantageously made of plastic.

As Fig. 2 clearly shows, the cover cap 7 is equipped with a cover hood 7a, which covers the entire annular space 4 including the inlet area in this annular space.

Dr. LOESENBECK (1980) · DIPL.-ING. STRACKE · D1PL.-ING. LOESENBECK - PATENT ATTORNEYS - BIELEFELD

Claims (5)

AJimi»ldete£tvcen2£i)3.J999 Page Protection claims 1. Lid for a jug, in particular an insulated jug for holding brewed beverages such as coffee or tea, the lid being provided with a brewing opening so that a jug equipped with such a lid can be used directly as a receiving container of a coffee or tea machine, characterized in that the brewing opening is designed as a suction lifter. 2. Lid according to claim 1, characterized in that the siphon consists of a drain pipe (5) ending at the top in a brewed beverage collection chamber and of a cover cap (7) placed on the upper end of the drain pipe (5) and equipped with a suction pipe (6), the upper front end (5a) of the drain pipe (5) being below the maximum possible fill level (8) of the brewed beverage collection chamber and the lower end (6a) of the suction pipe (6) being below the upper front end (5a) of the drain pipe (5) and at a distance from the bottom lower end (4a) of the brewed beverage collection chamber. 3. Lid according to claim 2, characterized in that the brewed beverage collecting space is designed as an annular space (4) surrounding the drain pipe (5). 4. Lid according to claim 2 or 3, characterized in that the cover cap (7) is provided with a cover hood (7a) which covers the entire annular space (4). 5. Lid according to one or more of the preceding claims, characterized in that the lid (3) as a whole, including all components forming the suction cups, is made of plastic. Dr. LOESENBECK (1980) · DIPL.-ING. STRACKE · DIPL.-ING. LOESENBECK - PATENT ATTORNEYS - BIELEFELD