DE8910602U1 - Burner insert, especially for candle-shaped lamps - Google Patents

Description

&igr; . Applicant: Alois Lenartz

Kupfergasse 12

5000 Cologne 90

Designation: Burner insert, especially for candle-shaped lamps

The invention relates to a burner insert, in particular for candle-shaped lamps, consisting of a nozzle that can be filled with liquid fuel and is essentially cylindrical, with a wick that protrudes from the top, which is guided in a guide tube that is inserted centrally in the top and whose lower end extends at least as far as the bottom of the can.

It is known that larger and more valuable candles are not ignited directly, but rather a burner insert filled with liquid fuel and provided with a wick is inserted into a candle-shaped hollow body, which provides the flame.

From DE-PS 33 48 049, a burner insert in the form of an essentially cylindrical aerosol spray can is known. A wick protruding from the top is guided into a guide tube inserted centrally into the top, which is designed as a valve plate. This burner insert can be easily inserted into the candle body and replaced with a new burner insert after the fuel has burned out. The disadvantage of these known burner inserts is that they have to be thrown away after one-time use.

If large candles are used frequently and for long periods,

For example, in funeral homes, these disposable containers not only increase the amount of waste, but also represent an unfavourable cost factor, especially since not only the material and manufacturing value of the container and the wick guide tube, but also the almost unused wick is lost.

The invention is based on the object of creating a burner insert that can be produced inexpensively and which can be easily and reliably refilled after the fuel has been burned.

This object is achieved according to the invention, starting from a burner insert according to the preamble of claim 1, in that the top of the can is designed as a screw-off lid with a central passage into which the guide tube with the wick is inserted.

The burner insert according to the invention can be opened easily by unscrewing the lid, can then be filled with liquid fuel from a storage container and then sealed again. If necessary, the wick can also be replaced at the same time.

In an advantageous embodiment, the lid is screwed with an external thread provided on its lower area into an internal thread arranged on the edge of the cylindrical can and sealed with a sealing ring inserted between a sealing edge on the lid and a sealing edge on the can.

The burner insert according to the invention can be made of plastic. A particularly economical production is also achieved by the fact that, in a further development of the invention, the can is manufactured using the extrusion process and a prefabricated threaded ring is rolled into the upper end.

Further features of the invention can be found in claims 5 to 9.

In the following description, an embodiment of the invention is explained in more detail with reference to the drawing. The drawing shows a longitudinal section through a burner insert according to the invention.

In the drawing, the burner insert consists of a

essentially cylindrical can 1 with a screw-off lid 2. A wick 3 protrudes from the top of the lid 2 and is guided in a guide tube 4 which is inserted into a central opening in the lid 2. The opening is designed in such a way that a ventilation edge 1 remains free between the guide tube 4 and the opening. The lid 2 is provided with an external thread 6 on its lower part. The external thread 6 is inserted into an internal thread 7 of a

IC GffWl rider&iacgr; nges S einyeSCurdüöi , which is rolled up on the outer edge of the can 1, which is made from metal using the extrusion process. For sealing, a sealing ring 9 is inserted between a sealing edge 10 on the lid 2 and a sealing edge 11 on the can. After filling with the liquid fuel, this arrangement achieves the same operationally reliable tightness as with the known, non-openable cans by completely screwing on the lid.

In order to achieve a calm and evenly burning flame 2C and to give the candle-shaped light body an appearance that is as close as possible to that of a naturally burning candle, the cover 2 of the burner insert has a recessed top 12 and is provided near its upper edge with several air holes 13 distributed around the circumference, which are advantageously directed diagonally upwards from the circumference of the cover to its center. It is also advantageous if the guide tube 4 for the wick 3 protrudes slightly above the upper edge of the cover 2. An unhindered but low-draft air access to the flame is ensured with this arrangement and the well-ventilated recess around the flame prevents the cover from heating up undesirably. The recess 12, the wall of which can be reflective, also enables free radiation of the light, which can also shine through the air holes 13 to the upper edge of the candle-like hollow body into which the burner insert is to be inserted.

In a preferred embodiment of the invention, the top 12 of the lid 2 has a concave curvature and the central passage for the guide tube 4 is surrounded by an upwardly projecting collar 14 which ends below the level of the air holes 13, and the guide tube has a conical extension 15 at the top which limits the insertion into the collar 14 and whose height is designed such that the wick 3 is released slightly above the upper edge of the lid 2. In this IC version, inserting or replacing the wick is particularly easy and a reliable holding of the wick with flame formation at the desired height is achieved.

To facilitate screwing and unscrewing the cover 2, its circumference is provided with knurling 16.

The burner insert according to the invention is not only suitable for candle-shaped lamps, but can also be used to advantage for lanterns and party lighting for gardens and terraces. Several burner inserts can also be combined in multi-flame lamps. Different colored flames can be achieved by adding different additives to the liquid fuel.

The screw-on lid 2 can be screwed onto cans of different heights so that the burner insert can be adapted to the respective intended use.

^{List of} reference symbols

t ·

1 can

2 Lid ⁵ 3 Wick

4 guide tubes

5 bead

6 External thread of the lid

7 Internal thread ¹⁰ 8 Threaded ring

9 Sealing ring

10 Sealing edge on the lid

11 Sealing edge on the can

12 recessed top ¹⁵ 13 air holes

Federation

conical extension knurling

Claims (9)

PROTECTION CLAIMS: 1. Burner insert, in particular for candle-shaped lighting elements, consisting of a substantially cylindrical can which can be filled with liquid fuel and has a wick protruding from the top, which is guided in a guide tube which is inserted centrally in the top and whose lower end reaches at least to the bottom of the nose, characterized in that the top of the can (1) is designed as a screw- ^on rear end with a central passage into which the guide tube (4) with the wick (3) is inserted. 2. Burner insert according to claim 1, characterized in that the cover (2) is screwed with an external thread (6) provided on its lower region into an internal thread (7) arranged on the edge of the cylindrical can (1) and is sealed with a sealing ring (9) inserted between a sealing edge (10) on the cover (2) and a sealing edge (11) on the can (1). 2C is sealed. 3. Burner insert according to claim 1 or 2, characterized in that it is made of plastic. 4. Burner insert according to claim 1 or 2, characterized in that the can (1) is made of metal using the extrusion process and a threaded ring (8) is rolled into the upper end. : _; , 30 5. Burner insert according to one of claims 1 to 4, characterized in that the cover (2) has a recessed upper side (12) and is provided with a plurality of air holes (13) distributed around the circumference near the upper edge. A35 6. Burner insert according to claim 5, characterized in that the air holes (13) extend from the circumference of the cover (2) to its center are directed diagonally upwards. 7. Burner insert according to one of claims 1 to 6, characterized in that the guide tube (4) for the wick (3) protrudes beyond the upper edge of the lid (2). 8. Burner insert according to one of claims 1 to 7, characterized in that the upper side (12) of the cover (2) has a concave curvature and the central passage for the guide tube (4) is surrounded by an upwardly projecting collar (14) which ends below the level of the air holes IC (13) and that the guide tube (4) has a conical extension (15) at the top which limits the insertion into the collar (14) and whose height is designed such that the wick (3) is released slightly above the upper edge of the cover (2). 9. Burner insert according to one of claims 1 to 8, characterized in that the cover (2) has a knurling (16) on its circumference.