IP Library Granted Patent US 10,098,502
Granted Patent B2
US 10,098,502 · App. 15/321,381 · Granted Oct 16, 2018

Grill and wood-charcoal chamber

Inventors: Hans Ohler (Limburgerhof, DE); Mischa Ohler (Speyer, DE); Harri Paakkanen (Heidelberg, DE)
Assignee: LotusGrill GmbH
A47J37/0704
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Quick Facts
Patent No.
US 10,098,502
App. No.
15/321,381
Granted
Oct 16, 2018
Kind
B2
Abstract

A grill, comprising a housing ( 1 ), a carrier shell ( 2 ) arranged inside the housing ( 1 ) at a distance from the housing ( 1 ) on all sides, a substantially cylindrical wood-charcoal chamber ( 20 ), which stands in the carrier shell ( 2 ) and has a cover ( 24 ), a grill grate ( 3 ) arranged above the wood-charcoal chamber ( 20 ), and an air supply device, which produces an air flow directed into the wood-charcoal chamber ( 20 ) from below the carrier shell ( 2 ), is characterized in that the cylindrical wall ( 23 ) of the wood-charcoal chamber ( 20 ) is produced from a stainless-steel sheet and in that the stainless-steel sheet is slotted, perforated, or stretched.

Claims (33)

1. A grill comprising:

a housing ( 1 ) having an inner bottom ( 4 );

a carrier shell ( 2 ) having a bottom region containing a passage, the carrier shell ( 2 ) being arranged inside the housing ( 1 ) at a distance from the housing ( 1 ) on all sides;

an essentially cylindrical charcoal chamber ( 20 ) located in the carrier shell ( 2 ), and having a lid ( 24 ) and a cylindrical wall ( 23 );

an air inlet pipe ( 31 ) extending through the inner bottom ( 4 ) of the housing ( 1 ), through the passage of the carrier shell ( 2 ), and into a space immediately below the charcoal chamber ( 20 ) in the carrier shell ( 2 );

a grill grate arranged above the charcoal chamber ( 20 ); and

a fan ( 18 ) located within the housing ( 1 ) and that generates air flow, which is directed, via the air inlet pipe ( 31 ), from below the carrier shell ( 2 ) and into a space immediately below the charcoal chamber ( 20 ),

wherein:

the cylindrical wall ( 23 ) of the charcoal chamber ( 20 ) is made of a high-grade steel plate,

the high-grade steel plate is either slotted or perforated,

slots or holes in the high-grade steel plate are sized with a slot width or a hole diameter configured to both enable optimum radiation of heat and prevent embers and sparks from passing through the slots or holes to an external environment, and

the slot width or the hole diameter are in a range of 1 mm to 3 mm.

2. The grill as claimed in claim 1 , wherein the wall ( 23 ) is a perforated plate.

3. The grill as claimed in claim 2 , wherein the perforated plate has a round perforation ( 36 ).

4. The grill as claimed in claim 2 , wherein the perforated plate has an oval perforation ( 36 ).

5. The grill as claimed in claim 2 , wherein the perforated plate has an elliptical or elongated perforation ( 36 ).

6. The grill as claimed in claim 2 , wherein the perforated plate has a rectangular perforation ( 36 ).

7. The grill as claimed in claim 2 , wherein the perforated plate has a square perforation ( 36 ).

8. The grill as claimed in claim 2 , wherein the perforations ( 36 ) of the adjacent rows of holes lie on a horizontal line.

9. The grill as claimed in claim 2 , wherein the perforations ( 36 ) of the adjacent rows of holes are arranged so as to be offset from each other.

10. The grill as claimed in claim 2 , wherein the holes have a diameter of approximately 2 mm.

11. The grill as claimed in claim 1 , wherein the wall ( 23 ) has axially extending slots, which are formed parallel to each other and which extend between a continuous bottom-sided edge and a continuous lid-sided edge.

12. The grill as claimed in claim 1 , wherein the wall comprises wall elements ( 37 ), which are radially offset from each other, at least slightly overlap each other, and in each case form between each other respective axially extending slots.

13. The grill as claimed in claim 1 , wherein the slots have a width of approximately 2 mm.

14. The grill as claimed in claim 1 , wherein the wall ( 23 ) is made of expanded metal.

15. The grill as claimed in claim 1 , wherein the lid ( 24 ) is perforated in its surface.

16. The grill as claimed in claim 1 , wherein inside the charcoal chamber ( 20 ) a screen-like inlet made of a fine mesh high-grade steel is arranged, the screen-like inlet being at least one of located further in the carrier shell ( 2 ) or connected to the charcoal chamber ( 20 ).

17. The grill as claimed in claim 1 , wherein at least one of:

the air inlet pipe is integrally formed with the inner bottom ( 4 ); or

the space immediately below the charcoal chamber ( 20 ) is defined, in part, by a kindling tray ( 32 ).

18. The grill as claimed in claim 1 , wherein the passage in the carrier shell ( 2 ) is a centrally located passage.

19. The grill as claimed in claim 1 , wherein the carrier shell ( 2 ) further comprises an edge region ( 21 ) in direct contact with a corresponding portion of the housing ( 1 ).

20. The grill as claimed in claim 1 , wherein the housing ( 1 ) further comprises an outer bottom ( 15 ), a first set of passages in fluid communication with a first space between the inner bottom ( 4 ) and the outer bottom ( 15 ), and a second set of passages in fluid communication with a second space between the carrier shell ( 2 ) and the inner bottom ( 4 ) of the housing ( 1 ).

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 22, 2016
From: OHLER, HANS; OHLER, MISCHA; PAAKKANEN, HARRI
To: LOTUSGRILL GMBH
Reel/Frame 040746/0896 →
Priority Claims (1)
DE 10 2014 213 770 · Jul 15, 2014 · national
Continuity (1)
Related Publication 20170224159A1 · Aug 10, 2017
Cited By (18)
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