Combustion – Burner cap – cover or extinguisher – Movably or removably mounted cover for flame holder
Patent
1982-03-08
1985-10-01
Dority, Jr., Carroll B.
Combustion
Burner cap, cover or extinguisher
Movably or removably mounted cover for flame holder
126 43, 431314, F23Q 2500
Patent
active
045443483
DESCRIPTION:
BRIEF SUMMARY
The present invention generally relates to apparatus for burning spirit or the like liquid fuel, more particularly fuel containers for such apparatus, and specifically such containers, which are filled with a fuel absorptive mass. In one type of apparatus the combustion takes place along an exposed horizontal surface of the absorptive mass, usually called apparatus with horizontal surface combustion. In another type of burning apparatus the container has a preferably vertical channel with an entirely or partly exposed surface, from which fuel to be burned evaporates.
According to a first aspect the invention particularly relates to an apparatus for burning spirit or similar liquid fuel, with a fuel container filled with a fuel adsorbing mass with partly exposed surface, from which fuel to be burned evaporates, a draught or burner tube being so arranged with respect to the exposed surface that suction in of air in the tube is secured, the fuel container being separate and demountable from the rest of the apparatus and having upper, bottom and side walls enclosing the absorbing mass, the upper wall including a central opening for forming the exposed surface, the surface of said opening forming a smaller part of the total surface of the top wall.
A first object of the invention is to provide improved fuel containers, at which particularly different problems connected with the fuel and its refilling, ignition and extinction have been solved.
In a plurality of embodiments of spirit stoves it occurs that the flame is controlled and extinguished with a cover, throttle, disc or the like. Under certain circumstances it can happen that the flame nevertheless has not completely gone out after the extinguishing operation proper, but a greater or smaller flame "hangs around" at or in the vicinity of the extinguishing means due to leakage of spirit vapour. At the corresponding point spot leaking fuel vapours can also under unfavourable circumstances catch fire from an adjacent fire, e.g. from burning flame on a multiflame cook or heating apparatus.
The problem is greatest in connection with fuel containers which are more or less overheated, and one can never neglect that the fuel container can be overheated to near or above the boiling point of the fuel. The problems not less apply to stoves of the type discussed briefly above, i.e. low pressure stoves for spirit with partly exposed absorbing mass in the fuel container.
What is important in connection with the extinction of the stove is that a small "remaining residual flame" cannot "grow" by further heating of the fuel or vital parts of the fuel container. Instead the flame shall go out by itself due to cooling down burner portions and decreasing evaporation from the fuel.
A first specific object of the invention is to decrease the problems in connection with extinction. This object has been attained in an apparatus according to the first aspect in that the opening is surrounded by a rim portion of the top wall substantially raised with respect to the rest of the upper side of the container.
In fuel containers with fuel bound in an absorption mass there can be problems to completely bind all fuel that can be supplied to the container at filling. Particularly, this is true in containers which have greater length or width than height, if the container is filled in an horizontal position.
By giving to a fibrous mass, e.g., mineral wood, an adapted packing degree a relatively good fuel binding is obtained, but hardly that good that no spirit flows out of the refilling opening of the container if the container is raised to a vertical position after filling.
By raising the container to a vertical position one can thus deliberately obtain a certain pouring out of fuel that can otherwise cause problems and danger in case of unintentional leaning of the container. An intentional pouring out of excess fuel by inherent pressure outflow can, however, be quite time consuming if freedom of spillage is required.
A second specific object of the invention is to provide a container desi
REFERENCES:
patent: 1013271 (1912-01-01), Brown et al.
patent: 1933318 (1933-10-01), Doen
patent: 3290907 (1966-12-01), Boij et al.
patent: 3316957 (1967-05-01), Stockli et al.
patent: 3606609 (1971-09-01), Lipper et al.
patent: 3627463 (1971-12-01), Boij
patent: 4416617 (1983-11-01), Ebbeson
Ailes Curtis
Dority Jr. Carroll B.
LandOfFree
Apparatus for burning spirit or the like liquid fuel does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for burning spirit or the like liquid fuel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for burning spirit or the like liquid fuel will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1439827