Tent chimney and mounted stove

Not Applicable

Not Applicable

1. Field of Invention

This invention relates generally to joints for sections of tapered chimneys used in tents and to stoves mounted on chimneys that support tents

2. Description of Prior Art

Lightweight liquid fueled stoves are widely used by outdoor travelers today who demand the smallest, lightest equipment. The stoves have no chimney so are essentially only good for fair weather use outside the tent. When caught in cold, wet, windy weather many campers ignore the obvious hazards and light the stove inside their tent if they can\'t run for home. Liquid fuel has to be packed in, the longer the trip the more weight to be carried.

Usually deadwood is readily available where backpackers travel. It is logical to use a wood burning stove for heating and cooking in the comfortable shelter of a tent in any kind of weather. Wood stoves, however, have not been accepted by many backpackers because of problems with stoves and the serious need for a safe dependable chimney.

Some problems are as follows:

1. Tapered pipe sections are used for camp stove chimneys because one section slides totally into another for convenient packing. The traditional method of joining two sections of tapered or straight stove pipe is by crimping one end of pipe to make the diameter small enough to fit into the end of another section that has not been crimped. Straight pipe sections overlap each other as much as the length of crimping. The length of overlap with tapered pipe is limited because of the taper. This short overlap at the crimped joint of tapered stove pipe puts high pressures on the metal in the region of the joint. As a result light thin gauge metal can not be used for tapered stove pipe. Chimneys using this crimped joint for tapered or straight pipe cannot support the weight of a tent.
2. Chimneys using this crimped joint in windy conditions are subject to disconnection from the stove or the pipe joints when the pipe sits in the stove connection and passes through a roof jack. Wind on the tent roof jerks the roof jack up and down sometimes pulling apart the connections. The chimney is loose and bearing no weight.
3. Chimneys exiting the tent through the side wall or a low part of the tent roof are usually too hot to be safe. The roof jack is too close to the stove.
4. If chimney and stove both sit on the ground, the coupling between them can be strained by the movement of the chimney and not the stove.
5. A separate pole must be carried to support the tent if the chimney is not used for support.
6. A horizontal stove position causes the radiant heat to beam mostly up and down not as much outward to the occupants of the tent. Radiant heat is the most useful type of heat in a tent.


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