Vaporizer

Details Vaporizer Vaporizer

2002-05-23

2004-03-16

Wilson, Gregory (Department: 3749)

Liquid heaters and vaporizers

Flasher

C392S399000

Reexamination Certificate

active

06705252

ABSTRACT:

BACKGROUND OF THE INVENTION
This invention relates to a vaporizer, particularly to one capable to speedily convey and vaporize liquid in a vaporizing tube.
A common conventional vaporizer generally includes a cast block
1
made of zinc-aluminum alloy and an electric heating tube
10
and a water conveying tube
11
both contained in the cast block
1
. Then the case block
1
is heated up by the electric heating tube
10
, and then the water conveying tube
11
is heated up by the heat of the cast block
1
so that liquid flowing in the water conveying tube
11
is also heated up to become vapor. The time required in vaporizing may be 2-3 minutes at least or more than ten minutes at latest depending on the capacity of the electric heating tube
10
, as high temperature produced by the electric heating tube
10
has to be transmitted to the cast block
1
and the heat absorbed by the cast block
1
is then transmitted to the water conveying tube
11
, whose heat is then absorbed by liquid flowing in the water conveying tube
11
. Then the liquid in the tube
11
has to be boiled to become vapor. Therefore, if the liquid in the tube
11
is to be vaporized in two or three minutes, a large amount of electricity is needed to heat up swiftly the electric heating tube
10
in order to vaporize liquid in 2 or 3 minutes. Or liquid in the water conveying tube
11
has to be heated up by the heat absorbed by the water conveying tube
11
for more than ten minutes in case of the electric heating tube
10
having a small capacity, quite inconvenient to use.
The conventional vaporizer described above uses the electric heating tube
10
for indirectly heating liquid flowing through the water conveying tube
11
, having inferior effect in vaporizing due to insufficient heat capacity so that liquid drops may remain at the outlet end of the water conveying tube
11
, hardly meeting the using standard.
SUMMARY OF THE INVENTION
This invention has been devised to offer a vaporizer having better effect than the conventional ones.
The vaporizer in the invention has the following feature.
1. It includes a pump for pumping liquid to be conveyed to a helical vaporizing tube, which has its two ends connected to two output terminals of a power source of a control system, for vaporizing liquid in the vaporizing tube very swiftly.
2. The vaporizing tube in the invention is shaped helical, having the lowest temperature at an inlet end and the highest temperature at an outlet end, preventing the liquid from reversely flowing back to the pump due to a low pressure of the liquid at the inlet end of the vaporizing tube.


REFERENCES:
patent: 1288055 (1918-12-01), Langsenkamp
patent: 2535752 (1950-12-01), O'Connell
patent: 4246871 (1981-01-01), Bocksruker et al.
patent: 5058194 (1991-10-01), Violi
patent: 6167845 (2001-01-01), Decker, Sr.

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