Heat exchange – With protector or protective agent
Reexamination Certificate
2000-02-17
2001-08-21
Lazarus, Ira S. (Department: 3743)
Heat exchange
With protector or protective agent
C165S104210
Reexamination Certificate
active
06276444
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a protecting device for sealing openings of a heat tube and the method for manufacturing the same, and especially to a special device and method for sealing openings of a heat tube or heat plate.
BACKGROUND OF THE INVENTION
The prior art heat tube or heat plate serves as heat transfer element in phase change operation. Since the heat tube
12
is formed by an inner plate
112
and a mask plate
113
. The mask plate
113
is two flat plates for clamping from two sides or is placed in a round tube. All these are formed as a basic structure.
Since it is required that the heat tube is operated in a closed body, four corners of a heat plate or two ends of a heat tube must be sealed. Currently, as shown in
FIGS. 1 and 2
, a punching method is used. A pair of upper and lower molding plates
8
and
9
serve to press the edges
111
of the heat tube or heat plate, as shown in FIG.
1
. Even it is pressed with a wave-like shape, and then one side thereof is cut.
The newly generated rim has a good tightness. However, this can not be retained for a long period of time. Therefore, the rim of a heat tube or heat plate must pass through a tin furnace
7
for being adhered with tin material at the rim portion. Thus, the rim is substantially sealed.
However, this prior art way has many defects. Since the rim portion is very thin, only a thin layer of tin is adhered to the rim potion, the fluid therewith in is easy to drain out.
Since pressing the opening for cut away is a temporary sealing, the operation of adding with tin must be performed very rapidly. Sometimes, a cooling device is necessary for dissipating the residual heat from the tin furnace to prevent that the heat tube is damaged. Otherwise, not only the sealing effect is not complete, but also the high temperature of the tin furnace will cause that high temperature and high pressure are formed in the heat tube so as to induce an explosion of the heat tube.
Furthermore, the edge generated from pressing the rim is very thin so that two ends become more acute and the tin adhered to the opening is thin. In the assembling process of the product, workers are possible to be harmed or the heat tube is damaged due to a collision. Moreover, the thin edge is easily deformed. Maybe, in the secondary finishing, such as plating or polishing, it is easy to be damaged due to the thin tin layer.
Therefore, the prior art heat tube or heat plate is necessary to be improved in the process of manufacturing.
Alternatively, as shown in
FIG. 3
, another machining way is illustrated. As the upper view shown in
FIG. 3A
, since punching process will induce some acute protrusions
21
at two ends of the heat tube
2
. A pair of clamping elements
3
and
5
serves to clamp and fix the heat tube, while another pair of molds
5
and
6
serves to press the heat tube inversely to be formed with tip tapers at two ends, as shown in the lateral view of
FIG. 3B
, for reducing the width thereof. This way is beneficial to the present invention.
SUMMARY OF THE INVENTION
Accordingly, the primary object of the present invention is to provide a protecting device for sealing openings of a heat tube and the method for manufacturing the same. Low temperature manufacturing method and process are changed. The rim of a heat tube is added with a protecting clamp (protecting cover) so that a round rim is formed. Other than increasing the sealing at the rim portion for increasing the reliability in use, the round rim is beneficial in the subsequent finishing process. Moreover, the assembling worker or user will not be harmed by the edge.
Therefore, it can be performed in an automatic process. A good product is produced. Alternatively, the product is protected well.
Therefore, the present invention provides a protecting device for sealing openings of a heat tube and the method for manufacturing the same. After punching the rim of a plate-like or tube-like heat tube, a protecting clamp covers thereon. After the protecting clamp clamps the rim, then glue is filled thereinto or it passes through a tin furnace for curing. Another, metal, plastic, or glue can cover the rim to be formed as a sealing.
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing.
REFERENCES:
patent: 2279143 (1957-01-01), Brooks
patent: 3680189 (1972-08-01), Noren
patent: 4105814 (1978-08-01), Eggert
patent: 4314607 (1982-02-01), DesChamps
patent: 4497363 (1985-02-01), Heronemus
patent: 5642775 (1997-07-01), Akachi
patent: 5704415 (1998-01-01), Suzuki et al.
patent: 6040562 (2000-03-01), Tokumoto et al.
patent: 0088594 (1983-05-01), None
Duong Tho Van
Lazarus Ira S.
Rosenberg , Klein & Lee
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