Ventilation – Electronic cabinet
Reexamination Certificate
1998-12-11
2001-01-16
Joyce, Harold (Department: 3744)
Ventilation
Electronic cabinet
C055S385600, C454S286000, C454S306000
Reexamination Certificate
active
06174231
ABSTRACT:
The present invention concerns an air exit device of a microcomputer central unit.
Microcomputer ventilation air exits, especially if the microcomputers are used in a great number, are a nuisance for the people placed in front of the air exits, e.g. if many microcomputers are grouped.
The great quantities of air put into circulation by the microcomputer ventilation also represent a pollution source not to be neglected because this air sweeps dust and germs around. There are makeshift solutions consisting in fixing a piece of paper with an adhesive strip in front of the air exit in order to form a deflector lifted by the air blow. This solution, however, is not satisfactory, because it does not allow to direct the air and in any case does not clean the air flow charged with dust and particles.
The present invention has the scope to remedy these disadvantages and for this purpose concerns an air exit device of a microcomputer central unit, characterized by the fact that it comprises:
a support to be fixed around the microcomputer housing ventilation air exit opening,
an orientable guide tube linked to the support
a removable air filter placed in the way of the air which passes through the support and the guide tube.
This device allows to orient the ventilation air stream in the desired direction; this orientation can be modified according to circumstances.
The removable air filter holds back the dust, particles etc. It can be replaced by simply taking it out, and it can be sold as an accessory. The installation of the device is easy and not definitive. The support is to be fixed in an impermeable way around the exit opening, generally circular, of the microcomputer housing. At that moment it is not necessary to consider the orientation one wants to give to the guide tube because the latter is orientable.
This air exit device also has the advantage of not interfering with the production of the housing or that of the other parts of the microcomputer. The sufficient porosity of the air filter allows a good ventilation of the microcomputer.
According to further advantageous characteristics of the invention:
the support is formed by a sleeve equipped with a circular flange which carries an adhesive in order to glue the support to the housing wall around the ventilation air exit opening.
the support is formed by an adhesive ring equipped with a hooking surface, this ring being fixed on the housing around the air exit opening and the guide tube is equipped with a peripheric flange equipped with a complementary hooking surface to be fixed on the hooking surface of the support.
the guide tube is formed by an elbow helved on the sleeve of the support.
the guide tube is equipped with a peripheric flange endowed with a hooking surface in order to represent the support fixed directly on the housing around the ventilation air exit opening.
the guide tube has a circular section at the level of the ventilation air exit opening and downstream of this opening its section is circular, flat oval or rectangular.
the removable filter consists of a seal obtained on the exit of the microcomputer housing by the support.
the air filter is a seal held between the support and the sleeve of the tube.
the air filter is an element fixed at the exit of the air guide tube.
the air guide tube is composed of a part equipped with a sleeve fixed on the sleeve of the support and of a part telescopically helved on the part.
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patent: 5193523 (1993-03-01), Denber
patent: 5573562 (1996-11-01), Schauwecker et al.
patent: 5730770 (1998-03-01), Greisz
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Patents Abstracts of Japan, 06/021674, vol. 018, No. 230, Nec Corp., Jan. 1994.
Patents Abstracts of Japan, 03/012107, vol. 015, No. 128, Sanwa Ginkou et al., Mar. 1991.
Duvorack, Paul J., “Packaging Computers to Survive in the Real World”,Machine Design, vol. 60, No. 12, May 1988, Cleveland, Ohio, pp. 70-76.
Armstrong, Westerman Hattori, McLeland & Naughton
Joyce Harold
LandOfFree
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