U.S. patent number 3,748,438 [Application Number 05/217,818] was granted by the patent office on 1973-07-24 for vaporizer device.
This patent grant is currently assigned to Coswell Products, Inc.. Invention is credited to Hal F. Costello.
United States Patent |
3,748,438 |
Costello |
July 24, 1973 |
VAPORIZER DEVICE
Abstract
An electrically heated vaporizer having a pair of prongs to be
plugged into a wall socket for vaporizing a chemically treated
diffusable tablet for deodorizing, disinfecting, perfuming or
otherwise treating air of a room, is formed of a hollow housing
suitably foraminous to enable air to flow through so that air
currents induced by the heater pass about the tablet to effect
diffusion action. The housing is separated into two compartments by
a partition on one side of which is the electrical heater, and the
other side provides a shelf for the tablet. The partition panel has
a sizeable number of small perforations for air passage, and
oppositely arranged upwardly and outwardly inclined wings
predetermine the position of the tablet and also baffle the air to
the outlet passages.
Inventors: |
Costello; Hal F. (Toledo,
OH) |
Assignee: |
Coswell Products, Inc. (Toledo,
OH)
|
Family
ID: |
22812655 |
Appl.
No.: |
05/217,818 |
Filed: |
January 14, 1972 |
Current U.S.
Class: |
392/392;
261/DIG.65; 392/390; 422/305; 261/DIG.89 |
Current CPC
Class: |
A61L
9/03 (20130101); Y10S 261/65 (20130101); Y10S
261/89 (20130101) |
Current International
Class: |
A61L
9/015 (20060101); A61L 9/03 (20060101); A61l
003/00 () |
Field of
Search: |
;214/271,272,275,276
;21/110,117,119 ;128/192 ;43/129 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Albritton; C. L.
Claims
What I claim is:
1. In a vaporizer device designed to be plugged into an electrical
wall outlet having a hollow body structure separated to provide a
lower chamber and an upper chamber, there being air inlet port
means in the lower chamber and air outlet port means in the upper
chamber, the port means in the upper chamber comprising a plurality
of elongate closely spaced ports, and a back casing member having a
resistance-type electrical heating element extending into the lower
chamber, the improvement which comprises a partition or shelf panel
for supporting a chemically treated tablet and fitting said hollow
body structure for providing said chambers and having a plurality
of closely spaced holes covering an area of the order of three
fourths the area thereof, and wings or flaps on opposite sides of
and forming a part of said shelf panel and inclining upwardly and
outwardly and terminating respectively in close juxtaposition to
the outermost air outlet ports for directing the air to same and
also insuring the positioning of the tablet thereon.
2. A vaporizer device as claimed in claim 1, in which the free end
portions of said wings project into the respective outlet ports to
engage the outer edges thereof.
3. A vaporizer device as claimed in claim 1, comprising inwardly
projecting nubbins on said back casing member adapted to overlie
said panel for assisting in retaining same in position of use.
Description
INCORPORATION BY REFERENCE
There is incorporated in this specification by reference, the U.S.
Pat. No. of H. F. Costello, 2,513,919, dated July 4, 1950, and
entitled VAPORIZER.
SUMMARY OF THE INVENTION
In general, the vaporizer which forms the subject matter of this
application is disclosed in the U.S. patent referred to above and
incorporated by reference in this application. Such vaporizer has
been successfully used for many years, but it is found that the
partition which separates the inside of the dome-like body into
upper and lower compartments has not been entirely satisfactory.
One reason for this is that the chemically treated tablet which
rests on the upper side of this partition has not infrequently
become misplaced to the detriment of its vaporization. Furthermore,
the perforation or holes through the partition have not been
entirely adequate to take care of the flow of air from the inlet
apertures to the outlet apertures. Finally, such partition becomes
somewhat displaced due to warpage or other causes.
According to this invention, a new and improved partition or shelf
is provided having a large number of or a bank of relatively
closely arranged perforations occupying nearly two-thirds of the
area of the shelf, and in such position that the chemically treated
tablet can cover most of the apertures so that the flow of air
through the apertures and over and around the tablet is greatly
improved. For insuring the positioning of the tablet and to act as
a baffle or deflector for the air currents passing through the
body, at the opposite sides of the bank of holes and directly
beneath the outlet of openings are outwardly and upwardly inclined
wings or baffles. These wings not only predetermine the proper
positioning of the tablet, but also aid in the directional
movements of the air currents as they pass from the body.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a composite perspective view of a body and the cover
plate constituting the vaporizer; and
FIG. 2 is a top perspective view of the partition panel.
DETAILED DESCRIPTION OF THE EMBODIMENT
The illustrated embodiment of the invention comprises a hollow body
10 of dome shape which is closed at one end and open at the other.
Closing the open end of the body 10 is a detachable cover plate 11
which has a stepped portion 12 fitting inside of the body. On the
cap and the body are bosses 13 and screws 14 pass through the
bosses on the cover plate into screw threaded engagement with the
bosses on the body.
The cap is provided with a pair of prongs 15 for electrical
connection to a wall outlet as will be readily understood. The
prongs 15 are arranged at an inclined angle with respect to the
vertical center of the vaporizer in position of use, the
arrangement and importance thereof being fully described in the
referenced patent.
On the inner side of the cap or cover plate 11 is an electrically
resistant type heater 16, the ends of which are connected
respectively to the prongs 15 by wires 17. Arranged above the
heater in the cap is an elongate access hole 18 through which a
chemically treated tablet can be inserted. Adjacent the lower edge
of the hole 18 is a pair of inwardly projecting nubbins or
projections 19 for purposes hereinafter described.
Formed in the lower portion of the body 10 is a series of elongate
parallel slots 14 (in this instance, four such slots are provided),
and these afford inlet of air from the outside. In the upper
portion of the body opposite to the inlet slots in a series of
parallel closely spaced outlet slots 21 (in this instance there
being six of such slots).
The bosses 13 on the body are arranged approximately midway of the
vertical inside thereof and project substantially end to end so as
to provide ledges on which to support a partition or shelf panel
22. When in place, this panel divides the inside of the body into
upper and lower chambers, the heater 16 being in the lower chamber.
The panel 22 is in the form of a flat, relatively thin piece of
fiberboard or other similar material having a front edge 23 rounded
to fit intimately the front end of the housing to provide a snug
fit. When the cover plate or cap 11 is in place, the laterally
spaced nubbins 19 extend over the upper edge of the partition panel
and insure that it remains in proper position.
In the central portion of the panel is a bank of holes 24 covering
approximately two-thirds of the area of the partition and these are
arranged beneath the outlet holes 21 and directly above the inlet
holes 20. Formed by slitting and bending there are provided two
baffle plates or wings 22' at the opposite ends of the banks of
holes, each wing inclining upwardly and outwardly and terminating
in the respective outermost outlet hole 21 at the outer edge
thereof. These wings have a twofold function. They predetermine the
position of the chemically treated tablet, indicated at T, so as to
insure that it is properly arranged relative to the holes 24, and
additionally baffle or direct the stream of air passing through the
body to the outlet holes and preventing any eddy currents which
otherwise would develop at the sides. This insures that the most
effective use of the stream of heated air takes place.
It will be understood that the tablet indicated at T is a volatile,
or air-diffusible substance of a character meeting the air
treatment which the vaporizer is intended to accomplish. It may be
of a deodorizing, perfuming or germicidal nature.
* * * * *