U.S. patent number 3,683,638 [Application Number 05/078,113] was granted by the patent office on 1972-08-15 for storage and drying cabinet.
Invention is credited to George S. Devon.
United States Patent |
3,683,638 |
Devon |
August 15, 1972 |
STORAGE AND DRYING CABINET
Abstract
This disclosure shows a drying and sterilizing cabinet
especially suited for use in hospitals. The cabinet is sealed and
has a dehumidifying chamber at its rear through which filtered air
flows. Bacteria are killed by an arrangement of ultra-violet rays
inside the cabinet.
Inventors: |
Devon; George S. (Erie,
PA) |
Family
ID: |
22141974 |
Appl.
No.: |
05/078,113 |
Filed: |
October 5, 1970 |
Current U.S.
Class: |
62/264; 34/278;
96/224; 422/24 |
Current CPC
Class: |
A61L
2/10 (20130101) |
Current International
Class: |
A61L
2/10 (20060101); F25d 023/00 () |
Field of
Search: |
;62/264 ;34/1
;21/54,102,74 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Wye; William J.
Claims
The embodiments of the invention in which an exclusive property or
privilege is claimed are defined as follows:
1. A storage and drying cabinet comprising
a cabinet enclosure made up of top, side and rear walls connected
together,
and a door swingably connected to the front of said cabinet,
a grill at the bottom of said cabinet defining a space and a
refrigeration unit in said space below said grill,
an opening adjacent the top of said rear wall,
a screen over said opening supported on said rear wall,
and an ultra-violet light supported over said screen,
heating means is provided in said space below said grill,
an air tube is connected to the outside of said back wall of said
cabinet,
a refrigerated tube passes through said air tube,
the upper end of said air tube being connected to said opening in
said upper part of said rear wall,
a receptacle at the bottom of said cabinet,
the lower end of said tube being connected to an exhaust port in
the lower part of said cabinet and blower means at the lower end of
said air tube whereby air is drawn from lower part of said cabinet,
passes over said refrigerated tube and thereby cools below the dew
point and is exhausted into the top of said cabinet while the
condensate from said air drains, through said air tube into said
receptacle.
2. The cabinet recited in claim 1 wherein two said doors are
swingably connected to the front of said cabinet and a central
panel is supported between said doors,
said doors making sealing engagement with said panel and said
cabinet when in closed position,
an ultra-violet tube connected to said panel on the inside
thereof.
3. The cabinet recited in claim 2 wherein an ultra-violet light
tube is fixed to said center panel,
and an ultra-violet tube fixed to each side of said cabinet on the
inside thereof.
4. The cabinet recited in claim 1 wherein a dehumidifying apparatus
is disposed in the bottom of said cabinet and a screen partition
separates said dehumidification unit from said cabinet.
5. The cabinet recited in claim 4 wherein said dehumidification
unit comprises a filter member dividing a space in the bottom of
said cabinet into two parts and an ultra-violet light in one said
part and a refrigeration unit in the other said part,
a fan associated with said refrigeration unit for drawing air from
said cabinet, over said ultra-violet light, and over said
refrigeration unit.
6. The cabinet recited in claim 1 wherein spaced tracks being
attached at the rear end of said rear wall and extending forwardly
therefrom,
said spaced tracks having shoulders and clamp means for supporting
articles,
said clamp means having T-shaped heads slidably supported on said
shoulders and slidable forwardly and rearwardly thereon whereby
objects supported on said clamps may be moved forwardly or
rearwardly in said cabinet.
Description
REFERENCE TO PRIOR ART
In all hospitals, the need for sterilizing equipment for patient
care is evident. Hospitals must offer sterilized equipment to
patients to prevent cross-contamination by infectious bacteria. The
methods of sterilization are varied, the goals, however, are the
same. All attempts to provide equipment free from living bacteria
bodies.
Sterilizing methods at present have two drawbacks; they have (1) no
sterile field for drying equipment and (2) no sterile field for
storage that is free from contamination and is continually
sterilizing equipment.
Present methods utilized by hospitals mainly require equipment to
be wet -- left hanging or draped by towels and exposed to be
ambient atmosphere. This exposure often leads to contamination of
the equipment and the possibility of cross-contamination to the
patient. The possibility of contamination of equipment once the
equipment is sterilized, even with gas and ultrasonic
sterilization, still exists, since no adequate provision is
provided to maintain equipment sterility when the equipment is
stored prior to patient use.
OBJECTS OF THE INVENTION
It is an object of the invention to provide an improved drying and
sterilizing cabinet.
Another object of the invention is to provide a drying and
sterilizing cabinet that is simple in construction, economical to
manufacture, and simple and efficient to use.
Another object of the invention is to provide an improved
sterilizing cabinet.
DESCRIPTION OF THE DRAWINGS
FIG. 1 is an isometric view of the sterilizing cabinet according to
the invention.
FIG. 2 is a view similar to FIG. 1 with certain parts broken away
to better show the inside of the cabinet.
FIG. 3 is a longitudinal cross sectional view taken on line 3--3 of
FIG. 1.
FIG. 4 is a longitudinal cross sectional view taken on line 4--4 of
FIG. 2.
FIG. 5 is a view taken at line 5--5 of FIG. 4, showing the rear
side of the panel.
FIG. 6 is a view of the dehumidifying chamber taken from the inside
of the back of the cabinet.
FIG. 7 is an enlarged view of the shelf.
FIG. 8 is a cross sectional view of brackets for attaching liquid
bottles.
FIG. 9 is a front view of tracks for supporting clamps or brackets
shown in FIG. 8.
FIG. 10 is a view of clamps of FIG. 8 and tracks of FIG. 9.
FIG. 11 shows clamps of FIG. 8 holding a bottle.
FIG. 12 shows clamp of FIG. 8 holding an object.
DETAILED DESCRIPTION OF THE DRAWINGS
Now with more particular reference to the drawings, a cabinet 10 is
shown having a top 11, back 12, sides 13 and 14, and door 15 and 16
connected to the cabinet by means of hinges 20. A center post 17
runs from top to bottom of the front opening of the cabinet and
provides a stop for the doors. The doors 15 and 16 have handles 19
and friction catches 21 which hold them in closed position. A
contact switch 22 is supported on each door and this switch is
connected to the lights inside the cabinet. A rubber gasket 23 is
fixed to the door and extends around the entire inside of the doors
to seal the doors against leakage of air into the cabinet when the
doors are closed. The rubber gasket is the type used in
refrigerators. A handle 19 is attached to each door so that they
may be easily opened. Nylon roller catches of the friction type are
fixed to the doors at 21 to hold them firmly in sealed position
against the gaskets. The cabinet itself may be of a convenient
height for use in hospitals and it may be, for example,
approximately 6 feet high, 4 feet wide and 24 inches deep. The
dimensions may be varied to accommodate the individual's need. The
particular size of the cabinet is not considered to be a part of
the invention.
Ultra-violet tubes 24 are fixed to the rear wall 12 of the cabinet
and to the side walls 13 and 14. Adjustable shelf bracket receiving
slots which are used in refrigerators and for supporting book
shelves, are indicated at 25. By means of such shelf rails or
brackets, racks may be supported in the cabinet to accommodate the
individual taste of the user.
The louvered door 18 is swingably supported to the front of the
cabinet below the doors 15 and 16. This louvered door 18 provides
an inspection panel which has a handle 28 at its lower front edge
and a sealing gasket 29 which extends around the periphery thereof
and seals to the front of the cabinet. A full width piano hinge 30
supports the door 18. The door 18 has small magnets supported at
spaced positions along it to hold it in closed position.
A screen filter 32 is supported on the cabinet opening behind the
door 18 and air may flow through the louvers 31 and through the
filter 32. The filter may be supported by means of spaced magnets
46 on its outer periphery in a manner familiar to those skilled in
the art.
A heating and dehumidifying unit is indicated at 33 below the
grating 34. This heating and dehumidifying unit is made up of
electric heating units 35 which are connected to a suitable source
of electricity and a small ultra-violet light 36 is attached to one
side of the compartment. A partition 37 is supported below the
condenser and refrigeration unit 38 which has a fan 39 for driving
air through the filter 40.
A control panel 41 is provided with control elements for
controlling the temperature of the refrigeration unit 38. The
control panel has a main control switch for all ultra-violet lights
and a switch for the exhaust fan and a control for the humidifier
and a control for the heating coil.
The wire mesh tray 132 shown in FIG. 2 may be supported in the
cabinet with hooks attached to the rear edge of tray 132 and
extending into the slots 25. The tray 132 may be made of wire mesh
so that air flowing through them will be slightly filtered.
An ultra-violet light tube 43 is supported on the filter panel 44
and spaced in front of the rear wall 13. An opening 45 is formed in
the wall 12 behind the panel 44 and the panel 44 allows filtered
air to flow through the opening 45, through panel 44 and over the
ultra-violet light 43 to sterilize the air. The panel 44 is held in
place on wall 12 by magnets 46. The filter panel 44 is supported
over the opening.
The dehumidifying chamber is best shown in FIG. 6. It has a panel
49 with a tube 150 formed in serpentine fashion into first, second,
third, fourth, fifth and sixth tiers as shown. A refrigeration line
151 passes through the tube 150 from top to bottom and is connected
to the refrigeration unit 38. A reservoir 153 is supported at the
lower part of the panel to catch drainage of condensate from the
tube 150. The tube condenses water from the air and drains it out
into the reservoir.
It will be seen that the exhaust port behind panel 44 is disposed
at the upper part of the dehumidification unit and an exhaust port
54 at the bottom. Thus air is drawn from the cabinet at the top
over the refrigeration tube and is cooled, and by natural
convection flows back into the cabinet at the bottom.
FIGS. 8-12 shows tracks and clamps for supporting objects in the
cabinet. Spaced tracks 50 and 51 are attached to the rear wall of
the cabinet and extend forwardly defining a space which receives
head 52 of clamp 53. T-shaped head 52 is received between tracks 50
and 51 and the head 52 slides on shoulders 54 of slots 55 so that
objects can be moved from front to back of the cabinet. The clamp
has jaws 56 and 57. Jaws 56 are fixed to head 52. Jaws 57 are fixed
to rods 58. Rods 58 slide in holes 59 and 60 in clamp 52. Spring 61
urges jaws 56 and 57 together. FIGS. 10, 11 and 12 show the clamp
53 holding a beaker 64, bottle 65 and object 66 respectively. Clamp
53 may be upright or suspended by tracks 50 and 51.
The foregoing specification sets forth the invention in its
preferred practical forms but the structure shown is capable of
modification within a range of equivalents without departing from
the invention which is to be understood is broadly novel as is
commensurate with the appended claims.
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