US 2826758 A
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Description (OCR text may contain errors)
March 18, 1958 A. KAHN 2,826,758
VENTILATED CLOTHING AND APPARATUS Filed Use. 15, 1955 Jig- INVENTOR. H/eza/me/ Ka'fi/z 2,826,758 lc Patented Mar. 18, 195
VENTILATED CLOTHING AND APPARATUS Alexander Kalin, Amityville, N. Y.
Application December 1-5, 1955, Serial No. 553,386 1 Claim. (Cl. 2-.-.8 :1)
This invention relates to ventilated clothing and more particularly to impermeable clothing having exhaust apparatus in combination thereto.
The use of impermeable clothing is essential to civilian defense personnel and to combatants engaged in chemical, bacteriological and radiological warfare, as well as to others.
Such clothing, for example, a suit, being rubberized becomes most uncomfortable to a wearer thereof due to the accumulation of body moisture therein.
It is an object of this invention to provide apparatus to remove the moisture from within an impermeable suit.
It is a further object to provide an exhaust apparatus adapted for attachment to an impermeable suit.
It is a further object of this invention to provide a battery operated exhaust apparatus of simple, rugged and light weight construction and design.
It is another object of this invention to provide an impermeable suit -of clothing having a battery operated air exhausting apparatus secured thereto.
These and other objects of this invention will become apparent upon reading the descriptive disclosure herein taken in conjunction with the drawing in which:
Fig. 1 is a perspective view of an impermeable suit, broken away in part, and showing the manner of attaching the exhaust apparatus to the back of the suit and showing further an air filter disposed in the sleeve of the suit.
Fig. 2 is a transverse section of the exhaust apparatus showing the manner of securing an exhaust fan to the impermeable suit and showing further the manner of securing a miniature battery operated motor to the exhaust fan, the wiring of the electrical battery being omitted for purposes of simplicity,
Fig. 3 is a rear view of the motor and battery assembly with the casing thereof broken away in part to show the manner of wiring the battery to the motor,
Fig. 4 is a wiring diagram of the circuit employed, and
Fig. 5 is a cross-section of the exhaust fan showing the impeller blades therein.
Turning now to the drawing and particularly to Fig. 2 a miniature conventional exhaust fan having a plurality of apertured fastening lugs 11 is secured to a centrally apertured rigid rectangular support plate 12 and to the back segment of the impermeable suit 13 by means of a plurality of rivets 14 disposed through apertures of the fastening lugs 11.
Preferably a layer of adhesive material or a strip of apertured sealer sheet 15X is disposed and secured between plate 12 and the pliable suit 13 thereby producing a hermetical seal therebetween.
The suit material may be rubberized cloth, plastic material or any equivalent pliable material impermeable to air and moisture. Also in lieu of rivets 14 other conventional means of attachments may be employed such as bolts with wing nuts, etc.
According to this invention a dry cell battery 15 of .shaft 23 extends through end wall 16 provided therefor.
.2 suitable Power is secured to the circular back wall 16 of the exhaust fan 10 through an intermediate insulator plate 17.
A pair of suitable spring clips 18 are secured in spaced relationship to one another to insulator plate 17 by means of metal screws 19, said clips being disposed in face-toface relationship at a distance adapted to sei-zingly secure dry cell 15'therebetween. Y
A miniature motor 20 of suitable construction and adapted to be powered by dry cell 15 is provided with a rotor shaft 21. The exhaust fan 10 is provided with a conventional rotatable impeller 22 having a conventional shaft 23 secured to the impeller end wall 24. Impeller through an aperture As shown in Fig. 2 the impeller shaft 23 is secured removably to the rotor shaft 21 by means of a tubular coupling 25 and set screw 26. Thus the rotor shaft 21 and the impeller shaft 23 are in linear axial relationship to one another.
The motor 20 is provided with a base plate 27. A motor support plate 28 is secured by means of metal screws 29 to the bottom section of end wall 16 of exhaust fan 10.
The motor base plate 27 is in turn secured to support plate 28 by means of metal screws 30. Thus the motor 20 is rigidly secured to the exhaust fan 10 so that shaft 23 of the fan impeller can not be thrown out of alignment with motor shaft 21.
As shown in Figs. 2 and 3 a conventional snap switch 31 is secured to the back motor plate by means of an L-shaped flange 32 and metal screws 33. A protective cylindrical casing 34 of suitable cup-shaped construction and provided with a suitable aperture for switch 36 is disposed over the battery motor assembly and press fitted to the exterior of the circular exhaust fan housing.
As shown in the wiring diagram and Fig. 3 the positive end of the battery 15 is electrically connected through wire 35 to the switch 31 and the switch 31 is in turn electrically connected to motor 20 by wire 36.
The other end of the battery 15 may be grounded to the metal framework of the fan 10 in any one of a number of ways, as by wire 37, while the motor 20 may be grounded to the framework of the motor 20 by wire 38.
The use of wires 37 and 38 may be entirely eliminated since the grounding of the battery 15 and motor 20 may be made directly to the metal structure of the fan-motor assembly since the fan and the motor are in metal to metal contact with each other.
In the operation of the exhaust fan of this invention atmospheric air is pulled into the impermeable suit 13 through air filters 39 disposed in each sleeve and in each pants leg. As shown in the drawing, the extremities of the appendages and the neck portion are provided with conventional elastic seizure means to provent entry of air at these places. Thus the only air sucked into the impermeable suit enters through the air filters located in the extremity of each appendage. These filters are of a suitable construction to filter out chemical vapors, germs and radioactive dust. The impeller 22 sucks the air from the filters about the body of the wearer and thence into fan 10 whence the moisture laden air is exhausted through exhaust fan port 40 out into the atmosphere.
The fan-motor assembly of this invention could be reversed so that the fan 10 is a blower fan in lieu of an exhaust fan. In this event a suitable filter is disposed over fan port 40.
This invention has been described with reference to an illustrative embodiment but it is not to be limited to this illustration as it is an invention of broad scope.
In combination a cover-all garment of clothing impermeable to gas comprising a body portion having a central aperture in the back wall and leg and arm appendages secured at their respective extremities in an air tight manner to the body of the wearer, each appendage having at least one air filter therein, an apertured support plate secured in an air tight manner to said garment about the central aperture in the back wall, a cylindrical fan housing having integral securing lugs at the front open end and having an apertured wall at the other end, said cylindrical fan housing being secured to said support plate at the front end by means of said lugs, an exhaust impeller disposed in said fan housing and having an impeller shaft protruding suitably through the aperture of said housing end wall, a battery operated electrical motor for actuating said impeller shaft disposed with the motor axle in line with said impeller shaft, coupling means securing said motor axle to said impeller 4 shaft, support means for mounting said motor rigidly secured to said end wall of said housing, a suitable battery secured to said end wall of'said housing, electrical conduit means electrically connecting said battery to said motor, and electrical switch means connected to said battery and said motor for actuating said motor.
References Cited in the file of this patent UNITED STATES PATENTS 432,728 Eliel July 22, 1890 1,423,190 Clements July 18, 1922 2,084,173 Wexler June 15, 1937 2,181,175 Cohen Nov. 28, 1939 2,715,226 Weiner Aug. 16, 1955 2,734,441 Williams Feb. 14, 1956 FOREIGN PATENTS 681,687 France May 17, 1930