US 923776 A
Description (OCR text may contain errors)
s. DANI ELEWICZ.
FILTRATIVE IN HALER. APPLICATION FILED JAN.4, 1909.
Pa bented June 1', 1909.
vrzr gs lab f/li 4 IN VEN TOR.-
A T TORN E Y.
UNITED STATES PATENT OFFICE.
' SAMUEL DANIELEWIOZ, OF SAN FRANCISCO, CALIFORNIA.
FILTRATIVE INHALER. I
The object of the present invention is to provide an ap aratus for protecting the lungs and the bronciiial passages from the injurious efiects of impurities in the air, es ecially from smoke, or from dust or pow er produced by emery wheels, or in jute or other mills.
In the accompanying drawing, Figure 1 is a broken perspective view of the invention; Fig. 2 is a sectional view of the air purifier; Fig. 3 is a horizontal section of the mouth piece; Fig. 4 is a vertical section thereof.-
Referring to the drawing, 1 indicates a rjmouth piece adapted to be secured by any i suitable means, as by bands 2, around the mouth of the user. Said mouth piece is conformed to fit the face of the wearer around the mouth, and around the edge of said mouth iece is secured a rubber tube 3, which, tting closely against the face, prevents the passage of air to the mouth betweenthg edge of the mouth piece and the face. Extending from said mouth piece is a casing 4, here shown as rectangular, although it may be of any suitable form. Said casing is divided by a transverse partition 5 into a breathing chamber 6, and an .outer air reservoir 7, containing only air. In said partition 5 is an inwardly opening valve 8, which permits of air being drawn in from said reservoir 7 into said breathing chamber but prevents the passage of air in the opposite direction, and in the sides of said breathing chamber are valves 9 which permit of air being expelled from the breathing chamber but prevent the entrance therethrough into said breathing chamber. These valves are flap valves similar to those used in accordions.
The air reservoir converges to the front and terminates in a cylindrical neck 10, which is inserted on the end of a rubber tube.
11, the other end of which is inserted on to Specification of Letters Patent.
Application filed January 4, 1909. Serial No. 470,590.
a neck 12, at the to of a purifier 13. Said urifier 13 consists o a number of cylindrical oxes or compartments 13", 13 13", 13,
13", screwed together as shown at 14. Each of these compartments has formed in the bottom perforations 15 ermitting the air to ment 13 is fille asshown at a, with raw cotton saturated with compartment 13, 1s fil The next com artment '13 is filled, as
next compartment 14 is filled, like the compartment 13 with .raw cotton d in its natural condition. The next compartment 13 is filled with cotton 6 saturated with glycerin. Upon the u permost compartment 13 is secured a hoe 16 by which the device can be secured to the clothing of the wearer. At each inhalation, a considerable part of the air contained in the air reservoir is immediately drawn into the breathing chamber through the valve 8 and thence is inhaled, and, when exhaled asses out from the breathing chamber t rough the valves 9. The diminution of pressure thus occasioned in the air reservoir produces a suction causing the air to pass almost continuously through the successive compartments of the purifier into the air reservoir.
.The device is of great value for many trades, which, at present, are very injurious to health, as in eme grinding, jute mills, and many others, 'w ere the air contains large quantities of fine powder. It is also of value for firemen when it is necessary to enter buildings filled with smoke. It should be stated that, for complete protection of the lungs, a nose protector is fitted over the nose of the wearer, but, 'as this forms no part of the present. invention, it ismot illustrated herein.
An apparatus of the character described, comprising a mouth iece, means for securing the same to the head of the wearer, a casing on said mouth piece forming an air chamber, inlet and outlet valves for said casing, an air purifier, comprising a series of compart- Patented June 1, 1909.
glycerin. The next ed, as shown at b," with raw cotton in its natural condition.
shown at e, wit pulverized charcoal. The
pass therethrou h. T e lowest compartments removabl secured together, each In testimony whereof I have hereunto set formed with e orations to permit the air my hand in the presence of two subscribing to ass theret rough and filtering means in Witnesses.
sai compartments, a flexible conduit from SAMUEL DANIELEWICZ. 5 said air urifier, and a connection between Witnesses.
said conduit and the air chamber through FRANCIS M. WRIGHT,
the inlet valve, substantially as described. D. B. RICHARDS.