US1729103A - Method of collecting dust - Google Patents

Description

Sept, 24 19296 P GASNER ET AL METHOD OF COLLECTING DUST Original Filed Dec, 1, 1928 y ATTORNEYS Patented Sept. I 24, 1929 UNITED STATES PATENT OFFICE PHILIP GASNER AND SIGMUND GASNER, OF YORK, N. Y., ASSIGNORS TO FANNIE GASNER, OF NEW YORK, N. Y.

METHOD OF COLLECTING DUST Original application filed December 1, 1928, Serial No. 323,114. Divided and this application filed June 22, 1929. Serial No. 372,887.

suitable material so as to eliminate the ne-.

cessity of dumping the dust and dirt out of the cloth filter bag which is nowordinarily employed for this purpose.

This application is a division of our application, Serial No. 323.114; filed in the United States Patent Office on December 1st, 1928, for improvements in Method of and mechanism for collecting dust.

. Other objects of our invention will be set forth in the following description and drawings which illustrate a preferred embodiment thereof, it being understood that the above general statement of the objects of our invention is intended merely to generally explain the same and not to limit it in any manner.

Fig. 1 is an elevation of the essential part of the vacuum cleaner attachment, used in connection with our invention.

Fig. 2 is a sectional view on the line 2-2 of Fig. 1. i

.Fig. 3 is a perspective view showing the device in position.

The vacuum cleaner V may be of any suitable type. The standard type of vacuum cleaner comprises a metal housing having a nozzle N, a motor M, and an outlet noz- 'zle 0. It is now customary to connecta bag made of porous .fabric to this outlet nozzle. This bag permits the air to escape therefrom, but retains the dust. It has also been pro- 40 posed to place a paper bag within said fabric bag, said paper bag being also connected to the outlet nozzle, in order. to collect the dglst in a paper bag which is readily remova e.

However, in this construction it was necessary to firmly support the wall of the relatively fragile paperbag, by the wall of the cloth bag.

According to our invention, it is not necessary to locate the paper bag within any other receptacle although thiscan be done without departing from our invention. However, if the paper bag is enclosed in a cloth bag or other receptacle, it is not necessary to support the wall of the paper bag by the wall of the cloth bag, or other receptacle.

A hose 1 is provided with a coupling member 2 by means of which it can be coupled", to the outlet nozzle 0 of the cleaner. This hose 1 comprises an outer wall 2 made of a suitable fabric. and an inner lining 3. This inner lining 3 is not uniform throughout the length of the hose 1. Said lining is substantially air-tight up to about the point A of the hose 1. For example, said lining can be made of rubber or relatively tightly-woven fabric up to about the point A. The lining is made of relatively porous material in the lateral leg thereof and up to the coupling member 4. The object of this is to permit the air to escape sufficiently from the upper part of the hose 1. The top of the hose is provided with an ordinary clamp 5, having a hook which can be connected to the handle of the vacuum cleaner. However, it is not necessary that the hose 1 should be 1 clamped or mounted as shown in Fig. 3,

since the essential feature of our invention is to provide a hose which permits a sufficient escape of air therefrom.

While we prefer to have the air current travel through the relatively long straight portion of the hose up to about the point A, without any substantial escape of air, so as to create a long. air current of considerable velocity, it would not be departing from our invention if some of the air did escape prior to reaching the point A. A bag B is clamped to the coupling member 4;. Any suitable coupling device can be employed. The bag or receptacle B canbe made ofordinary relatively porous paper, or it can be made of waxed paper, or it can be made of celluloid, or other impermeable material. If a celluloid receptacle is used, it can be provided with a valve for-iremoving the dust therefrom, and if desired, a"receptacle"made of impermeable material uch as celluloid or the like, could have-a panel or part made of porous cloth or the like. Since the air escapes between the v the air also escapes from the lateral branch of the connecting means, said lateral branch being directly connected to the receptacle B. The axis of the lateral branch may be considered as being substantially horizontal, so that this is non-aligned with the axis of the receptacle, and the axis of the top part of the vertical branch of the hose 1 (namely, above the point A), is also out of alignment with the axis of said receptacle B. The axis of the vertical leg of the connecting means is substantially defined by the arrow X shown in Fig. 3, the axis of the lateral branch of the connecting means is substantially defined by the arrow Y, and the axis of the receptacle B is substantially defined by the arrow Z.

We prefer that the coupling provided by the member 7 should not be absolutely air tight so that the air can escape to a limited extent from the top of the receptacle B. The operation of our device is as follows If the hose or connecting member 1 was absolutely air-tight, then the air pressure created by the blower of the vacuum cleaner would burst a receptacle made of relatively fragile material such as paper. However, by permitting suflicient air to escape from the upper part of the connecting hose, a fragile paper bag can be used without bursting. The air has sufficient velocity when it reaches the point A to carry the dust around it, and to throw the same into the receptacle even though the air escapes from the lateral leg of the connecting member. 1 Experience has shown that substantially all of the dust is collected in the receptacle B. If an impermeable collecting receptacle is used, then the slight escape of air at the top portion thereof enables the air current to throw the dust into the collecting receptacle B. It is not absolutely necessary to have a slight leak in the couplingbetween the dust collecting receptacle and the connecting member 1, al-

though this is preferable. It will be noted 1 that a substantial part of the air escapes in the first part or leg. of the device while the air is not moving in the direction of the collecting receptacle.

Generally speaking, our invention covers any device whereby the air current is forced into a dust collecting receptacle connected to the outlet nozzle of the vaccum cleaner by means of an intermediate connecting member,

enough air being allowed to leak out of the attachment or out of the receptacle to enable .the dust to enter and to remain in the recepta cle. It will be noted that the air and dust move continuously in a current which follows the wall ofithe connecting means, so that the dust is deposited into the receptacle, without the necessity of forming a counter current. On the contrary, in prior devices such as shown in U. S. Patent No. 1,514,875 dated November 11, 1924, the air current was effective to force the dust into the receptacle, only if a counter current was formed in the air current, after it issued from the outlet nozzle of the vacuum cleaner.

We have shown a preferred embodiment of our invention, but it is clear that numerous changes and omissions can be made without departing from the spirit of our invention.

We claim:

1. A method of collecting dust in a receptacle which consists in aspirating the dust by means of an air current which projects the dust into the receptacle without producing a counter current of dust, allowing some of the air to leak out of said current before the dust enters the receptacle, said air being allowed to leak out of said air current at a point where said air current changes in direction to anove towards the receptacle to deposit the ust.

2. A methodof collecting dust in a receptacle which consists in aspirating the dust by means of an air current which projects the dust into the receptacle without producing a counter current of dust, allowing some of the air to leak out of said current before the dust enters the receptacle, said air being allowed to leak out of said air current at a point where tures.

PHILIP GASNER. SIGMUND GASNER.

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