US2492627A

US2492627A - Suction nozzle

Info

Publication number: US2492627A
Application number: US563198A
Authority: US
Inventors: Forsberg Axel Albert
Original assignee: Electrolux Corp
Current assignee: Electrolux Corp
Priority date: 1944-06-02
Filing date: 1944-11-13
Publication date: 1949-12-27
Anticipated expiration: 1966-12-27
Also published as: DE917331C; CH250350A; GB589471A; FR911005A

Description

Dec. 27, 1949 A. A. FORSBERG 2,492,627

SUCTION NOZZLE Filed Nov. 13, 1944 Fig. 4 Z4 IN VEN TOR.

fi rel H/ber-t fimsberg A TTORNE Y Patented Dec. 21, 1949 SUCTION NOZZLE Axel Albert Forsberg, Stockholm, Sweden, assignor to Eiectrolux Corporation, New York, N. Y.,

a corporation of Delaware Application November 13, 1944, Serial No. 563,198 In Sweden June 2, 1944 1 Claim. 1

My invention relates to nozzles and particularly to nozzles for use in connection with a vacuum cleaner in which the nozzles are provided with several openings of different sizes which may be selectively connected to the source of suction. When a larger opening is in use, it will cover a larger surface thereby increasing the speed of cleaning. However, if a concentrated suction is desired in order to removedirt which the larger opening will not pick up, a smaller opening may be brought into use.

The objects and advantages of my invention will be apparent from the following description considered in connection with the accompanying drawings which form part of this specification, and of which- Fig. 1 is a perspective view of a nozzle according to my invention, connected to a vacuum cleaner known per se;

Fig. 2 is a cross-sectional view taken on the line 2-2 of Fig. 3;

Fig. 3 is a cross-sectional view taken on the line 33 of Fig. 4; and

Fig. 4 is a plan view with the cover of the nozzle partially removed.

Referring to Fig. 1, reference character It designates a vacuum cleaner and Ii a flexible suction conduit connected with the suction side of said vacuum cleaner. To this suction conduit a tubular rigid, preferably metallic part I2 is connected which serves as a handle or wand, when the nozzle is passed back and forth over a floor or other surface, the operator normally standing erect and grasping t e upper end of handle I2. A portion, here s wn as the upper portion of the handle or wand i2 is angularly disposed to form a manipulating extension by which the handle or wand may be turned on its axis and with respect to the nozzle body to control the air passages as hereinafter set forth. To said handle, a nozzle I 3 is connected.

Referring to Figs. 2, 3 and 4, the hollow nozzle body i3 includes two parts, an upper nozzle member l4 and a lower nozzle member l5, preferably made of synthetic resin or a light metal alloy, which are connected by'screws l6. Between the nozzle parts l4 and I5 is formed a valve chamber in which a hollow valve housing member I'I, formed as a T-piece, is pivotally secured within the confines of the body with its opposite cylindrical ports l8 and I9 pivotable in bearings and 2| in the nozzle parts It and I5. These two ports 48 and [9, respectively are connected to a smaller suction opening 22 and a larger one 23 by

passageways

25 and 24, the junction of the passageways constituting a valve chamber formed by the parts It and I5. As will be seen from Figs. 2 and 3, both the suction openings are in the same plane and thus are simultaneously in operative position, that is directed towards the surface undergoing cleaning. The larger suction opening 23 is used for ordinary cleaning, while the smaller suction opening 22 is adapted to be used when picking up articles, as hairs, threads and the like, which tend to adhere especially strongly to the surface to be cleaned.

In order to enable either of the

nozzle openings

22 or 23 tobe selectively used, in the central branch 26 of valve housing ll, a valve member 21 is provided which, when rotated coaxially with the handle or wand of the suction conduit, selectively establishes communication between the vacuum cleaner unit and the two suction openings. Valve member 21, formed as a cylinder with a hemispherical bottom, is provided with a passage 28, opening to the side at an angle of to the upper portion to which the handle or wand i2 is rigidly but releaseably connected. By a spring ring 28 valve member 21 is retained axially in member I'I. In the position illustrated in Fig. 3, the air flow will enter through the large suction opening 23 and pass through passageway 24 and branch l9 to canal 28 and thence through handle l2 and suction conduit II to the vacuum cleaner I. .By rotating handle or wand l2 and thereby valve member 21 through half a revolution, communication may' be selectively established through passage 25 to opening 22 or through passage 2 to opening 23. Regardless of the rotary position of the valve member 21 it may be pivoted on a horizontal axis with pivotal movement of the valve housing I! in the bearings 20 and 2i so that the handle or wand may be raised or lowered without changing the setting of the valve member.

It will be understood that many different forms of nozzle openings may be employed in the nozzle above described. The present invention is not concerned with the specific form of such openings but merely with the arrangement in a nozzle for accomplishing the purposes set forth.

While I have described a more or less specific embodiment of my invention, it is to be understood that this has been done for the purpose of illustration only and that the scope of my invention is to be determined by the appended claim.

What I claim is:

A vacuum cleaner suction nozzle comprising a body member defining a pair of spaced parallel 3 auction openings having different cleaning characteristics and including an upper nozzle member and a lower nozzle member, a centrally disposed opening in the upper nozzle member, a pair of suction passageways formed in said body member between said upper and lower nozzle members and extending from said openings to said centrally disposed opening in the upper nozzle member, a T-shaped hollow tubular valve housing, the arms of the T and the stem of the T being hollow interconnected tubing, a pair of bearing surfaces in the suction nozzle adjoining the opening in the upper member and formed in part by the upper nozzle member and in part by the lower nozzle member for holding the arms of the T-shaped valve housing pivotally mounted therebetween one arm of said T being individually directed to connect with one of said pair of suction passageways while the other arm of said 1" connects with the other of said pair of suction passageways, while the stem of the T-shaped housing extends outwardly through the opening in the upper member, means for holding the upper and lower nozzle members together, a hollow cylindrical valve member having a hemispherical bottom and fitting into the stem of the T-shaped valve housing, resting on the bottom thereof and freely rotatable therein axially REFERENCES CITED The following references are of record in the iile of this patent:

UNITED STATES PATENTS Number Name Date 2,048,273 Ljungqulst July 21, 1936 2,283,428 Ellis May 19, 1942 FOREIGN PATENTS Number Country Date 25,712 France Jan. 30, 1923 597,246 Germany May 19, 1934