US2142978A

US2142978A - Suction nozzle

Info

Publication number: US2142978A
Application number: US87384A
Authority: US
Inventors: Eriksson-Jons Anders
Original assignee: Electrolux Corp
Current assignee: Electrolux Corp
Priority date: 1935-07-02
Filing date: 1936-06-26
Publication date: 1939-01-03
Anticipated expiration: 1956-01-03

Description

1939- A. ERlKSSON-JONS 2,142,978

SUCTION NOZZLE Filed June 26, 1956 A ATTORNEY.

Patented Jan. 3, 1939 ED STATES PATENT OFFICE SUCTION NOZZLE Application June 26, 1936, Serial No. 87,384 I In Switzerland July 2, 1985 1 Claim. (01. 15-155) My invention relates to suction nozzles for use in connection with a vacuum cleaner and particularly to duplex nozzles provided with openings of different sizes which may be selectively connected 5 to the source of suction. When the 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 remove dirt which the larger opening will not pick l0 up, the 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 drawing which forms part of this specification,

15 and of which:-

Fig. l is a cross-sectional view of a preferred embodiment of my invention;

Fig. 2 is a view similar to Fig. 1, but showing the parts in a different position;

Fig. 3 is a rear view of a portion of the nozzle showing a second embodiment of my invention;

and

Fig. 4 is a view similar to Fig. 3, but showing the parts in a difierent position.

Referring more particularly to Figs. 1 and 2, reference character l0 designates a hollow conduit adapted to be connected to a source of suction and to act as a handle for moving the nozzle I I over a surface to be cleaned.

The nozzle includes a preferably cylindrical portion l2 adapted to receive the end of conduit I0 and an elongated hollow body portion l3 formed with an elongated suction opening l4. Pivotally mounted at l5 within hollow portion-l3 is a small nozzle member I 6. .Small nozzle I6 is rigidly connected to pivot l5 which is journalled in the hollow portion [3 and extends to the outside of the hollow portion where a handle I! is rigidly-secured thereto. A weight I8 is secured to the end of the handle.

With the parts in the position shown in Fig. 1, the opening in smaller nozzle member I6 is aligned with cylindrical portion l2 whereby communication between these two parts is established. The

? presence of nozzle member l6 cuts off communication between elongated suction opening l4 and cylindrical portion l2. Application of a reduced pressure to conduit l0 hence causes air to flow in the small opening l9 in nozzle member l6, thus producing a concentrated suction at this opening.

When it is desired to utilize the elongated opening I4, the handle I1 is turned in a clock-wise direction to the position shown in Fig. 2. In this position the smaller nozzle member I6 is removed from the open end of cylindrical portion [2, whereby the interior of the cylindrical portion is connected to the interior of the elongated portion l3. Hence, suction is applied to elongated suction opening [4.

In the embodiment above described the nozzle member I6 is retained in either of the positions shown in Figs. 1 or 2 by the action of weight l8 connected to the handle. Instead of employing a weight for this purpose, a spring 20 may have one end connected to a pin 2| secured to hollow portion 13 and the other end connected to an arm 22 rigid with pivot l5. In the position shown in Fig. 3, the spring- 20 tends to rotate arm 22 in a counter clock-wise direction, thus maintaining smaller nozzle member I6 in an operative position! In the position of the parts shown in Fig. 4, on the other hand, spring 20 tends to rotate arm 22 in a clock-wise direction, thus maintaining the nozzle member IS in an inoperative position.

While I have shown and described two more or less specific embodiments of my invention, it is to be understood that this has been done for purposes of illustration only, and that the scope of the invention is not to be limited thereby, but is to be determined by the appended claim viewed in the light of the prior art.

What I claim is:

A suction nozzle including a hollow body portion and a hollow tubular portion adapted to be connected to a source of suction, said nozzle bein'g formed with a port between said portions, said body portion forming a large suction opening, a small tubular nozzle member pivotally mounted within said body portion, and means for pivoting said member to an operative position with one end in alignment with said port so that all air passes through said member and with the other end extending through said large opening, and to an inoperative position entirely within said body and out of alignment with said port.

ANDERS ERIKSSON-JONS.