US2269446A - Suction nozzle - Google Patents

Description

Jan. 13,1942. g. EDSTIQOM 2 269,

SUCTION NOZZLE Filed June 26, 1936 INVENTOR.

. v a I 44! ATTORNEY.

Patented Jan. 13,

sUc'rIoN Nozznn Eric Edstriim, Stockholm, Sweden, assignor to Electrolux Corporation, Dover, Del., a corporation of Delaware Application June 26, 1936, Serial No. 87,398

' In Switzerland July 2, 1935 3 Claims. (ours-15s) My invention relates to suction nozzles for use in connection with a vacuum cleaner and flow through the open lower endof the valve member, whereby a concentrated flow or air is particularly to a nozzle provided with a large opening and having a valve member which may be selectively positioned so as to obtain a substantially uniform flow of air through the entire length of the nozzle opening, or so as to obtain. a concentrated flow restricted substantially to a small portion of the nozzle opening. When the entire 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 air flowing through the. entire opening will not pick up, a

more concentrated flow through the restricted portion may be obtained.

The objects and advantages of my invention will be apparent from the following descriptionccnsidered in connection with the accompanying drawingwhich forms part of this specification, and of which:

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

Fig. 2 is a cross-sectional view taken on the line 2-2 of Fig. 1;

Fig. 3 is a cross-sectional .view taken .on the line 3-3 01 Figs. 1 and 2; and

Fig. 4 is a view-similar to Fig. 3 but showing the parts in a different position. I

Referring to the drawing, reference character I designates generally a nozzle including a cylindrical portion ll adapted to be connected to a source 01 suction-and an elongated hollow portion l2 formed with an elongated suction opening it. Cylindrical portion ll communicates with elongated portion'l2 through an opening l4.- -A valve member I5 is rotatably mounted by means of a screw it within an elongated portion [2. The valve member includes cylindrical. .portions II and it between which are formed cates with both the opening ll to the cylindrical portion II and one side of the elongated portion l2, while the port communicates with the other side or the elongated portion. Consequently, air

will be drawn into the hollow'portion II from all parts oithe elongated portion.

If it is desired to obtain a concentrated flow of air at one point, the valve member I! is turned obtained, which is able to pick up objects which resist the more widely distributed flow through. the elongated opening it.

While I have shown and described one-more v or less specific embodiment of my invention it.

is tdbe understood that this has been done for purpose of illustration only, and that the scope of the invention is not to be limited thereby, but is to be determined by' the appended claims viewed in the light of the prior art.

What I claim is:

1. A suction nozzle including a hollow body portion having fixed structure forming an elongated undivided and continuous suction opening and an outlet adapted to be connected to a source oi suction, and a hollow .cylindrical member having an open bottom and ported sides rotatably mounted in said body portion, said member being rotatable between a position in which the lengthwise extent of said elongated opening said port's establish communication between said outlet and all portions of said elongated opening and a position in which said sides restrict the area of said opening which is in communication with said outlet to that defined'by the open-bottom of said member.

and provided with a port permanently in' communication with a portion of said opening which is restricted and deiined by said valve member when the latter is in one position and with a port which, communicates with an additional portion 01 said opening when the valve member is rotated to another position. v v

3. A suction nomle including a hollow body I having fixed structure forming an elongated unto the position shown in Fig. 4, where the port I! communicates only with the opening I4 and the port 20 is closed by the wall oi thenozzle.

In this position all of the air drawn in must divided and continuous suction opening, and a cylindrical rotatable valve member located cencommunicate with the end portions of said Opening when the valve member is rotated to another position.

ERIC n s raou.

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