US1558006A

US1558006A - Vacuum cleaner

Info

Publication number: US1558006A
Application number: US545648A
Authority: US
Inventors: Fisker Peder Andersen
Original assignee: Messrs Fisker & Nielsen As
Current assignee: Messrs Fisker & Nielsen AS
Priority date: 1922-03-22
Filing date: 1922-03-22
Publication date: 1925-10-20
Anticipated expiration: 1942-10-20

Description

Oct. 20, 1925. 1,558,006

. P. A. FISKER VACUUM CLEANER Filed March 22, 1922 Patented 20, 1925. v

"UNITED STATES PEDER mnnnsnn rrsxnn, or eornimnenn, DENMARK, ASSIGNOR TO nzssns. rrsxna Y 1,558,006 PATENT OFFICE.

& NIELSEN A/S, OF COPENHAGEN, DENMARK.

VACUUM CLEANER.

Application filed larch 22, 1922. Serial No. 545,648.

To all whom it may concern:

Be it known that I, Penna Armnnsnn Fis- KER, subject of the Kingdom of Denmark, and residing at Copenhagen, Denmark, have invented certain new and useful Improvements in Vacuum Cleaners, of which the following is a specification.

The present invention relates to an improvement in vacuum cleaners, especially the small, easily transportable vacuum cleaners held by the hands during the cleaning and in which the suction nozzle is located 0n the vacuum cleaner proper. The present invention deals particularly with the construction of the vacuum cleaner housing or casing. The complete casing of the vacumm cleaner comprises two main chambers, detachably connected with each other and one of which chambers forms a filter chamber solely, and completely encloses the filter, while the other chamber forms a machine chamber containing the motor and the fan. The machine chamber is divided into two intermediate plate w ch plate extends between the two separate portions of the propeller. In this manner one portion of the fan is located in one of the parts of the ma' chine chamber, while the other portion of the fan is located in the other chamber. The machine chamber has the handle of the machine pivoted to it at one end, while the other end is detachably connected to the filter chamber. A further advantage secured by this construction is that both bearings of the motor and'fan shaft are readily accessible because of their being located at the extreme ends of the shaft and further forming parts of the upper and lower walls of the machine chamber. Because of the fan of the vacuum cleaner being located between the lower bearing and the rotor of the motor the construction of the vacuum cleaner may be much simpler than has been pints by means of an Fig. 4 is a detail of Fig. 2 on an enlarged scale;

Fig. 5 is a detail showing the filter holdmg means.

The vacuum cleaner which is usually cigar or torpedo-shaped consists'of two portions, viz, the housing 1 containing the suction fan and the motor, and the conical portion 2 containing the filter. As shown in Fig. 2 the housing 1 consists of two portions, a lower 3 and an upper 4 held together by screws 5 or the like. The bearings of the rotary shaft are located at the upper and lower wall of the housing and according to the invention the lower bearing 6 is located at the outside of the lower wall of the housing, so that the bearing is easily accessiblc and simultaneously the construction of the entire housing 1 is made much smaller than when the lower bearing is located between the fan and the motor, as is the case in prior constructions.

In the constructional form shown in Figs. 2 and 4 the intermediate plate 7, which leads inwardly the air leaving the first por* tion 8 of the fan so that it passes into the second portion 9 of the fan near the shaft, is held in the housing 1 by having its edge pinched between the walls and 4 forming the two chambers of the housing 1. The intermediate plate 7 may carry or be brovided with ribs 10 carrying another plate 11 (the so-called hole plate), which serves also the purpose of leading the air in the correct manner in the housing so that it passes the same in the manner indicated by the arrow in Fig. 2.

The conical portion 2 containing the filter 12 is detachably secured to the housing 1, by a pair of clamps 13 oivotally connected on the filter container 2 and so shaped that they may expand resiliently when turned in sidewardly over the screws 5 assembling the two portions of the housing 1. The clamps 13 consist of two branches connected by a cross piece 14 at the upper end of the clam and by a little bolt or pin 15 carrying a rol er 16 which may be pressed on to the head of the screw 5 whereby the portion 2 is secured to the housing 1 by a resilient pressure arising from a small deformatlon of the clamps 13 caused by the closing.

The filter 12 is located in known manner in the conical filter container 2 where it is carried, according to the invention, by a tube open at both en special filter fastening, the form of which depends ontha-t of the filter. In the constructional form shown (in Fig. 5) it consists of a perforated, substantially discshaped part 17, having a tubular or barshaped extension 18 supporting the lower portion of the filter. The disc-sha ed portion 17 carries along its edge a rub or ring 19 making the joint between the housing 1 and the filter container 2 air-tight when the filter is in place. The portion 17 is so shaped that the edge of the filter may be easily fixed thereto, as by a cord 7 laid around the edge of the filter which surrounds the projection extending down- Wardly from the portion 17. As abovementioned the lower end of the filter is held by a bar or'a tube 18 terminating in a suitably shaped head to which the filter 12 is secured.

As indicated in Fig. 1 the vacuum cleaner is provided with a tubular handle 21 pivota-lly connected with the housing 1 so that it may be swun into a-position along side of'the housing 0 the vacuum cleaner during transport or when ,it is to be stored. As mentioned, the handle is in the form of a tube which serves in proper manner to receive the electrical connections not shown in the drawings. The handle may be se- Lc'ured in the various positions by a suitable butterfly or wing nut 22, Fig. 3.

The lower portion of the filter container 2 has formed on its end a cylindrical extension 23 on which the suction nozzle 24 is pivotally mounted.

Within the lower end of the filter chamber 2 is a check or fla its and made of a thin piece of fabric or the like. When the vacuum cleaner is operating this tube will be sucked up so that it stands almost vertical and forms an open tube as shown in Fig. 2. As soon as this suction ceases this tube will collapse owing to the more or less vertical position of the vacuum cleaner, and in collapsing it will close the lower end of the container 2 so that the dust therein is prevented from falling out. I

The constructional details shown and described may obviously be' varied without departing from the principle of the invention.

Claims:

1. An improvement in vacuum cleaners of that kind which are held by the hands valve 25 formed of a.

during the cleaning, com rising at filter chamber and a machine 0 amber, a filter completely contained in the filter chamber, an intermediate plate in the machine chamber dividing said chamber into two compartments the joint between the two compartments of the machine chamber bemg along the edge of the intermediate plate, peripherally located means securing the two compartments to each other, a motor in one compartment of the machine chamber, a suction fan in said compartment in axial alignment therewith, a second axially aligned fan in the other compartment of the machine chamber, and detachable connecting meansfor securing the filter chamher to the machine chamber which connecting means are held in position by the per.

as set forth in claim 1, wherein the detachable connecting means for securing the filter chamber to the machine chamber consist of resilient deformable clamps which are held in securing position by being stretched over the peripherally located securing means which secure the two compartments of the machine chamber together.

4. A11 im rovement in vacuum cleaners of that kind which are held by the hands during the cleaning comprising a filter chamber and a machine chamber, means for detachably connecting the two chambers, a filter completely contained in the filter chamber said filter chamber being provided with a cylindrical extension for the attachment of a nozzle, an intermediate plate dividing the machine chamber intotwo compartments, a motor and an axially aligned suction fan in the other compartment, peripherally located means maintaining the intermediate plate in position and securing the two compartments to each other, said compartments joining each other along the ed e of the intermediate plate.

in testimony whereof I affix my signature.

PEDE-R ANDERSEN FISKER.