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Publication numberUS446053 A
Publication typeGrant
Publication dateFeb 10, 1891
Filing dateOct 27, 1890
Publication numberUS 446053 A, US 446053A, US-A-446053, US446053 A, US446053A
InventorsHans Bittinger
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Hans bittinger
US 446053 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

(No Model.)



Patented Feb; 10




SPECIFICATION forming part of Letters Patent No. 446,053, dated February 10, 1891.

Application filed October 27, 1890. Serial No. 369,459. (No model.)

To aZZ whom it may concern:

- Be it known thatI, HANS BITTINGER, a subject of the King of Bavaria, residing at Brunswick, Germany, have invented new and useful Improvements in Dust-Collectors, of which the following is a specification.

This invention relates to an apparatus for taking the dust and impurities out of the air by centrifugal force.

The object of the invention is to so construct the apparatus that a uniform motion takes place within the same and no agitation caused by the meeting of different currents.

The invention consists in the various features of improvement more fully pointed out in the claim.

In the accompanying drawings, Figure 1 is a vertical central section of my improved apparatus; Fig. 2, a top view of the same. Figs. 3 and 4 are corresponding views of a modification. Figs. 5 and 6 are corresponding views of a further modification.

The letter A represents a drum closed on top by a cover M, through which enters the air-inlet pipe E. This pipe may have a curved lower end, as in Fig. 1, or it may be placed in an inclined position, as in Fig. 3, or it may be of helicoidal form, as in Fig. 5.

At the lower end the drum A contracts to form a central dustdischarge opening B, which is opposite the air-admitting cover M. Through the center of cover M there passes the pipe It for discharging the purified air, this pipe being held in place by a suitable cruciform frame a. Around the lower end or it from the purified air.

be either hood-shaped, as in Fig. 1, orit may be horizontal, as in Figs. 3 and 5.

In the center of the apparatus a rarefaction of air is of course produced, which has a tendency to retard the eXit of the purified air and also to suck impure air up through opening B. To avoid this difficultya central pipe C is introduced in the apparatus, preferably from the top. This pipe admit-s air into the central part of the apparatus and prevents the rarefaction. The lower end of pipe 0 may be either flaring, as in Fig. 1, straight, as in Fig. 3, or curved outward, as in Fig. 5.

The operation of the apparatus will be readily understood. The impurities of the incoming air are by centrifugal force thrown against the inner face of drum A, and are thence discharged through opening B. The pure air leaves the apparatus t-hrough pipe B.

What I claim is In a dust-collector, the combination,'with a separating-drum provided with a dust-outlet at its small end, of the cover therefor having two openings, an inlet-pipe entering one of said openings obliquely to said drum, an airescape pipe passing through the other of said openings and provided with the annular defiector at its lower end, and the additional airinlet pipe passing centrally into the drum through the air-escape pipe, substantially as described.

In testimony whereof I have signed my- HANS BITTINGER.



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US2573192 *Dec 9, 1946Oct 30, 1951Directie Staatsmijnen NlCyclone
US2796949 *Dec 27, 1954Jun 25, 1957Gen ElectricVortex steam separator
US2836157 *Aug 3, 1954May 27, 1958Babcock & Wilcox CoForced flow vapor generator with multiple vapor and liquid separators
US2981369 *Nov 23, 1951Apr 25, 1961Bituminous Coal ResearchVortical whirl separator
US3199269 *Apr 25, 1960Aug 10, 1965Siemens AgParticle-from-gas separators
US3443364 *Dec 9, 1966May 13, 1969Bituminous Coal ResearchDust collector
US6829804Mar 26, 2002Dec 14, 2004White Consolidated, Ltd.Filtration arrangement of a vacuum cleaner
US6863702May 5, 2003Mar 8, 2005White Consolidated Ltd.Bagless dustcup
US7228592Nov 18, 2005Jun 12, 2007Electrolux Homecare Products Ltd.Upright vacuum cleaner with cyclonic air path