Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS855888 A
Publication typeGrant
Publication dateJun 4, 1907
Filing dateNov 19, 1906
Priority dateNov 19, 1906
Publication numberUS 855888 A, US 855888A, US-A-855888, US855888 A, US855888A
InventorsFriedrich Hecker
Original AssigneeFriedrich Hecker
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Suction-mouthpiece for exhaust devices.
US 855888 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)





SUCTlON-MOUTHPIECE Specification of Letters Patent.


Patented June 4, 1907.

I Application filed November 19, 1906. $eiial No. 344,124.

To all whom it may concern:

Be it known that I, FRIEDRICH HECKER, a citizen of Germany, residing at Munich, Bavaria, Germany, have invented certain new and useful Improvements in a Suction- Mouthpiece for Exhaust Devices; and I-do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

For cleaning, cooling or warming the air of closed rooms devices are known, in which the air is sucked in through a tube or pipe and then passed through a cleansing receptacle or filter.

The present invention relates to a mouthpiece for such devices, which will make them more especially adapted for use in hospitals and at the bedside of patients, for instance, in order to suck away the air in the vicinity of wounds or to rarity the air in cases of asthma. Such a sucking away of the air becomes often necessary, since on the one hand, a current of air causes a renewal of the air more es ecially only in the path of the current itse f, the air on either side being left more or less undisturbed, and because on the other hand a current or draft of air is injurious to many persons: This last fact must also be taken into consideration in the abovementioned special application of the herein described mouthpiece. On this'account the mouthpiece is so'constructed, that the current of sucked in air is uniformly distributed over a comparatively large area by means of small directing tubesT so that even in the case 1 of a powerful suctional current, and when the mouthpiece is spaced in immediate vicinity of the body of the patient, the suctional current is not felt by the person under treatment, or at least, not in an unpleasant or injurious manner.

It is apparent that this mouthpiece, in contributed over a comparatively large area, is also adapted for many other uses, for instance, for cleaning old and valuable pictures, since a strong air current limited to a small area would here injure the paint or surface of the picture.

' said pipe. sequence of its sphere of action being drs- In the drawing, Figure 1 shows a side ele- I vation of this mouthpiece, and Fig. 2 an enlarged longitudinal section. Fig. 1 at the same time shows one of the already mentioned devices in conjunction with which this mouthpiece is intended to be used.

' The'mouthpiece consists of an outer case a increasing in size toward the top, and closed at its upper end by a perforated plate h; inside the case the above-mentioned tubes 7c of small diameter, which serve to distribute the air-current, are secured. These tubes connect the holes 1) of the plate It with the narrow end of the case a, where they unite at Z.

The mouth iece is joined to an advisably flexible pi e leading to the receptacle 0, which is a a ted to cleanse, cool or warm the air, and which is itself connected with the suction-pump f by means of the pipe e.

What I claim as my invention and desire to secure by Letters Patent is:

1. In an exhaust device, thecombination, with a pipe, .of a mouth iece comprising a plurality of tubes having t ieirinner ends converging to form a connection with the pipe, and means for producing suction upon said 1 e. I p In an exhaust device, the combination, with a pipe, and a funnel-shaped casing con necting therewith at its smaller end, of a plurality of converging tubes within said casing having their ends grouped at the smaller, ends thereof, and means for producing an air current through the pipe by way of the tubes.

3. In an exhaust device, the combination, with a pipe, and a funnel shaped casing capped at its larger end and connecting at it smaller end with the pipe, of a plurality of tubes arranged within said casing with their inner ends grouped at the smaller end thereof and with their outer ends tapped through the cap, and an exhaust device coupled to In testimony whereof I hereunto aiiix my signature in the presence of two witnesses.



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2772625 *Jun 15, 1953Dec 4, 1956Olin MathiesonExhaust device
US5548866 *Jan 14, 1994Aug 27, 1996The Hoover CompanyCleaning solution applicator
US5738519 *Mar 21, 1995Apr 14, 1998Tenniswood; James R.Dental suction device
US20090317760 *Jun 22, 2009Dec 24, 2009Anthony Michael GadboisMulti-lumen aspirator device
Cooperative ClassificationA61C17/043
European ClassificationA61C17/04B