USRE13096E - Dust collecting apparatus - Google Patents

Description

G. R. BIMM.

DUST COLLECTING APPARATUS.

APPLICATION FILED JANA, 1910.

Reissued Mar. 22,1910. 13,096.

15 .72 L I? m Wbtwmeo 5] mm yutoz UNITED STATES PATENT OFFICE.

GEORGES ROBERT BIMM, OF PARIS, FRANCE.

DUST-COLLECTING APPARATUS Specification of Reissued Letters Patent. Reiss ed 3131. 22, 1910.

Original No. 878,329, dated February 4, 1908, Serial No. 384,543.

' 1910. Serial No. 536,437.

Application for reissue filed January 4,

To all whom it mayconcern:

Be it known that I, Gnonoias Ronnnr Y BIMM, a citizen of the Republic of France, residing atParis, in France, have invented .1 new and useful Improvements in or Relating to Dust-Collecting Apparatus. of which the following is a specification.

This invention relates to' apparatus for the removal of dust by suction and has for i its object to provide an apparatus which can be manipulated by hand by the single person required to move 'the nozzle of the I apparatus over the surface of the articles to i be cleaned.

In, the accompanyingdrawings which show three constructions according to this i cloth 18 1s insigmficant, and the operation invention, Figures 1 to 3, are views in longitudinal section of threedifferent constructions of the apparatus. and Fig. 4 is a plan of the construction shown in Fig. 3.

\Vith reference to Fig. 1 manually operable air cont-rolling mechanism is shown in the form of a pump body provided with a piston 11 which can be manipulated by hand by means of a rod 12 freely guided by a socketor sleeve 13 which forms an extension on the upper end of the pump body 10. Air inlet and exhaust valves .11 and 15 respectively are also formed in the pump body 10. To the lower end of the pump body 10 is connected in an air tight manner a nozzle chamber 16 within which is mounted a .frame 17 provided with a filtering means in the form of a clot-h 18 of very fine mesh through which air but not dust may pass. For simplifying the joint between the parts 10 and 16 the frame 17 is provided with a flange which is clamped between the members 16 and 10 when the various parts are assembled. In this construction as in that shown in Figs. 3 and 4 the cham- ,'ber 16 has its free end flattened so as to present a nozzle. orifice 19 of small width and of a comparatively great length. The orifice 19 is provided with flanges 20' suit- -ably bent to enable the apparatus to be moved along the articles to be cleaned without scratching or catching in them.

It will be understood that if the piston 11 is reciprocated in the pump body 10, when the piston is moved away from the valve 14, air will be drawn in through the latter after having passed through the conduit. 21 chamber 16 and the filter 18, while at the opposite movement of the piston 11, the l air drawn into the body l0, will be dis charged through the valve 15. The air drawn through the orifice 19 by the suction stroke will carry with it into the chamber 16, any dust situated on the surface of them articles along which the flanges 20 are moved and the air will be freed from dust of the frame 17 on which is mounted the filtering cloth 18. the resistance to the sueit) tio'n produced by the presence of the said of the piston is greatly facilitated by it.

Fig. 2 shows a construction of apparatus in which suction can be produced in av chamber arranged along the body'of the pump 10. To that end, a conduit 92 con meets the front portion of the pump body 10 to its rear portion. the piston rod 12 pas es in an air tight manner through the so sleeve 13 and the suction and discharge valves 14 and 15 are arranged in the rear portion of the body 10. I

In the modification illustrated in .F- 3 and 1, the conduit '22 provided as in the construction shown in Fig. 2, the 'rod 12 is again mounted in an air tight manner 1n the sleeve 13 and further'a pair ofvalvcs 14 and 15 are arranged at each end of the body 10, so that the apparatus is a double acting one, that is to say, it draws in dust laden air and discharges pure air at each stroke of the piston 11. Moreover. in the. construction shown in Figs. 2 and 3, the nozzle member 23 of the apparatus which is provided with flanges :20 and orifice 19. is mounted on the chamber 16 in such .manner that it can oscillate relatively to thc latter and so enables the chamber to follow any involuntary movement imparted to it by the 1'30 operator without raising the flanges 20 from the article being cleansed.

In the various constructions according to this invention. the dust accumulates in the bottom portion of the chamber 16 and is {6- moved from time to time by disconnecting the parts 10 and 16. The arrangement of the conduit 21 which opens at the upper portion of the chamber 16, prevents dust from falling back through the suction ori- 11o fice 19 after it has accumulated on the bottom of the chamber 16. The lower wall of the conduit 21 forms with the casing 16 a dust trap which etfectuall preventsthe dust -from escaping from the c amber 16 through the conduit 21. It will be obvious that when the device of my invention is in use it will be held in a slightly inclined position from the vertical and therefore the dust particles will lodge in the closed portion of the casing at the nozzle end thereof. The

wall 21, which together with the upper wall chamber a dust trap, and a pump communiv of the casing 16, forms the conduit 21 is conveniently recessed. to receive the cylindrical head of the nozzle 19 and the u per wall of the casing 16 extends over said cad and retains thesame in said recess.

,Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed I declare that what I claim is:

1. A portable dust collecting apparatus comprising in combination, a pum ,a-nozzle.

chamber communicating with sai pump, a nozzle movably mounted. on said chamber and adapted to be moved abreast of the surface to be cleaned, and an air filter interposed between said pump and chamber.

2. A portable ,dust collecting a paratus comprising in combination, a. nozzle chamber provided with a nozzle and a wall forming with the upper wall of said chamber a conduit and with the lower wall of said eating with said chamber.

3. A portable dust collecting a paratus comprising'in combination, a nozzle chamber provided with a nozzle and a wall forming with one wall of said chamber a conduit and with another wall thereof a dust trap, said wall and the walls of said chamorifice extendin nes'ses.

comprising in combination a pump, a nozzle chamber communicating with said pump, an air filter interposed between said pum and said chamber, a substantially oblong s aped nozzle provided with bearin flanges and an in the irection of its longer axis; sai nozzle being movably connected to the lower end of said nozzle chamber, and a communication between said orifice and sa1d nozzle chamber.

6. A portable dust collecting apparatus comprising in combination a pump, a nozzle -chamber communicating with said pump, an elongated filterinterposed between said pump and said chamber, and an oblong shaped nozzle,

ing in the direction of its longer axis, a pivotal support for said nozzle permitting it to oscil communication between said orifice and the nozzle chamber.

In witness whereof I haxe afiixed my sigprovided with bearing flanges and an orifice therebetween extendate about its longer axis, and a nature, in presence of two subscribing wit- I GEORGES ROBERT BIMM.

7 Witnesses: L i I Aucus'm BIMM,

SAraIRY.

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