US1864174A

US1864174A - Ozone generator

Info

Publication number: US1864174A
Application number: US481088A
Authority: US
Inventors: Dean W Davis
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-09-11
Filing date: 1930-09-11
Publication date: 1932-06-21
Anticipated expiration: 1949-06-21

Description

June 21, 1932. n. w. DAVIS ozons GENERATOR m m J a w, W m w N y 1 w m H W 2 A I A H PM, Q Q W l B U/ w4 m :55: E; v Y JVH/ E: G 55% N, x v 0 WW w m.

Patented June 21, 1932 I PATENT DEAN W. DAVIS, OI!" PENDLETON, INDIANA ozoNE GENERATOR Application filed September 11, 1930. SertaI' No. 481,088.

This invention relates to the art of ozone producing machines and particularly to electrical discharge machines.

The primary objects of the invention reside in the simplified structure permitting production at a low cost; in the safety from electrical shock to handlers of the device;

and in the unique combination and new association of the various elements entering into the structure, reference beingmade particularly to the discharge plates and method of mounting them.

These and other objects will become apparent in the folowing description of the invention, with reference being made to the accompanying drawing in which 1 Fig. 1 is a fragmentary top plan view of a machine embodying my invention;

Fig. 2, a fragmentary side elevation of the 2 machine; and

Fig. 3, a detail in vertical section on the line 3-3 in Fig. 2. N Referring to the drawlng in which like characters of reference indicate like parts in the several views, I form a base plate 10,

here shown as circular in shape, and from the center thereof, I punch the two upwardly .turned tongues 11 and 12, between which I secure the transformer core 13 by its lower end by the rivets 14 and 15. The core 13 is laminated and closed at both ends, and carries the primary and secondary windings combined in the coil 16 about one side thereof. On terminal 17 of the secondar winding of the coil 16 is ounded to the ase 10 by being secured un er the head of the rivet 14, and the other terminal 18 is secured to the cylindrical metal shell 19 which is positioned to be concentric of the plate 10 and surrounding the core 13 and coil 16. An outer shell 2O rests directly by its lower end on the plate 10 to be in electrical contact therewith and carriesan inner layer of insulating material 21, such as mica, against which the outer sur- 451 face of the shell 19 bears. The shell 19 is shorter in length" than is the shell 20 and is vertically positioned to haveits lower edge spaced above the plate 10 and its top edge below the top of the shell 20, the insulating material 21, however, extending the sulating material 21.

length of the shell 20. From the primary winding of the coil 16 extend the

leads

22 and 23 which are carried through the material 21 and the shell 20 to form the cable 24 therebeyond. v

The entire space within the

shells

19 and 20 and around the coil 16'and its core 13 is filledwith an insulating compound 25 so that the inner shell 19 is completely covered over and the compound carried around its top and bottom edges into contact with the insulating material 21. Theouter shell 20 is preferably corrugated by vertically extending ridges and depressions so that there are air spaces between the shell 20 and the in- Since the shell 20 is in contact with the base' l0, there is no difference in potential at any time therebetween, and the entiremachine may be picked up by grasping the shell 20 without danger of shock.

s a finishing piece to make the device more sightly, I provide an outer housing 26 which is essentially an inverted cup with a plurality of holes 27 through the side walls. The housing 26 is united to the base 10 by screws 28 passed up through the base 10 and screwthreadedly through an annular flange 29 around the lower edge ofthehousing26. The

cable 24 is carried out through an insulating bushing 30 fixed in a hole the housin 26.

Alternat ng current is passed through the primary winding of the coil 16 by means of the cable 24 to induce a current in the secondary winding of the coil 16 of comparatively high potential. The

shells

19 and 20 .being connected to the terminals of the secondary coil and serve as discharge plates,

the discharge therebetween producing ozone about the shell 19,, from which the ozone. may escape through the holes 27 to without the housing 26. The coil 16 being completely enclosed in-the compound 25 is removed from damage by the ozone. It is thus to be seen that a very simple ozone producing device is .to be had at a relatively low cost of production and that the device may be handled freely in moving it about from room to room without danger. 1

in the side of 2 i ,i,eo4,174

Iclaimz' V 1. In an ozone producing device, a base plate, a tongue extending upwardly nfrom the plate, a transformer core fixed to the 5 tongue, a transformer .coil carried on the core, a cylindrical outer shell surrounding the core, an inner shell shorter than the outer shell at both of its ends, and insulating material separating the two shells, said coil having secondary winding terminals in circuit with said shells.

2. In an ozone producing device, a base plate, -a tongue extending upwardly from the plate, a transformer core fixed to the tongue,

a transformer coil carried on the core, a cylindrical outer shell surrounding the core, an inner shell, and insulating material separating the two shells, said coil having secondary winding terminals 'in circuit with said shells, said outer shell being in electrical contact by its lower end with said plate, and said inner shell being shorter than the outer shell and having its top and bottom ends below and above the respective ends .25 thereof, one of said secondary winding ter- -minals being grounded to said plate, anddnsulating' compound completely filling the space within said shells and around said 'coil .and core to completely cover over said inner shell and said coil.

3. In an ozone producing device, a base plate having a' pair of integral tongues punched from the center thereof to project vertically upwards, a laminated transformer core fixed between the tongues, a transformer coil having primary and secondary windings carried on the core, and a pair of concentric discharge shells surrounding said core in electrical circuit with said secondary winding, the inner shell being shorter at both ends than the outer shell.

4. In an ozone producing device, a base' plate having a pair of integral tongues punched from the center thereof to project vertically upwards, a laminated transformer core fixed between the tongues, a transformer coil having primary and secondary windings carried on the core, and a pair of concentric discharge shells surrounding said core in electrical circuit with said secondary winding, the inner shell being shorter at both ends than the outer-shell, the outer of said shells being in contact with said base plate and the inner shell removed therefrom.

In testimony whereof I aflix my signature.

. DEAN W. DAVIS.