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Publication numberUS1369630 A
Publication typeGrant
Publication dateFeb 22, 1921
Filing dateMar 15, 1920
Priority dateMar 15, 1920
Publication numberUS 1369630 A, US 1369630A, US-A-1369630, US1369630 A, US1369630A
InventorsDempster Harry V
Original AssigneeDempster Harry V
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sanitary mouthpiece-cover
US 1369630 A
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Description  (OCR text may contain errors)




1,369,630. Patented Feb. 22, 1921.




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Specification of Letters Patent.

Patented Feb. 22, 1921.

Application filed March 15, 1920. Serial No. 365,968.

To (ZZZ whom it may concern: V

Be it known that I, HARRY V. DEMrs'rER,

a citizen of the United States residing at .vlinneapoiis, in the county of Hennepin and State of Minnesota, have invented new. and useful Improvements in Sanitary Mouthpiece-Covers, of which the following is a specification.

This invention has reference to telephones, and has foran object to produce a sanitary attachment for the mouth piece of telephones. j

A further object is to produce a sanitary attachment for the mouth piece of telephones which shall be of a simple construction, cheaply manufactured, easily attached, and which will positively prevent the user of the telephone from infection by disease germs.

The foregoing objects, and others which will appear as the nature of the invention is better understood, may be accomplished by a construction, combination and operative arrangement of parts, such as is disclosed by the drawings.

In the drawings Figure 1 is a perspective view of a telephone illustrating one form of my improvement arranged on the mouth piece thereof.

Fig. 2 is a sectional view approximately on the line 22 of Fig. 3.

Fig. 3 is a front elevation of the improvement, parts in longitudinal section.

Fig. 4; is a sectional view approximately on the line 4-4: of Fig. 3.

Fig. 5 is a face view of a modification.

Fig. 6 is an edge view thereof.

Fig. 7 is a side elevation, with parts in section of a still further modification.

In Fig. 1 of the drawings 1 have illustrated an ordinary construction of telephones, the mouth piece thereof being indicated by the numeral 1.

In the exemplification of my improvement illustrated in Figs. 1 to 4 I make use of a split ring that provides a clamp 2. This clamp is designed to be arranged around the mouth piece 1, and the confronting ends of the ring at the split portion thereof have straight extensions which are connected together by a binding element 3. The binding element is preferably in the nature of a screw having a winged head. The clamp 2, at the center thereof, and in a line with the straight extensions at its split ends, has an angle arm 4 provided at its outer end with a right angularly disposed ring member 5. The diameter of the ring 5 is less than the split ring that constitutes the clamp 2, so that the ring 5 is received on the reduced end of the mouth piece 1, at the portion thereof which is connected to the telephone.

The split ring that constitutes the clamp 2, has at its upper end an arched plate 6. The plate 6, at its outer end has spaced elements that constitute jaws, indicated by the numeral 7 and these jaws are designed to clamp therebetween one end of a gauze sheet 8. The sheet 8 iswound around a shaft 9 that is received in a tubular casing 10. The shaft 9 is influenced by a spring 11, the purpose of which will presently be described. The shaft 9 has a milled head 12 which is designed to be grasped to hold the shaft from turning by the spring when the casing is swung away from contacting engagement with the element 4, and then released to permit of a proper amount of gauze being drawn off of the roller when the used portion thereof is to be detached and the new portion arranged between the jaws. The casing 10 has on its lower face a depending portion providing a pocket or receptacle 13 for an absorbent strip 14=-that is impregnated with some liquid germicide, and the element 14 is influenced by an arched spring 15 in the pocket or receptacle 13. The outer surface of the pocket 13 may be employed as a finger grip for the operator, and the germicide delivered to one portion of the gauze sheet 8 will impregnate the whole sheet. The germicide may be readily inserted in the pocket as the end of the easing in which the spring 11 is arranged is removable. The spring 11 will influence the casing so that the latter may be brought against the arm 4 which rests under the mouth piece 1 of the telephone, and when the germicide on the exposed portion of the sheet 1 becomes weakened from such exposure, this portion of the sheet may be severed, and the outer end of the sheet clamped between the jaws 7 of the member 6. It will thus be noted that the exposed portion of the gauze 8 is arranged directly over the mouth piece of the telephone and held thereagainst by the tension of the spring in the casing, while used gauze may be separated and another portion withdrawn from the roll and arranged in the clam 7 over the mouth of the telephone, the casing then being returned to initial position in frictional contact with the element 4,,

In Fig. 5 I have illustrated a perforated disk 16 that has on its upper edge, an arched I flange or shield 17 that may be arranged directly over the mouth of the telephone, andagainst this plate 16 the germicide impregnated sheet 8 mayrest.

In Fig. 7 a split ring. constitutes a clamp 18, similar to the clamp 2, On the sides of the, clamp 18, there are arms 19 that have at their inner ends an angularly arranged ring 20 which is disposed parallel to the clamp 18-. The arms 19 extend a suitable distance outward from the clamp 18, and to the said outer ends of these arms are casings 21. These casings are substantially similar to the casing 10", each of said casings 21 having a longitudinal shaft 22' and a guide roll Around the shaft is trained an endless gauze sheet 24 the said sheet being guided by the rolls 23. In; the lower casing 21 there is a receptacleor pocket 25 for a germicide and in the pocket is a compressible absorbent strip 26 that is influenced by an arched spring 27 to deliver the germicide to the gauze 2 1 on the shaft 22 of the lower casing 21-. The gauze, as stated, comprises an endless sheet and maybe readily turned either byhand or by the use of a suitable implement around the shafts 22 of the spaced casings 21, so that surfaces thereof to which the germicide has been last applied may be egrposed or brought next to the mouth piece. of the telephone.

It is thought that the foregoing description, \v en: taken in connection with the drawingswillfully set forth the simplicity of the construction and the advantages thereof to those skilled in the art to which such inventions relate.

Having thus described the invention, what I claim is 1. The combination with the mouth piece oi a telephone, of a protector comprising a gauze sheet having one of its ends supported on the mouth piece of the telephone, and spring influenced means connected to the opposite end of the sheet and designed to contact with the mouth piece of the telephone to exert pressure onthe sheet to hold the same tau-t against the mouth piece.

2. The combination with the mouth piece of a telephone, of a protector comprising a gauze sheet having one of its ends supported on the mouth piece of the telephone, and spring influenced means connected to the opposite end of'the sheet and designed to con tact with the mouth piece of the telephone to exert a pressure on the sheet to hold the same taut against the mouth piece, and. means for delivering a disinfecting agent to the sheet.

3. The combination with the mouth piece of a telephone, of a clamp secured thereon, jaws connected to said clamp, 21 gauze sheet secured between said jaws, a casing receiving the opposite end of the sheet, a shaft in the casing 011 which the said end of thesheet is wound, spring means for influencing the shaft in one direction, a germicide pocket in the casing, and a spring influenced-compressible strip in the pocket contacting with the portion of the sheet disposed adjacent thereto.

In testimony whereof I my signature.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4751731 *Jan 14, 1987Jun 14, 1988Connor Desmond OTelephone handset disinfecting and/or deodorizing device
U.S. Classification379/439
International ClassificationH04R1/12
Cooperative ClassificationH04R1/12
European ClassificationH04R1/12