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Publication numberUS2507375 A
Publication typeGrant
Publication dateMay 9, 1950
Filing dateJul 11, 1947
Priority dateJul 11, 1947
Publication numberUS 2507375 A, US 2507375A, US-A-2507375, US2507375 A, US2507375A
InventorsHartwell Sidney J, Kusch William J
Original AssigneeHartwell Sidney J, Kusch William J
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Crepe tissue protective pad for telephones
US 2507375 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

y 1950 s. J. HARTWELL ET AL 2,507,375


Application July 11, 1947, Serial No. 760,224

1 Claim. 1

Our invention refers to a telephone mouthpiece protecting pad. The primary object of the invention is to provide a simple and effective sanitary fiber protector disc adopted to be adhesively fitted to the lips of a transmitter mouthpiece.

The invention essentially comprises a centrally apertured fiber disc, having a coating of adhesive, non-drying substance which will affix the disc to the mouthpiece, whereby it can readily be removed for replacement without leaving any residue coating upon the lip.

The aperture or apertures of the disc are sealed by a crepe tissue sheet, whereby sound when closely directed in the mouthpiece will be transmitted clearly over the phone, but all extraneous room sounds or noises will be deflected or deadened due to the irregular crinkled crepe paper surfaces, which surfaces serve to deflect room sound waves directed towards the same at an angle. Hence, conversation may be carried on through the phone without interruptions by room noises. I

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the novel construction, combination and arrangement of parts, substantially as hereinafter described, and more particularly defined by the appended claim, it being understood that such changes in the precise embodiment of the herein disclosed invention may be made as come within the scope of the claim.

In the accompanying drawings is illustrated one complete example of the physical embodiment of the present invention constructed according to the best mode so far devised for the practical application of the principles thereof.

In the drawings:

Figure 1 is a sectional elevation of a telephone mouthpiece equipped with a sounding disc embodying the features of my invention.

Figure 2 is an enlarged front face view of the disc with parts broken away.

Figure 3 is a rear view of said disc.

Figure 4 is a magnified cross sectional view through a portion of the disc.

Figure 5 is a magnified form of the disc, showing a plurality of perforations.

Figure 6 is a magnified cross sectional view through the disc, the section being indicated by line 66 of Figure 5.

Referring by characters to the drawings, I indicates a fiber disc having a central enlarged aperture 1' formed therein.

Figure 3 of the drawings illustrates the inner face of the disc, which face is coated with an adhesive substance 2 of standard make. The adhesive substance is of such consistency that while it will positively adhere to a contacting surface when the disc carrying such surface is removed from the lips 4 of a telephone mouthpiece 4, the said lips will be free from adhesion particles, whereby the mouthpiece is maintained clean and sanitary.

The sound induction aperture l' of the disc has adhesively fitted about the inner surface of the disc, a porous crepe tissue sheet 3, whereby the aperture opening I is, in effect, closed.

However, owing to the crinkly upstanding surfaces or minute walls developed in the crepe paper. indirect sound striking the crinkled surface of the paper at an angle will be deadened, by deflection but sounds directed from the lips of an operator towards the opening I will be clearly transmitted through the telephone due to the porous nature of the sheet.

Hence, a party using the telephone or listening in will not be subjected to musical sound waves or noises in the room beyond the telephone mouth, which indirect sound waves under ordinary conditions frequently confuse conversation through the phone.

Referring to Figures 5 and 6 of the drawings, a sanitary disc is shown provided with a series of small apertures l" therein through which the sounds are transmitted, it being understood that otherwise the disc is constructed similar to that previously mentioned.

From the foregoing description, it is apparent that a sanitary disc is provided to protect operators from coming in contact with various microbes usually deposited upon the mouth of the phone which is used indiscriminately, and due to the cheapness and simplicity of this disc, they could be readily replaced from time to time to insure sanitation, it being also understood that the discs may contain Various advertising matter.

While I have stated that the disc I can be made of fiber, it is to be understood that the same can be made from paper or the like, and the term fiber is used to comprehend paper. If desired, the disc I can he made from thin metal, and in this instance the tissue sheets 3 can be renewed from time to time.

Other changes in details can be made without departing from the spirit or the scope of our invention, but what we claim as new is:

A sanitary protector and room sound deflector attachment for the mouthpiece of a telephone,

comprising a centrally apertured fiber disc, having its inner face coated with an adhesive material, the outer edge of the adhesive face of the disc being adapted to engage the rim of a telephone mouthpiece, a second disc of coarse crinkled crepe tissue having its edge adhesively engaging the inner face of the first mentioned disc for closing the aperture in said first mentioned disc, the irregular crinkled unbroken surface of the crepe tissue forming a series of mi,-

nute circular pockets, whereby voices directed into the telephone will penetrate the crepe tissue, while room sound Waves striking the surface of the circular pockets at various angles will be deflected so that they will not penetrate through the phone with the voice of the direct user there- SIDNEY J. HARTWELL.


REFERENCES CIT ED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 932,5l5 Hon? s- 1 9 1,289,569 Stearns Dec. 31, 1918 1,347,710 Potter July 27, 1920 21) 1,610,659 Craig Dec. 14, 1926

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US932545 *Apr 24, 1907Aug 31, 1909Jacob Maurice HaffTelephone antiseptic mouthpiece.
US1289569 *Feb 12, 1917Dec 31, 1918William F StearnsAttachment for telephones and the like.
US1347710 *Jul 28, 1919Jul 27, 1920Potter Ellis MSanitary telephone attachment
US1610659 *Apr 15, 1926Dec 14, 1926Craig Glodean CDisinfecting device for telephone mouthpieces
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2650269 *Feb 21, 1951Aug 25, 1953Harry WebbSanitary pad attachment for telephones
US3179749 *Mar 3, 1960Apr 20, 1965Snow Milton LTelephone instrument controlling device
US3976848 *Aug 21, 1975Aug 24, 1976Estes Roger QDisposable noise reducing hearing aid attachment
US4570038 *Feb 21, 1984Feb 11, 1986Frank TinelliSanitary cover for telephones and the like
US4751731 *Jan 14, 1987Jun 14, 1988Connor Desmond OTelephone handset disinfecting and/or deodorizing device
US4819265 *Jul 7, 1988Apr 4, 1989Colella James ADisposable cover for telephone
US5054063 *Dec 30, 1988Oct 1, 1991Lo Josephine NDisposable sanitary telephone cover
US5136640 *May 29, 1990Aug 4, 1992Kim Yun SReplaceable aromatic sticker for use in a telephone handset
US5448025 *Jul 19, 1994Sep 5, 1995Stark; Wayne T.Cover for stethoscope head
US6219419 *May 27, 1998Apr 17, 2001Asiatic Fiber CorporationSticker shielding against electromagnetic wave
US6560335Jan 30, 2001May 6, 2003Phone Guard, Inc.Sanitary phone cover
US7614477Feb 1, 2007Nov 10, 2009Steth-Glove, Inc.Stethoscope protective device
US9199013 *Jun 15, 2011Dec 1, 2015Simex Medizintechnik GmbhDevice for wound treatment and a wound covering bandage or dressing
US20060076184 *Oct 8, 2004Apr 13, 2006Robinson Jeffrey LAlleviating stethoscopically-caused contamination
US20090320979 *Mar 16, 2007Dec 31, 2009Donaldson Company, Inc.Hearing Aid Microphone Cover
US20130090616 *Jun 15, 2011Apr 11, 2013Norbert NeubauerDevice for wound treatment and a wound covering bandage or dressing
USD754631 *Jan 28, 2015Apr 26, 2016Charles Roberts, LLCPair of protective covers for headphones
DE9306160U1 *Apr 23, 1993Aug 26, 1993Knoeller AloisMulti-Telefonhygieneartikel
U.S. Classification379/421, 379/452
International ClassificationH04R1/12
Cooperative ClassificationH04R1/12
European ClassificationH04R1/12