US1426340A - Cushion for telephone receivers - Google Patents

Description

0. W; AAGAARD. CUSHION FOR TELEPHONE RECEWERS APPLICATION man JAN. 19, 1922.

1 126,340", Patented Aug. 22, 1922.

0. W Hoaard.

or'ro w. aaoaaan, or balance, ILLINOIS.

CUSHION FOR TELEPHONE RECEZV'ER Specification of Letters latent.

Application flled January 19, 1922. Serial No. 530,379.

T0 at! whom it may concern:

Be it known that I, O'r'ro W. AAGAARD, a citizen of the United States, and a resident of Chicago, in the county 0f.C'0ol and State of Illinois. have invented a new and useful Improvement in Cushions for Telephone Receivers, of which the following is a full, clear, and exact description.

y invention relates to improvements in cushions for telephone receivers, and it consists in the combinations, constructions and arrangements herein described and claimed.

An object of my invention is to provide a device of the character described, which may be quickly attached or removed from the ordinary type of telephone receiver now in use.

A further object of my invention is to provide a device of the charaeterdescribed which enables the user to shut out all noises from the outside.

A further object of my invention is to provide a device of the character described of soft rubber having a bearing surface. which entirely encompasses the ear and which is not likely to abuse the ear as'in the case of the ordinary type of receivercap when usedconsistently.

Other objects and advantages will appear in the following specification. and the novel features of the invention will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawings, forming part of this application. in Which- Fig. 1 is a sectional view of my device applied to the ordinarvtype of telephone receiver.

Fig. 2 is a side elevation of the device removed from the receiver. and

Fig. 3 is a rear elevation of the device as shown in Fig. 2.

Tn carrying out my invention. 1' make use of the ordinary type of lclcphonc. receiver having a body portion 1 and a cap Thc cap 3 is provided with an opening 3 centrally located in a shallow depressed portion 4 of the cap.

The present embodiment of my invention consists in a substantially semi-spherical soft rubber shell 5 having a circuiar opening 6 in its lower wall.

Means for removably securing the shell 5 in operative position upon the rep 2 of Walls (il the hollow jacent the ear.

the telephone receiver l is provided in a relatively thin gripping portion '7 which is integral with the shell 5 and which is provided with a reenforcing ring 8 at its lower end. The gripping member 7 is substantially tubular in shape when out of engagement with the cap 2 and is soft and pliable, as shown l-Il Fig. 2.

The upper rim 9 of the shell 5 is provided with a hollow portion 10 extending the en tire circumference of the rim and relatively deep in the wall of the shell so that the side 11 and 12 of the shell 5 on each side 10 are extremely thin. This provides a pneumatic cushion so that when the rim 9 of the shell 5 is placed upon the head as the shell encompasses the ear and pressure is brought to bear thereon, it will tend to seal the rim 9 upon the head, but will not abuse the flesh. since the thin walls 11 and 12 will give and provide a cushionlike hearing of the rim 9 and the head.

Patented Aug. 22, 1922.

A plurality of openings 13. in this case I have shown two, are provided in the shell 5 adjacent the point 14 where the gripping member 7 joins the body of the shell 5.

From the foregoing description of the various parts of the device, the operation thereof may be readily understood. The device may be quickly attached or detached from the cap 2 of the telephone receiver 1 by merely stretching the gripping member 7 and passing it over the rounded portions 15 of the cap 2. The reenforced portion 8 acts as a means to pull the lower edges of the gripping member 7 closely together. as shown in Fig. 1. The telephone receiver may now be used in precisely the same mannor as before, except that in place of holding the relatively hard cap 2 in direct contact with the car which not only tires the ear but admits noises from the outside. the shell 5 is held so that it entirely encompasses the ear so that the soft pneumatic portion at the rim 9 lies in close contact With the head ad- The openings 13 admit air to the interior of the shell so that the sound waves travelling from the vibrating diaphragm of the receiver 1 are provided with a normal medium, i. e, the air, through which to travel to the ear. If these holes 13 are not provided, the air Within the shell 5 might be either at low or high pressure or might constantly vary. due to the pressure of the rim 9 against the head and the sound waves would not be properly transmitted from the diaphragm 17 to the ear.

I claim:

1. A device of thecha'racter described comprising a substantially semispherical soft rubber shell, said shell having a hollow portion in its side walls immediately adjacent the rim thereof and extending around the entire "circumference of said shell, said shell having an opening therethrough centrally located in the bottom wall thereof, and means integral with said shell for removably securing said shell to a telephone receiver 50 that its concave surface faces outwardly and the opening therethrough is adjacent the diaphragm-[of said receiver. v

2. A device of the character shell having an opening therethrough centrally located in the bottom wall thereof, and means integral with said shell for removabl y securing said shell to a telephone receiver describedj comprising a substantially semi-spherical' so that its concave surface faces outwardly and the opening therethrough is adjacent the diaphingm of said receiver, said means comprising a soft flexible rubber neck portion extending rearwardly from the convex surface of said shell and having a reenforcing band at its outer edge.

2. A device of the character described comprising a substantially semi-spherical soft rubber shell, said shell having a hollow portion in its side walls immediately adjacent the rim thereof and extending around the entire circumference of said shell, a plurality of vents in the side walk of said shell, said shell having an opening therethrough centrally located in the bottom wall thereof, and means integral with said shell for removahly securing said shell to a telephone receiver so that its concave surface faces outwardly and the opening therethrough is adjacent the diaphragm of said receiver, said means comprising a soft flexible rubber neck portion extending rearwardly from the convex surface of said shell and having a reenforcing hand at, its outer edge.

OT'IO W. AAGAARD.

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