US2512872A - Elastic ventilated tubular envelope - Google Patents

Description

June 27, 1950 s. PENKSA ELASTIC VENTILATED TUBULAR ENVELOPE Filed Dec. 4, 1947 INVENTOR.

Stanley Pezzirsar M 7. 1%

Patented June 27, 1950 UNITED STATES PATENT OFFICE ELASTIC VENTILATED TUBULAR ENVELOPE Stanley Penksa, Yonkers, N. Y.

Application December 4, 1947, Serial No. 789,658

2 Claims.

This invention relates to a covering or shield for organs of the human body to protect the organ over which the device is placed from contamination and soiling. The purpose of the invention is solely for sanitary purposes and for the prevention of contagious diseases.

When an organ of the human body is inserted into a cavity in another body, there is always danger of contagion unless the entire organ has a covering there-over which covering cannot be dislocated or damaged and cannot slip off the organ while it is within the cavity in another body.

As an example, physicians in examining cavities in the human body sometimes insert a finger having an elongated cot thereover into the cavity for inspection purposes, resulting in secretions from the body passing onto the hand of the physician at a point which is not covered by the cot covering the finger. In order to eliminate this source of contamination some physicians use a rubber sack, much larger than thefinger, which is supposed to fit over the hand also of the physician, but this is clumsy and interferes with the proper inspection of the cavity under survey.

Therefore, rubber gloves or cots which cover not only the front portion of a finger but which extend over the entire length of the finger have been used. Such cots or gloves should fit tightly and they should be of very thin material in order to interfere as little as possible with the physicians work. When inserting a finger into a tight fitting longitudinal sheath or cot of thin resilient material, or when putting on a tight rubber glove of thin material, usually the sheathing is pushed slowly over the finger. Thereby the air within the glove finger portions or within the cot is compressed toward its closed end portion, so that there will occur an air cushion at the finger tips. This is highly objectionable because it impairs to a large extent the physicians sense of touch at his finger tips, or an attempt of squeezing out the air results in a piercing or damaging of the cot at its front end, thus exposing the inserted finger to the danger of contamination and soiling.

It is, therefore, an object of this invention to provide a rubber cot having means for preventing an internal pressure and accumulation of air within the closed end portion of the cot after a finger has been inserted therein.

Another object of the present invention is the provision of an elastic ventilated tubular envelope whose bottom portion is provided with an outwardly bulging extension, and which is provided adjacent said extension with self-closingperforations adapted to open up only temporarily under the influence of an excessive interior pressure within the sack and to close automatically upon disappearance of the interior air pressure, so that a physician" may squeeze the air out of the finger cot or the finger portions of a glove without damaging the same.

A further object ofthe present invention is the provision of an elastic ventilated tubular envelope which is simple-in construction and inexpensive to manufacture, sothat it can be sold at practically the same price as similar hitherto manufactured articles.

With the foregoing and other objects in view. which will appear as the description proceeds,

the invention consists of certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claims, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

In the accompanying drawings the preferred forms of the invention have been shown.

In said drawings:

Figure 1 is a side view of a fraction of a finger cot or glove finger constructed in accordance with the present invention;

Fig. 2 is a bottom plan view of the same;

Fig. 3 is a sectional view on the line 3-3 of Fig. 2;

Fig. 4 is an enlarged fractional view showing a portion of the cot open; and

Fig. 5 is anenlarged fractional view showing a portion of the cot closed.

Similar reference characters refer to similar parts throughout the several views.

In the drawing the numeral I denotes a fraction of an elastic ventilated tubular envelope of the character described, whose closed end is provided with an outwardly bulging extension 2 adapted for yielding to stresses when the cot l is tightly worn on a finger and also adapted for receiving a certain amount of air, thus constituting a pressure dome in which air may accumulate before it is released. Adjacent the extension 2 there are tapered perforations 4 whose outer diameter is zero as long as no stretching of the bottom resulting from excessive interior pressure occurs.

The combination of the extension 2 with the perforations 4 alone might afford a proper ventilation and self-closing non-return valve action.'

However, I prefer to provide the perforations 4 also with preferably cup-shaped resilient thin flaps 3 whose major edge portions are secured to the outer side of the cot I, while a small section v 5 of each flap 3 rests loosely upon the cot l Normally the edge portions of the flaps 3 surround entirely the perforations 4 and constitute additional closure means, as may be seen in Fig. 5 and at the left hand side of the Figs. 1 and 3. If an right hand side of Figs. 1 and 3) so that the air can escape.

The flaps 3 can be attached to the cot l by pasting, vulcanizing or the like, or they maybe made as a unit therewith.

Since certain changes may be made in the above 1 article and different embodiments of the invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying :drawing shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the invention which as a matter-of 'language'might be said to all'therebetween.

Having thus fully described my said invention, what I claim as new and desire to -secure by Letters Patentis:

1. In a rubber article of the character described having the form of a resilient sack Whose bottom portion is provided with an outwardly bulging extension, inwardly diverging perforations adjacent said extension whose outer diameter is zero as long as no stretching of the bottom resulting from excessive interior pressure occurs, the portions surrounding said perforations being provided with self closing valve means. I

2. A device of the character described comprising an elastic tubular envelope having the form of a resilient sack whose bottom portion is provided with an outwardly bulging extension, adjacent said extension the envelope being provided withconical perforations whose diameter at the outer side of the sack is substantially zero as long as no stretching of the bottom resulting from excessive interior pressure occurs, the portions surrounding said perforations being provided with resilient flaps Whose major edge portions are secured to the outer side of the sack while a small edge sectionof each flap rests loosely upon a portion of the sack, the edge portions of said flaps surrounding said perforations, and said flaps being adapted for normally closing said perforations.

STANLEY PENKSA.

-REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 211,350 Germany June 28, 1909

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