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Publication numberUS3378864 A
Publication typeGrant
Publication dateApr 23, 1968
Filing dateFeb 18, 1966
Priority dateFeb 18, 1966
Publication numberUS 3378864 A, US 3378864A, US-A-3378864, US3378864 A, US3378864A
InventorsPhil M Cornes
Original AssigneePhil M. Cornes
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Atmospherically self-inflating buoyant device
US 3378864 A
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Description  (OCR text may contain errors)

April 23, 1968 M. CORNES 3,378,864

ATMOSPHERICALLY SELF-INFLATING BUOYANT DEVICE Filed Feb. 18., 1966 INVENT R.

United States Patent 3,378,864 ATMOSPHERICALLY SELF-INFLATING BUOYANT DEVICE Phil M. Comes, 2108 Chestnut, Wilmette, Ill.

Filed Feb. 18, 1966, Ser. No. 528,440 Claims. (Cl. 9--11) ABTRACT OF THE DISCLOSURE The principal object of my invention is in the provision of a device of this character of a body having a predetermined size and shape, constructed of resilient cellular material such that it may be deformed and deflated, with the material possessing an inherent memory regarding its original size, shape and density, and which is atmospherically responsive so as to be self-restoring and selfinflating, assuming its memorized size and shape when exposed to the atmosphere.

A further object of my invention is to provide in a device of this character a preformed body of polyurethane or other foam-like synthetic material encased in a flexible skin or envelope made from vinyl, plastic-coated nylon or a coating of any liquid-rubber or plastic composition, with the skin or envelope hermetically sealing the body therein, and providing the skin or envelope with a removable cap to permit deflating of the body and covering during its deformation and rescaling the deformed device against atmospheric pressure so that the same retains its deformed or deflated condition whereby it may be readily stored or placed in a convenient container.

Another and equally important object of my invention is the provision of a device of this character having an atmospherically self-inflating body comprising a preformed member of cellular synthetic material encased within a hermetically sealed covering, including a valvelike structure permitting the forced deflating and subsequent deformation of the body member and covering, as well as the atmospheric self-inflation and restoration of its predetermined form.

Other objects will appear hereinafter.

The invention consists in the novel combination and arrangement of parts to be hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings showing the preferred form of construction, and in which:

FIG. 1 is a perspective view of my improved atmospherically self-inflating buoyant device in its extended or memorized condition;

FIG. 2 is a detailed sectional view taken on line 2-2 of FIG. 1;

FIG. 3 is a view similar to FIG. 2 but showing the device in its deflated or collapsed condition;

FIG. 4 is a perspective view of my invention encased in a suitable container;

FIG. 5 is a perspective view of my device in the form of a self-inflating floatable life raft;

FIG. 6 is a detailed sectional view taken on line 6-6 of FIG. 5;

FIG. 7 is a view similar to FIG. 6, but showing the device in its deflated or collapsed condition; and

FIG. 8 is a fragmentary detailed sectional view showing the exhaust port as included in the device of FIG. 5.

In the most simplified application of my invention, I provide a pre-shaped rectangular buoyant device 10, as shown in FIG. 1. The preformed body member 11 is preferably constructed from, but not limited to, a polyurethane synthetic material, which material comprises a cellular low-density composition capable of retaining a predetermined shape having specific size and elastic qualities. The inherent properties of the synthetic .aeriferous material comprising the body member 11 possess a memory, in that, when it is uninhibited and exposed to normal atmospheric pressure, it will retain its predetermined shape and size, while, through its elastic qualities, it may be deformed and deflated, and if maintained in such condition against the atmospheric pressure, will retain its deformed condition; or, upon exposure to atmospheric pressure, its inherent memory will return it to its predetermined size and shape.

The preformed body member 11 is encased in an envelope 12 preferably constructed of vinyl or plasticcoated nylon whereby the polyurethane body material is hermetically sealed. The envelope 12 is stretched over the body 11 as taut as possible without deforming the same.

An alternate method of providing a skin for the body 11 is to apply a sprayed coating of liquid plastic rubber or rubberized composition; or the entire device 10 may be clipped in such solution to seal the outer cellular surfaces of the body.

As shown in FIG. 1, one end wall 13 of the device It) is provided with an orifice having a removable cap 14. This orifice provides an air passage through the envelope or skin 12 for the cellular body material 11, and may be constructed in the form shown in FIG. 8 as hereinafter described.

When the cap 14 is removed, exposing the air passage, the device 10, starting at the opposite end 15 thereof, may be forcibly compressed and rolled or folded in the directicn of the end wall 13. This procedure will exhaust the air from the cellular body material 11, deforming the same into a high density packed body, greatly reduced in size from its original condition.

When the cap 14 is replaced, sealing the orifice and preventing atmospheric re-entry into the envelope 12 and cellular body material 11, the components will retain their deflated and deformed condition as seen in FIG. 3.

In the event the device 10 is rolled, it may be conveniently stored in its deflated and deformed condition in a container 16 such as is shown in FIG. 4, which has a slide fastener closure 17.

When the device is to be utilized in its orginal predetermined shape, it is removed from the container 16 and the cap 14 is withdrawn from the orifice, permitting normal atmospheric pressure to be admitted into the envelope 12 and the cellular body material 11, to activate the inherent memory of such material 11, causing the selfinfiation and return of the body to its original predetermined size, shape and density, as shown in FIGS. 1 and 2. The cap 14 is then replaced over the orifice, again sealing the device 10, thus forming a buoyant semi-elastic body susceptible to a variety of uses, such as a life raft, a sleeping mattress, a cushion, a bumper or protective device, or the like.

In FIG. 5 I show a specific application of my invention. This adaptation embodies a preformed life raft 18 providing a center well 19 surrounded by a continuous wall 20 formed from any suitable cellular synthetic aeriferous material. The wall 20 is encased in an envelope 3 21 composed of a substance like that of the skin 12 hereinbefore described. The envelope 21 is wrapped about the four sides of one portion 22 of the continuous wall 20 and stretched therefrom and around the opposite portions of the continuous wall 20, providing therebetween a flooring 24 for the well 19.

In the top surface 25 of the wall 20 adjacent one end, I provide an air intake port 26 and an exhaust valve 27. The exhaust valve 27 may be of any suitable construction and, as such, comprises no part of the present invention except for its conventional relation to the complete device.

The air intake port 26 is of a specific construction in that I desire to expose as great an area of non-coated or unsealed cellular material 28 from which the body of the life raft 18 is formed; this for the reason that the greater the exposed area, the more rapid will be the inflation activation of the inherent memory of the body material when it is exposed to the atmospheric pressure surrounding it.

As shown in FIG. 8, a portion of the top surface 25 of the body material 28 is relieved to provide a recess 29 which receives a wire screen cup 30. The screen cup 30 is carried by an externally threaded collar 31 providing a peripheral flange 32 disposed between the envelope 21 and the cellular body material 28. A sealing gasket 33 is fixed to the outer surface of the envelope 21 about the exposed portion of the collar 31 to hermetically seal the connection therebetween. A removable cap 34 is threadable upon the collar 31 to seal or permit access to the interior of the envelope 21 and the cellular body material 28.

When it is desired to store the life raft 18, a suitable evacuation type pump or other means is connected to the valve 27, and the air is extracted from the cellular body material 28, causing the same to collapse and be deformed into the condition shown in FIG. 7. In its deflated condition as viewed in FIG. 7, the life raft 18 may be conveniently rolled or folded and placed into a storage container much like that illustrated in FIG. 4.

When it becomes necessary to utilize the life raft 18, all that is required to be done is to remove the cap 34 and under the atmospheric pressure surrounding the device, the inherent memory of the cellular material will be activated, and it will restore itself by self-inflation into its original shape and size. Upon replacing the cap 34 there is provided a water-tight buoyant life raft.

One of the outstanding safety features incorporated in my invention is that in the event that the envelope 21 develops a tear or puncture when the life raft is not in use, activation of the memory of the cellular material will be effected and the material will seek to restore itself to its original size and shape, thus giving visual indication while the life raft is not in use that it is in need for repair or restoration.

The extreme simplicity and ease of inflating and de flating my device makes it readily usable by men, women and children.

While I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without departing from the spirit of the invention. I therefore do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to protect by Letters Patent is:

1. An atmospherically Selfinflating life raft comprising:

(a) a one-piece preshaped buoyant aeriferous resilient memory member having a first memorized condition and a second deflated condition with the member having a center opening therein forming the sidewalls of said life raft,

(b) a continuous air and liquid impervious envelope hermetically sealing the outer exposed surfaces of said memory member, and extending across one side of the opening formed therein so as to provide a bottom wall therefor,

(c) a valve through which the atmosphere in said envelope and said aeriferous member is evacuated to permit the external atmospheric pressure to collapse said memory member into its second deflated condition within said envelope and into the plane of said bottom wall,

(d) and means for admitting atmosphere into said envelope and said aeriferous member when said memory member is in its second deflated condition to permit the same to resiliently assume its first memorized envelope filling condition.

2. An atmospherically self-inflating buoyant device as defined by claim 1 wherein said resilient memory member is composed from a continuous unobstructed synthetic cellular material.

3. An atmospherically self-inflating buoyant device as defined by claim 1 wherein the envelope is composed of a vinyl or plastic material covering and sealing the outer exposed surfaces of said resilient memory member.

4. An atmospherically self-inflating buoyant device as defined by claim 2 wherein said atmosphere admitting means includes an enlarged air passage, having communication with said envelope and the interior of said one-piece continuous unobstructed cellular member, and a removable cover therefor through which the device may be rapidly inflated.

5. An atmospherically self-inflating buoyant device as defined by claim 2, wherein said impervious envelope for sealing the outer exposed cells of said cellular material consists of a coating of liquid rubber or the like.

References Cited UNITED STATES PATENTS 2,803,023 8/1957 Rosenberg et al. 9-338 2,997,100 8/1961 Morris 5-348 3,017,642 1/1962 Rosenberg et al. 9-338 X 3,133,696 5/1964 Mirando 5-348 X 3,205,106 9/1965 Cross 264-45 X 3,271,797 9/1966 Boyce 5-348 MILTON BUCHLER, Primary Examiner.

T. MAJOR, Assistant Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2803023 *Jul 19, 1954Aug 20, 1957Holiday Line IncLife preserver cushion
US2997100 *Jun 9, 1958Aug 22, 1961Toyad CorpPneumatic foam structures
US3017642 *Nov 27, 1959Jan 23, 1962Holiday Line IncSelf-inflating cushion
US3133696 *Feb 19, 1962May 19, 1964Holiday Line IncPump
US3205106 *Jul 16, 1964Sep 7, 1965Goodyear Aerospace CorpMethod of increasing stiffness of an inflated structure
US3271797 *Dec 6, 1962Sep 13, 1966Ling Temco Vought IncImpact protective device
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3530031 *Sep 28, 1967Sep 22, 1970Cee Bee Mfg Co IncLaminated belt construction
US3735432 *Jan 6, 1971May 29, 1973B KretenCollapsible water mattress frame
US3798686 *Jun 9, 1971Mar 26, 1974Gaiser Enterprises IncSelf inflatable air mattress, and sleeping bag
US3872525 *Jan 10, 1972Mar 25, 1975Neil P AndersonInflatable foam pad
US3877092 *May 2, 1974Apr 15, 1975Gaiser Enterprises IncSelf inflatable air mattress, and sleeping bag with air pressure control
US3881439 *Jun 12, 1973May 6, 1975Svanholm Erik VBuoyancy body
US3928879 *Feb 11, 1975Dec 30, 1975Metzeler KautschukInflatable tube bodies
US3952694 *Nov 15, 1974Apr 27, 1976Mcdonald Ean LawrenceMarine signalling device
US4006503 *Aug 29, 1975Feb 8, 1977Advanced Sports CorporationAquatic mat
US4138753 *Nov 19, 1976Feb 13, 1979Advanced Sports CorporationAquatic mat
US4149919 *May 25, 1977Apr 17, 1979Lea James MMethod of making a self-inflating air mattress
US4261776 *Mar 8, 1979Apr 14, 1981Lea James MMethod of making self-inflating air mattress
US4637377 *Sep 20, 1985Jan 20, 1987Loop Floyd DPillow or support member for surgical use
US4688283 *Dec 23, 1985Aug 25, 1987Jacobson Theodore LMattress which conforms to body profile
US5196242 *May 29, 1991Mar 23, 1993Vicino Robert KSelf-inflating foam structure
US5240135 *Oct 16, 1990Aug 31, 1993Lepinoy IndustrieRigid wraparound shell defining a sealed inner space
US5487826 *Jan 14, 1994Jan 30, 1996International Envelope Company, Inc.Cardboard mailer packages
US7828146Mar 10, 2006Nov 9, 2010Sealed Air Corporation (Us)Inflatable containers
USRE31898 *May 17, 1984May 28, 1985Goodyear Aerospace CorporationInflatable-deflatable flexible structural component
EP0368107A1 *Oct 28, 1989May 16, 1990Ebiox System AgProtective device against water effects
Classifications
U.S. Classification441/41, 206/811, 383/3, 5/709, 92/92, 220/88.1, 92/47, 206/522
International ClassificationB63C9/08
Cooperative ClassificationY10S206/811, B63C9/081
European ClassificationB63C9/08A