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Publication numberUS1382831 A
Publication typeGrant
Publication dateJun 28, 1921
Filing dateApr 11, 1921
Priority dateApr 11, 1921
Publication numberUS 1382831 A, US 1382831A, US-A-1382831, US1382831 A, US1382831A
InventorsFrank C Hilker
Original AssigneeFrank C Hilker
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Pneumatic cushion
US 1382831 A
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Description  (OCR text may contain errors)

F. C. HILKER.

PNEUMATIC CUSHION.

APPLICATION FILED APR. 11. 1921.

Patented June 28, 1921.

STATEE PNEUMATIC CUSHION.

measles.

Specification oi Iiettcrs Patent.

Patented June 2& 192i.

Application filed. April 11, 1921.- Serial No. 460,567.

To all whom it may concern:

Be it known that I, FRANK C. HILKER, a citizen of the United States of America, and resident of Fort Wayne, in the county of Allen and State of Indiana, haveinvented certain new and useful improvements in Pneumatic Cushions. of which the following is a specification.

ihis invention relates to improvements in. pneumatic pillows and cushions and the object thereof is to construct a pneumatic sack in the form of a pillow or cushion so that when it is inflated it will tend to retain the flatness that is usual in the ordinary stuffed pillow case or cushion. inflated sacks commonly tend to loecome spherical or round when the pressure is sufficient to afiord the required support, and the present construction is such as to permit inflation of the saclr with air pressure sut'ficiently high as to afford the required support without distort- This object is accomplished by the construction illustrated in the accompanying a l a) a drawings in which igure i i a perspective view of the in- 'on inflated;

2 is vertical cross section of the 6 ig. 3 is plan view of the invention in a modfied form, a portion being shown broken away; and

r 1g. 41 is a similar view of the invention showing another modification thereof.

s characters of reference hereinafter app ringpertain to the parts described T designated by corresponding characters firmness than the outer lamina before the two are united and subjected to the final curing process, so that the inner lamina resists more than the outer lamina the tendency to bulge when the sack is inflated. As shown in F 1g. 2, the area of the inner lamina is restricted to the middle, portion of the sheet, and therefore the corresponding areas of the sack tend to remain flatter than the marginal portions thereof.

In the modified form shown in Fig. 3 the sheets 7 and 8 forming the sack are each provided with a series of interior strips 9 formed in the same manner as the inner lamina in the first instance; and in the modification shown in Fig. 4., the sheets 10 and 11, forming the sack, are each provided with a series of interior laminae 12 of a murder character but differing in shape and arrangement. in use, the sack is inflated with air through its" valve to a pressure suited to the supuort required of it, and may be inserted in a pillow-case or cushion cover {not shown) as s the usual custom. Aside from its useiulness as pillow and cushion, the invenmen may also serve in case of accident as a buoy when heating.

What ll claim is:

1.. A pneumatic suck for a pillow or cuslr ion formed of two sheets of rubber the ed es of which are united, and each sheet loci no" composed of lamina of different degrees oi stiffness, the lamina of greater stitinesshemg of less area than that of the other lamina.

in a device of the class described, a sack having a Valve and adapted to be inflated, the walls oi the each being formed of sheets each composed of laminm of different degrees of stiffness, the lamina of greater stid" ness being of less area than that oi the other and adapted to resist the tendency of the sack to bulge when inflated.

in testimony whereoi afi ir my signature, in presence of two witnesses.

FRANK C.

W i tnesses Marnnna lVQiET'iLER, Warren G. Scene.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4096850 *Feb 24, 1976Jun 27, 1978John Mackay HadcroftHeat absorber for a solar heating system
US4330893 *Oct 22, 1979May 25, 1982Ichinosuke MatsuiWater bed
US4360736 *Apr 15, 1980Nov 23, 1982Weissenfluh John ARadiation shield
US4644597 *Apr 14, 1985Feb 24, 1987Dynatech, Inc.Air mattress with pressure relief valve
US4788729 *Jan 9, 1987Dec 6, 1988Walker Robert AAir mattress with audible pressure relief valve
US4912861 *Apr 11, 1988Apr 3, 1990Huang Ing ChungRemovable pressure-adjustable shock-absorbing cushion device with an inflation pump for sports goods
US5138721 *May 1, 1989Aug 18, 1992Donald SpectorPneumatic bolster
US5173979 *Apr 20, 1992Dec 29, 1992Nennhaus H PeterInflatable leg and foot supporting cushion with removable padding
US5311706 *Jul 19, 1991May 17, 1994Tracor Aerospace, Inc.Inflatable truss frame
US5669161 *Nov 15, 1996Sep 23, 1997Huang; Ing-JingShock-absorbing cushion
US5830553 *Jun 7, 1995Nov 3, 1998Huang; Ing ChungShock-absorbing cushion
US5864903 *Jan 27, 1998Feb 2, 1999Newman; HopePillow with storage pocket containing a condom
US6026593 *Dec 5, 1997Feb 22, 2000New Balance Athletic Shoe, Inc.Shoe sole cushion
US6042185 *Oct 13, 1998Mar 28, 2000Brex, Inc.Method and means for facilitating rest for a person in a sitting position
US6128837 *Jun 16, 1997Oct 10, 2000Huang; Ing JingThree dimensional shoe vamp air cushion
US6161240 *Jul 15, 1997Dec 19, 2000Huang; Ing-JingShock-absorbing cushion
US6253466May 24, 1999Jul 3, 2001New Balance Athletic Shoe, Inc.Shoe sloe cushion
US6428865Jan 14, 1993Aug 6, 2002Ing-Chung HuangShock-absorbing cushion with a multi-holed and/or grooved surface
US6460197 *Aug 16, 2001Oct 8, 2002Ing-Chung HuangRemovable, pressure-adjustable, shock-absorbing cushion device with an inflation pump for sports goods
US7051389May 23, 2003May 30, 2006Tempur World, LlcComfort pillow
US7082633Feb 4, 2005Aug 1, 2006Tempur World, LlcPillow
US7141713Jul 9, 2003Nov 28, 2006Agrama Hani MMethod for reducing pressure damage to skin of a person, and corresponding skin protective devices
US7415742May 30, 2006Aug 26, 2008Tempur World, LlcComfort pillow
US7469437Jun 24, 2005Dec 30, 2008Tempur-Pedic Management, Inc.Reticulated material body support and method
US7530127Apr 20, 2006May 12, 2009Dan-Foam ApsPillow and method of manufacturing a pillow
US7735169Aug 26, 2008Jun 15, 2010Tempur-Pedic Management, Inc.Comfort pillow
US8418297Dec 30, 2008Apr 16, 2013Tempur-Pedic Management, LlcReticulated material body support and method
US8656537Apr 20, 2006Feb 25, 2014Dan Foam ApsMulti-component pillow and method of manufacturing and assembling same
US20130312194 *May 23, 2013Nov 28, 2013Kirk SullivanPillow supplement and related methods
Classifications
U.S. Classification428/102, 5/644, D06/604, 383/3, 5/655.3
International ClassificationA47C27/08
Cooperative ClassificationA47C27/087, A47C27/081
European ClassificationA47C27/08A, A47C27/08F