New! View global litigation for patent families

US3064279A - Pillow construction - Google Patents

Pillow construction Download PDF

Info

Publication number
US3064279A
US3064279A US5869460A US3064279A US 3064279 A US3064279 A US 3064279A US 5869460 A US5869460 A US 5869460A US 3064279 A US3064279 A US 3064279A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
sheets
sheet
bottom
top
pillow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Finkle Bernard
Original Assignee
Finkle Bernard
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47GHOUSEHOLD OR TABLE EQUIPMENT
    • A47G9/00Bed-covers; Counterpanes; Travelling rugs; Sleeping rugs; Sleeping bags; Pillows
    • A47G9/10Pillows
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C27/00Stuffed or fluid mattresses specially adapted for chairs, beds or sofas
    • A47C27/14Stuffed or fluid mattresses specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/142Stuffed or fluid mattresses specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities
    • A47C27/144Stuffed or fluid mattresses specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities inside the mattress
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S297/00Chairs and seats
    • Y10S297/01Foam

Description

Nov. 20, 1962 B. FINKLE PILLOW CONSTRUCTION 2 Sheets-Sheet 1 Filed Sept. 27, 1960 INVENTOR. BERNARD F/NKLE Nov. 20, 1962 I FlNKLE PILLOW CONSTRUCTION 2 Sheets-Sheet 2 Filed Sept. 27. 1960 Fig a m lk 25:7

INVENTOR. BE/ZgVARD F/NK L E WM... fl- M United States PatentOflFice 3,654,279 Fatented Nov. 20, 1962 3,064,279 PILLOW CONTRUCTION Bernard Finkle, 2115 Oxford Ave., outh Plainfield, NJ. Filed Sept. 27, 1969, fier. No. 58,694 4 Claims. (Cl. -337) My invention relates generally to foam type or expanded plastic pillows and particularly, pillows having a resistance to complete crushing. This application is copending with applicants U.S. patent application Ser. No. 58,683, filed in the United States Patent Ofi'ice on September 27, 1960 for a Method for Making Compressible Expanded Plastic Pillows.

It is among the objects of my invention to provide a 'pillow construction in which relatively thick foamed plastic resilient sheets are united together.

It is a further object of my invention to provide a foamed plastic pillow which is resistant to complete crushing.

It is yet another object of my invention to provide a light weight foamed plastic pillow with marginally joined sheets of plastic with upstanding fingers on the sheets engaging an intervening sheet.

These objects and advantages as well as other objects and advantages may be achieved by the pillow illustrated in the drawings in which:

FIGURE 1 is a view in perspective of a top sheet for a pillow with the general configuration shown in phantom;

FIGURE 2 is a view in perspective of a bottom sheet for a pillow with the general configuration shown in phantom;

FIGURE 3 is a view in perspective of superposed top, center and bottom sheets for a pillow;

FIGURE 4 is a partially sectioned side view of a pillow composed of the three sheets shown in FIGURE 3 after the top and bottom sheets are united along their marginal edges;

FIGURE 5 is a view in perspective of such a pillow;

FIGURE 6 is a view in perspective of a press for heatsealing the marginal edges of the top and bottom sheets of a pillow;

FIGURE 7 is a partial vertical sectional view of the sealing die showing the heater construction;

' FIGURE 8is a perspective view of the sheets arranged between the heat-sealing dies prior to scaling;

FIGURE 9 is a side view of the heat-sealing dies with the sheets compressed between them for sealing; and

FIGURE 10 is an enlarged view of a sheet of expanded plastic showing the undercut edges.

Feather down pillows in common use soon lose their resiliency or tone and become flat, flabby, unresilient slabs which are uncomfortable to sleep upon. The advent of foam rubber suggested the use of foam rubber biscuits as pillow stufifers. The material however was too readily compressible and hot to sleep on. The advent of flexible foamed plastic material such as polyurethane foam suggested the use of a biscuit of that material as a pillow stulfer. It was found that if two sheets of flexible foamed polyurethane were formed with opposing eggcarton configuration faces, and they were marginally united with a sheet of similar material between them, a pillow of just the right texture, or compressibility was formed: light, compressible, yet resilient, and resistant to complete flattening under the weight of the head of the sleeper. The pillow was not hot. The difficulty of sealing the sheets at their marginal edges was discovered to be overcome by undercutting the edges of the sheets, so that a thin, neat bead or edge was formed on the finished pillow.

In referring to the egg-carton configuration, reference is had to the type of carton in which individual depressions are formed between upstanding fingers for the nesting of the lower half of an egg, and a like configuration on a cover completes the enclosure, with fingers in between to laterally hold the eggs.

Referring now to the drawings in detail, a heat-sealing press 11 is utilized as shown in FIGURE 6. There is a top die 12 and a bottom die 13. The top and bottom dies 12, 13 have a large central area 14 formed of material having a low coeflicient of thermal conduction. Wood or wood compositions may be used. The marginal edges of these top and bottom dies are provided with a metal channel 15 carrying a heating unit 26 of any of numerous well known designs. The dies 12, 13 may be brought together as shown in FIGURE 9, since the upper die 12 may be lowered to meet the bottom die 13; foam plastic sheets will be compressed between the dies 12, 13 with the marginal edges of the sheets engaged between the heated metal borders 15, 15. The edges of the sheets will be melted and fused together forming a bead. It will be noted that heat and pressure are applied to the marginal edges of top and bottom sheets, only at the points where they are undercut so that very thin edgeportions of the sheets are united.

The material preferred for the pillow is the expanded flexible plastic polyurethane foam. This foam is utilized in sheets 16 approximately three inches thick. In the interest of lightness of weight and economy of material, instead of plain flat sheets, sheets may be used which have an egg-carton configuration. The egg-carton configuration is characterized by a plurality of upstanding fingers 17 separated from each other by generally equal corresponding indentations 18, so that the fingers 17 of opposed sheets 16 will nest in the indentations of the other sheet 16. The base portion 19 of the sheet from which the fingers 17 rise should be undercut to provide a thin edge 20. This is necessary because sheets of polyurethane foam in thickness of over one inch are nearly impossible to seal together satisfactorily. Since the base portion 19 of the sheets 16 must the thicker than one inch in order that the pillow have the proper body, the edge-sealing problem is overcome by reducing thickness by undercutting marginal portions of the edges 20 as will appear in FIGURES l, 2, 3, and 8. The hot wire method of cutting or carving foamed plastic sheets is well known. A generally semicircular edge 20 or channel is cut from each of the sheets by a suitably curved Nichrome wire electrically heated. The edges 20 of reduced thickness are easily united by heat and pressure. The foam biscuits to be united may be approximately 19" x 26" and each 2%" thick. The semicircular cut out edge 20 or channel should be approximately 2%" deep so that it will leave /z" as the base portion 19 of each sheet. Thus the marginal edges 20 to be bonded together will, together, be no more than 1 thick, which is within the realm of bonding with ease; a thin bead or edge is formed which is lacking in rigidity.

If the sheets 16 were united with their fingers 17 unopposed, compression would result in an interlace of fingers 17, which would enter the adjacent corresponding depressions 18. The result would be that the head of the user would cause great flattening of the pillow. This is avoided by interposing a central sheet 21 of material between the top and bottom sheets before they are sealed together. It is preferred, although not absolutely necessary, that this sheet 21 shall also be of the same material as the top and bottom sheets 16. The interposition of this central sheet 21 prevents the finger interlace previously referred to and prevents the flattening of the pillow by the weight of the head of the user. It is preferred that this sheet 21 have an area less than the area of the top and bottom sheets 16 so that it will not interfere with the bonding or sealing of the edges of the top and bottom sheets 16. Thus such a sheet 21 may be 15" x 22" i.e. disposed inwardly 2" on all four sides from the edges of the top and bottom sheets 16.

I have referred to heat sealing of the marginal edges of the top and bottom sheets 16. It is of course possible to apply this heat in numerous manners such as high frequency heat, gas flame, and it is even possible to bond the sheets together with glues or cements and then to apply pressure without heat.

The top and bottom sheets 16 are arranged over each other with the plain central sheet 20 in between them. They are placed in the press and compressed between the dies 12, 13. The edges of the dies are hot and are arranged and dimensioned to engage between them the marginal /2" thick (two together, 1") edges of the top and bottom sheets. The heat tends to soften and to melt the foamed plastic, collapse the cellular structure, and cause the sheets to fuse or bond together in a homogeneous head; when this has occurred, the heat is lowered, and after a dwell time suflicient to allow the fused, bonded margins to set, the pressure is removed and a pillow 22 appears in the shape shown in FIGURE 5 with an internal configuration in accordance with the cross section shown in FIGURE 4.

The bonding temperature for the edges can vary widely, but it has been found that raising the border 15 temperature to 360-420 F. will accomplish a suitable bond, without scorching, in a short time. The exact time can easily be experimentally determined after a few trials. The exact time is dependent upon numerous factors such as material, size of heating coil, size of metal housing, current characteristics, thickness of metal housing of heating coil, dimensions of metal heating margins on the dies, etc.

The foregoing specification is intended merely to be illustrative of the invention for many changes may be made in the selection, construction and arrangement of the parts without departing from the spirit of the invention.

What is claimed: I

1. A pillow construction comprising'a pair of outer flexible expanded plastic sheets having undercut edges of lesser thickness than the central portion of the sheets, a center sheet of lesser cross-sectional area than the pair of outer sheets and interposed between them, the pair of outer sheets marginally united together, a plurality of fingers on the opposed inner faces of the pair of sheets engaged with the center sheet.

2. A pillow construction comprising a top outer sheet, a plurality of fingers extending outwardly from the top Sheet and defining between each other spaces to receive corresponding fingers on another opposed sheet, a bottom outer sheet, a plurality of fingers extending outwardly from the bottom sheet and defining between each other spaces to receive corresponding fingers on another opposed sheet, the top and bottom sheets arranged with their respective fingers in general opposition, a center inner sheet disposed between the top and bottom sheets and engaged on both sides of a plurality of the finger-s on the top and bottom outer sheets, the top and bottom sheets having marginal edges of lesser thickness than the central portion of the sheets, the thinner marginal edges united together.

3. A pillow construction comprising a top outer sheet,

a plurality of fingers extending outwardly from the top sheet and defining between each other spaces to receive corresponding fingers on another opposed sheet, a bottom outer sheet, a plurality of fingers extending outwardly from the bottom sheet and defining between each other spaces to receive corresponding fingers on another opposed sheet, the topand bottom sheets arranged with their respective fingers in general opposition, a center inner sheet disposed between .the top and bottom sheets and engaged on both sides by a plurality of the fingers on the top and bottom outer sheets, the top and bottom sheets having marginal edges of lesser thickness than the central portion of the sheets, the thinner marginal edges united together, the top and bottom sheets being formed of a flexible expanded plastic material.

4. A pillow construction comprising a top outer sheet, a plurality of fingers extending outwardly from the top sheet and defining between each' other spaces to receive corresponding fingers on another opposed sheet, a bottom outer sheet, a plurality of fingers extending outwardly from the bottom sheet and defining between each other spaces to receive corresponding fingers on another opposed sheet, the top and bottom sheets arranged with their re spective fingers in general opposition, a center inner sheet disposed between the top and bottom sheets and engaged on both sides by a plurality of the fingers on the top and bottom outer sheets, the top and bottom sheets having marginal edges of lesser thickness than the central portion of the sheets, the thinner marginal edges united together, the top and bottom sheets being formed of flexible polyurethane foam.

US3064279A 1960-09-27 1960-09-27 Pillow construction Expired - Lifetime US3064279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US3064279A US3064279A (en) 1960-09-27 1960-09-27 Pillow construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3064279A US3064279A (en) 1960-09-27 1960-09-27 Pillow construction

Publications (1)

Publication Number Publication Date
US3064279A true US3064279A (en) 1962-11-20

Family

ID=22018350

Family Applications (1)

Application Number Title Priority Date Filing Date
US3064279A Expired - Lifetime US3064279A (en) 1960-09-27 1960-09-27 Pillow construction

Country Status (1)

Country Link
US (1) US3064279A (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323152A (en) * 1965-11-01 1967-06-06 Milbern Company Body supports
US3462776A (en) * 1967-07-06 1969-08-26 Abbott Lab Cored pillow and method of making same
US3507727A (en) * 1966-02-01 1970-04-21 Mobay Chemical Corp Method of making and seaming covered foam cushioning
US4021871A (en) * 1975-10-20 1977-05-10 Harold Wortman Process and structure for pillow making
US4110857A (en) * 1976-06-21 1978-09-05 Conwed Corporation Resilient foam cushion structure
US4432110A (en) * 1980-07-11 1984-02-21 Harrison & Jones (Brookside) Limited Cushioning structure
US4731891A (en) * 1985-06-28 1988-03-22 Texas Recreation Corporation Apparatus and method for manufacturing a waterproof pillow
WO1991007122A1 (en) * 1989-11-17 1991-05-30 National Research Development Corporation Improvements in or relating to pillows
US5256236A (en) * 1989-07-03 1993-10-26 Baker, Knapp & Tubbs, Inc. Method for making a cushion
US5452488A (en) * 1993-03-01 1995-09-26 Perma Foam Limited Contourable pocket foam mattress and method of manufacture
US5494049A (en) * 1992-05-05 1996-02-27 Torso (Australia) Pty Ltd. Physical therapy bolster
US5588168A (en) * 1996-01-23 1996-12-31 Byrne; Thomas Contoured symmetrical differential-elasticity neck pillow
US6189168B1 (en) 2000-02-29 2001-02-20 Kurtis F. Graebe Air cell pillow
US6484336B1 (en) * 2001-05-24 2002-11-26 Joseph J. Berke Orthopedic side sleeper comfort pillow and method
US20060236459A1 (en) * 2005-04-26 2006-10-26 Lavin Michael P Pillow
US20070257542A1 (en) * 2004-10-08 2007-11-08 Neal Marshall Seat Portion for a Seat
US20100242179A1 (en) * 2008-09-22 2010-09-30 Nullis Secundus, Inc. Arm-positioning cushion and pillow
US20120073057A1 (en) * 2010-09-29 2012-03-29 Sramek Roger A Pillow having structurally varying core and cover

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293751A (en) * 1940-02-16 1942-08-25 Voorhees Rubber Mfg Co Inc Kneeler and method of making the same
US2878153A (en) * 1955-02-03 1959-03-17 Agricola Reg Trust Method of making mattresses, cushions, upholstery, heat and sound insulating coverings and the like
US2898975A (en) * 1957-10-28 1959-08-11 Dayton Rubber Company Cushioning construction
US2953195A (en) * 1957-09-26 1960-09-20 Curtiss Wright Corp Cushions

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293751A (en) * 1940-02-16 1942-08-25 Voorhees Rubber Mfg Co Inc Kneeler and method of making the same
US2878153A (en) * 1955-02-03 1959-03-17 Agricola Reg Trust Method of making mattresses, cushions, upholstery, heat and sound insulating coverings and the like
US2953195A (en) * 1957-09-26 1960-09-20 Curtiss Wright Corp Cushions
US2898975A (en) * 1957-10-28 1959-08-11 Dayton Rubber Company Cushioning construction

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323152A (en) * 1965-11-01 1967-06-06 Milbern Company Body supports
US3507727A (en) * 1966-02-01 1970-04-21 Mobay Chemical Corp Method of making and seaming covered foam cushioning
US3462776A (en) * 1967-07-06 1969-08-26 Abbott Lab Cored pillow and method of making same
US4021871A (en) * 1975-10-20 1977-05-10 Harold Wortman Process and structure for pillow making
US4110857A (en) * 1976-06-21 1978-09-05 Conwed Corporation Resilient foam cushion structure
US4432110A (en) * 1980-07-11 1984-02-21 Harrison & Jones (Brookside) Limited Cushioning structure
US4731891A (en) * 1985-06-28 1988-03-22 Texas Recreation Corporation Apparatus and method for manufacturing a waterproof pillow
US5256236A (en) * 1989-07-03 1993-10-26 Baker, Knapp & Tubbs, Inc. Method for making a cushion
WO1991007122A1 (en) * 1989-11-17 1991-05-30 National Research Development Corporation Improvements in or relating to pillows
US5494049A (en) * 1992-05-05 1996-02-27 Torso (Australia) Pty Ltd. Physical therapy bolster
US5452488A (en) * 1993-03-01 1995-09-26 Perma Foam Limited Contourable pocket foam mattress and method of manufacture
US5588168A (en) * 1996-01-23 1996-12-31 Byrne; Thomas Contoured symmetrical differential-elasticity neck pillow
US6189168B1 (en) 2000-02-29 2001-02-20 Kurtis F. Graebe Air cell pillow
US6484336B1 (en) * 2001-05-24 2002-11-26 Joseph J. Berke Orthopedic side sleeper comfort pillow and method
US20070257542A1 (en) * 2004-10-08 2007-11-08 Neal Marshall Seat Portion for a Seat
US20060236459A1 (en) * 2005-04-26 2006-10-26 Lavin Michael P Pillow
US7213280B2 (en) * 2005-04-26 2007-05-08 Lavin Industries, Inc. Pillow
US20100242179A1 (en) * 2008-09-22 2010-09-30 Nullis Secundus, Inc. Arm-positioning cushion and pillow
US8176586B2 (en) 2008-09-22 2012-05-15 Berke Joseph J Arm-positioning cushion and pillow
US20120073057A1 (en) * 2010-09-29 2012-03-29 Sramek Roger A Pillow having structurally varying core and cover

Similar Documents

Publication Publication Date Title
US3188665A (en) Cushion structure
US3251077A (en) Spring assembly
US3237834A (en) Laminated container and method of making the same
US3415662A (en) Laminate material
US3212952A (en) Decorative device
US3295643A (en) Luggage
US4424600A (en) Adjustable firmness mattress pillow top
US3568227A (en) Inflatable cushion and apparatus for making same
US1476910A (en) Cake pan
US3754640A (en) Insulated tray and cover therefor
US6131892A (en) Belted pocketed springs and assemblies thereof
US2768924A (en) Cushioning element
US4449261A (en) Bed mattress having an improved pillow top
US4015299A (en) Water bed
US5042098A (en) Fitted top sheet with pleat
US4017931A (en) Liquid filled insoles
US4432110A (en) Cushioning structure
US4106162A (en) Mold for forming a hamburger patty
US4700447A (en) Support pad and method of manufacture
US6651283B1 (en) Air bed
US3732586A (en) Mattress construction
US3051346A (en) Curved divider tray
US3323147A (en) Inflatable bassinets
US7082635B2 (en) Unitized thermoplastic foam structures
US2589577A (en) Ice pack formed of vinyl plastic sheeting