US3765040A - Disposable cot sheet - Google Patents

Disposable cot sheet Download PDF

Info

Publication number
US3765040A
US3765040A US3765040DA US3765040A US 3765040 A US3765040 A US 3765040A US 3765040D A US3765040D A US 3765040DA US 3765040 A US3765040 A US 3765040A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
sheet
cot
disposable
tie strips
provide
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
S Holstein
Original Assignee
S Holstein
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
    • A47G9/02Bed linen; Blankets; Counterpanes
    • A47G9/0238Bed linen
    • A47G9/0246Fitted sheets

Abstract

This invention relates to a disposable cot sheet made of spun bonded olefin. The sheet has a pair of tie strips on each side and a pair of loops on each end for tieing the sheet onto a cot to provide a fitted sheet.

Description

United States Patent 1191 Holstein 14 1 Oct. 16, 1973 DISPOSABLE COT SHEET 2,720,269 10/1955 Diacos 5/334 R ux 2,816,054 12/1957 Howden 5/334 R ux [761 Invent Stephen suth 3,308,488 3/1967 Schoonman 5/335 Dallas Avenue, Plttsbufgh, 3,646,624 3/1972 Zipf 5/334 R 15208 3,654,059 4/1972 ZiSblatt 5/334 R x [22] Filed: May 1972 Primary Examiner-Donald A. Griffin [21] Appl. No.: 257,360 Attorney-William J. Ruano 52 U.S. c1 5/334 R [57 Q [51] Int. Cl A47g 9/00 Thls mvemlon relates to a dlsposable cot Sheet made [58] Field of Search 5/336, 335, 334 R, of spun bonded olefin- The Sheet has a p of tie 5 /334 B, 334 C strips on each side and a pair of loops on each end for tieing the sheet onto a cot to provide a fitted sheet. References Cited 1 Claim, 2 Drawing Figures UNXTED STATES PATENTS 2,342,069 2/1944 Wilkinson s" 5/336 ux Patented Oct. 16, 1973 3,765,040

Fig.!. 3 3

DISPOSABLE co'r SHEET This invention relates to a disposable cot sheet, and, more particularly, to one having a chemical composition such as to make it disposable as well as to give the sheet optimum wear and comfort characteristics.

An outstandingdisadvantage of ordinary cotton or linen cot sheets used for day care centers, nurseries, and early childhood education programs in hospitals, is that they are expensive and require constant washing and ironing which increase the expense of maintenance, as well as being susceptible to spreading diseases when used by different patients unless unusual precautions are maintained.

The ordinary disposable material is paper based and while inexpensive, would be uncomfortable in feel to the ordinary sleeper or patient. Likewise it does not haveother desirable characteristics for a sheet, such as smoothness, moisture absorption, tensile strength, etc.

An object of the present invention is to provide a novel disposable sheet which is particularly useful for day care or hospital cots and which will overcome the above named disadvantages.

A more specific object of the present invention is to provide a spun bonded olefin sheet, particularly a fitted sheet, having optimum characteristics and which overcomes the abovenamed disadvantages of ordinary disposable material that is, paper based material.

Other objects and advantages will become more ap-.

parent from a study of the following description, taken with the accompanying drawing wherein:

FIG. 1 'is'a plan view showing a spun bonded olefin sheet in spread out condition and embodying the present invention; and, i I

FIG. 2 is a top perspective view thereof shown tached to a cot.

Referring more particularly to FIGS. 1 and 2 of the drawing, numeral 1 denotes a cot or mattress onto which a sheet 2 is strapped, which sheet is constructed according to the present invention.

Sheet 2 is provided with straps 3, sewed or bonded at 4 to the sheet, which straps may be continuous in length throughout the entire width of the sheet, if desired, to provide greater strength. A total of four. straps or extensions 3 are provided which may be passed through loops 5 stitchedto the two ends of the sheet, along a central. longitudinal line.

FIG. 2 shows how: the straps 3 are wrapped about the corners of the cot or mattress 1, then extended through loop Sand tied together to'form a'bow knot' 7. An: essential feature of the invention resides in the specific-composition of the sheet which, when wrapped about the cot or mattress as shown in FIG. 2, will provide a comfortable and relativelysmooth surface for a child or patient to lie on, particularly'on a day care or hospital cot.

The sheet 2 is made of spunbonded olefin, such as that sold under the trademark Tyvek by E.I. Dupont De Nemours E.I.. & Co. of Wilmington, Del. under different'types, such as Types l0, l4 and 16, however Types 1,4 and 16 being'preferable for the purpose of the present invention. Spunbonded olefin is a family of tough, durable sheet products of high density polyethylene fibers. The sheet is formed by first spinning continuous strands of very fine, interconnected fibers and then bondingthem together with heat and pressure. The resultant product combines surface smoothness, high opacity and toughness to a degree unique as compared to other commonly used sheet products. Types l4 and 16 are preferable since fiber bonding is restricted to discreet points on the sheet for producing a high degree of fiber mobility in the sheet, giving it a fabric-like drape. I

In contrast to Type 10 products, they have higher tear strengths but lower tensile strengths and less smooth surfaces. Also Types l4 and 16 products are perforated which give them higher porosity, additional softness and still better flexibility and drape at some expense of tear and tensile strength. They change less than 0.01 percent between 0 and 100 percent R.H. at constant temperatures to provide dimensional stability. The resistance to water born soils is excellent. They have good resistance to degradation from age, unless overly exposed to ultraviolet rays, although this can be improved with opaque coatings or by adding ultraviolet absorbers to coating formulations. They do not begin to shrink until they obtain a temperature of 245F.. The are inert to most acids. They meet the requirements of the Federal Flammable Fabrics Act CS-l9l-53).

The high opacity is due solely to the multiple refractionof light between the very fine polyethylene fibers and air withinthe densely packed sheet structure. No pigments delustrants or whiteners are added to the product, therefore it can be made transparent in processing by removing the air in the structure, using heat or pressure, or by filling the air spaces with various clear resins, polymers or oils. An important characteristic of Type 16 is that it has an air permeability comparable to that of shirting fabrics along with high moisture-vapor transmission. It does not produce free'lint particles under ordinary use. It is unaffected by water or highly polar solvents-therefore readily washable.

Style 1621B, which is one of the Type 16 styles,'of Dupont Tyvek has a weight of 1.15 ounce per square yard, a thickness of 6' mills, a strip tensile strength of 8/8 pounds per inch MD/XD and an elongation to break'percentage of 18/26, an opacity of percent, an MIT flex of M cycles, and a Frazier porosity of 50 Ft. air/ftF/ min. i

The above Tyvek styles are described for use in making paper sheet. products (.but not bed sheets or cots).

In view of the-abovenamed characteristics,'sheet 2 is uniquely suitable as. a bed or-'cot sheet since it is relatively inexpensive, therefore disposable, and .yet which can, be washed a number of times, if desired,";witho,ut altering its characteristics. Also it is somewhat smooth although not paper-like smooth, therefore comfortable in feel, comparable to a cotton sheet lts breathability and moisture absorptionis of particular benefit for use as a sheet material for beds. The characteristics are particularly maximized when the sheet is draped and held somewhat under tension inthe manner shown in 2- Thus it will be seen that l ave provided a disposable sheetuseful on cots or hospital'cotso r beds, or for general use, such as incottagesorv in ordinary homes, but particularly useful for day care cots so that diseases may not be spreadby the use of thesame sheet for different children. I

While 1' have illustrated and described a single specific embodiment of myinvention, it will be understood that this is by way of illustration only and. that various changes and modifications may be contemplated within end thereof, whereby the sheet may be draped about a the Scope of my invention and the followmg claimscot or mattress and held under tension by passing the I claim:

1. A sheet for a cot or bed consisting of spunbonded olefin and having two tie strips extending from each 5 them together the form Ofa side thereof and a loop extending centrally from each ends of said tie strips through the loops before tieing

Claims (1)

1. A sheet for a cot or bed consisting of spunbonded olefin and having two tie strips extending from each side thereof and a loop extending centrally from each end thereof, whereby the sheet may bE draped about a cot or mattress and held under tension by passing the ends of said tie strips through the loops before tieing them together in the form of a bow.
US3765040A 1972-05-26 1972-05-26 Disposable cot sheet Expired - Lifetime US3765040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US25736072 true 1972-05-26 1972-05-26

Publications (1)

Publication Number Publication Date
US3765040A true US3765040A (en) 1973-10-16

Family

ID=22975991

Family Applications (1)

Application Number Title Priority Date Filing Date
US3765040A Expired - Lifetime US3765040A (en) 1972-05-26 1972-05-26 Disposable cot sheet

Country Status (1)

Country Link
US (1) US3765040A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859678A (en) * 1973-10-09 1975-01-14 Rachel D Davis Disposable bed covering
US4021870A (en) * 1976-01-23 1977-05-10 Hygeia Corporation Bedding draw sheet
US4862541A (en) * 1988-05-12 1989-09-05 Hutton William B Device for attaching a sheet to a mattress
US5221273A (en) * 1991-03-28 1993-06-22 Medical Disposables Company Underpad
US5487826A (en) * 1993-05-27 1996-01-30 International Envelope Company, Inc. Cardboard mailer packages
US6345400B2 (en) 1999-04-26 2002-02-12 Earlychildhood Llc Portable cot apparatus
US6627032B1 (en) 1998-11-09 2003-09-30 Fiber-Tec, Inc. Method of making a high strength and single use bed and gurney covering
US6845529B2 (en) * 2003-03-05 2005-01-25 Trygve Berge Disposable transport mat
US20050102750A1 (en) * 2003-03-05 2005-05-19 Trygve Berge Disposable transport mat
US20070174962A1 (en) * 2006-01-30 2007-08-02 Mary Smith Mattress protector
US7849536B2 (en) * 2005-12-14 2010-12-14 Sca Hygiene Products Ab Underlay
US20110308015A1 (en) * 2010-03-22 2011-12-22 Paul Newham Fitted Mattress Cover with Integrated Sensor Elements for Monitoring the Presence of a Person on a Mattress
US20150074906A1 (en) * 2013-09-17 2015-03-19 Hiatt's Chair Saver, Inc. Incontinence Bed Cover

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2342069A (en) * 1942-04-25 1944-02-15 Margaret C Wilkinson Safety device for infants
US2720269A (en) * 1953-04-24 1955-10-11 Diacos Theodore Harry Fire blanket
US2816054A (en) * 1953-04-13 1957-12-10 Permex Corp Quilted material
US3308488A (en) * 1965-05-03 1967-03-14 Richard J Schoonman Bacteriostatic drawsheet
US3646624A (en) * 1969-09-24 1972-03-07 Blessings Inc Disposable drawsheet
US3654059A (en) * 1968-10-17 1972-04-04 Allison C Collard Disposable covering

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2342069A (en) * 1942-04-25 1944-02-15 Margaret C Wilkinson Safety device for infants
US2816054A (en) * 1953-04-13 1957-12-10 Permex Corp Quilted material
US2720269A (en) * 1953-04-24 1955-10-11 Diacos Theodore Harry Fire blanket
US3308488A (en) * 1965-05-03 1967-03-14 Richard J Schoonman Bacteriostatic drawsheet
US3654059A (en) * 1968-10-17 1972-04-04 Allison C Collard Disposable covering
US3646624A (en) * 1969-09-24 1972-03-07 Blessings Inc Disposable drawsheet

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859678A (en) * 1973-10-09 1975-01-14 Rachel D Davis Disposable bed covering
US4021870A (en) * 1976-01-23 1977-05-10 Hygeia Corporation Bedding draw sheet
US4064577A (en) * 1976-01-23 1977-12-27 Hygeia Corporation Bedding draw sheet
US4862541A (en) * 1988-05-12 1989-09-05 Hutton William B Device for attaching a sheet to a mattress
US5221273A (en) * 1991-03-28 1993-06-22 Medical Disposables Company Underpad
US5487826A (en) * 1993-05-27 1996-01-30 International Envelope Company, Inc. Cardboard mailer packages
US6627032B1 (en) 1998-11-09 2003-09-30 Fiber-Tec, Inc. Method of making a high strength and single use bed and gurney covering
US6345400B2 (en) 1999-04-26 2002-02-12 Earlychildhood Llc Portable cot apparatus
US6845529B2 (en) * 2003-03-05 2005-01-25 Trygve Berge Disposable transport mat
US20050102750A1 (en) * 2003-03-05 2005-05-19 Trygve Berge Disposable transport mat
US7020912B2 (en) 2003-03-05 2006-04-04 Trygve Berge Disposable transport mat
US7849536B2 (en) * 2005-12-14 2010-12-14 Sca Hygiene Products Ab Underlay
US20070174962A1 (en) * 2006-01-30 2007-08-02 Mary Smith Mattress protector
US20110308015A1 (en) * 2010-03-22 2011-12-22 Paul Newham Fitted Mattress Cover with Integrated Sensor Elements for Monitoring the Presence of a Person on a Mattress
US20150074906A1 (en) * 2013-09-17 2015-03-19 Hiatt's Chair Saver, Inc. Incontinence Bed Cover

Similar Documents

Publication Publication Date Title
US3568227A (en) Inflatable cushion and apparatus for making same
US3484330A (en) Disposable fabric
US4552795A (en) Inelastic, heat-elasticizable sheet material
US5966759A (en) Mattress cover
US5102711A (en) Breathable layered materials
US3047444A (en) Non-woven fabric and method of making the same
US4381611A (en) Method and apparatus for absorbing moisture
US4844965A (en) Absorptive device for incontinent patients
US3295526A (en) Disposable diapers and the like
US4756942A (en) Elastic fabric
US3949128A (en) Product and process for producing a stretchable nonwoven material from a spot bonded continuous filament web
US5652049A (en) Antibacterial composite non-woven fabric
US5677028A (en) Absorbent material
US4655760A (en) Elasticized garment and method of making the same
US4047534A (en) Nursing pad
US1567931A (en) Compress
US7089639B2 (en) Method for manufacturing support pillows
US4338938A (en) Washable diaper
US4724183A (en) Woven sheeting material and method of making same
US5790983A (en) Elasticized top garment
US5530979A (en) Mattress coverings
US2705688A (en) Nonwoven fabric and method of producing same
US2161539A (en) Diaper
US5085653A (en) Durable and reusable incontinent underpads
US3965503A (en) Method of producing an absorbent, washable, protective mattress sheet and a sheet produced thereby