# US 4,391,010 A · Disposable draw sheet

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- Number: US 4,391,010 A
- Document ID: US4391010A
- Status: Granted
- Kind: A
- Application number: 06/293,864
- Filed: 1981-08-18
- Granted: 1983-07-05
- Earliest claimed: 1981-08-18
- Assignees: Hosposable Products Inc.
- Inventors: Albert F. Kronman
- Web page: https://patentgrep.com/patent/US4391010A

## CPC

- A61F 5/485: {Absorbent protective pads (mattress underlays A47C21/06; bed linen A47G9/02)}
- A47G 9/0238: {Bed linen}
- A61F 13/534: having an inhomogeneous composition through the thickness of the pad (A61F13/538, A61F13/539 take precedence)
- A61F 2013/53445: {from several sheets}
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- A47G: HOUSEHOLD OR TABLE EQUIPMENT (book-ends A47B5/00; knives B26B)

## Abstract

A disposable draw sheet for use on bed mattresses in which a thin sheet of liquid impervious material supports a liquid absorbent material layer. The liquid impervious sheet is wide enough to be tucked under each side of the mattress. Pockets formed by doubling the longitudinal margins of the sheet back upon themselves and tacking them at spaced discrete areas provide easy application and removal of the draw sheets.

## Claims

### Claim 1

A disposable draw sheet for application to the mattress of a bed comprising a thin sheet of liquid impervious material, a top surface, a bottom surface, longitudinal margins on said sheet and a sheet width substantially greater than that of the mattress to which it is to be applied so that said sheet margins may be tucked under said mattress on opposite sides thereof, a layer of liquid absorbent material carried by the top surface of the sheet across the midregion of said sheet, said absorbent material being of a width less than the top of the mattress, a doubled back portion on the longitudinal margins of the sheet, and means to secure the doubled back portion of the said margins to the top surface of the said sheet in at least two spaced discrete areas to form at least one pocket in each of the doubled back portions.

### Claim 2 (depends on 1)

A draw sheet according to claim 1 in which the sheet is a plastic material.

### Claim 3 (depends on 2)

A draw sheet according to claim 2 in which the doubled back securing means is a weld.

### Claim 4 (depends on 1)

A draw sheet according to claim 1 in which the liquid absorbent material is made of cotton fibers bonded to the top surface of the sheet.

### Claim 5 (depends on 1)

A draw sheet according to claim 1 in which the doubled back portion of the margins form a thickened inner edge on each of the said margins.

### Claim 6 (depends on 1)

A draw sheet according to claim 1 in which the sheet has a thickness of the order of 1 mil.

### Claim 7 (depends on 1)

A draw sheet according to claim 1 in which the doubled back securing means is an adhesive.

### Claim 8 (depends on 1)

A draw sheet according to claim 1 in which the doubled back portion of the margins are secured at a plurality of spaced areas to form a series of pockets therebetween.