Reusable fabric-covered heat-exchange bag
AssigneeSePro Healthcare Inc.
InventorEdward Murphy
Life of this patent
Estimating the term…
Abstract
A reusable, fabric-covered heat exchange bag is provided which includes a thermoplastic waterproof liner means having an interior containment area and an opening for receiving a hot or cold medium, such as hot water or ice. Disposed on a significant portion of the exterior surface of the liner is a thermoplastic fabric-like cover which is joined to the liner to define a peripheral region of the reusable heat exchange bag. The heat seal arrangement which forms the peripheral region of the bag also facilitates the severing of the reusable heat exchange bag from a sheet of stock material.
Claims21
A reusable heat exchange bag, comprising:
- thermoplastic waterproof liner means having an interior containment area and an exterior surface thereon, said liner means having an opening for receiving a hot or cold medium, including hot water or ice;
- thermoplastic fabric cover means disposed on a significant portion of said exterior surface;
- said thermoplastic fabric cover means and said thermoplastic waterproof liner means joined by heat seal means, said heat seal means defining a peripheral region of said reusable heat exchange bag and comprising tear means comprising a substantially non-fibrous thermoplastic heat seal for substantially simultaneously facilitating the severing of said reusable heat exchange bag from a sheet of thermoplastic waterproof stock material and a sheet of thermoplastic fabric stock material.
The reusable heat transfer bag of claim 2 wherein said liner means comprises polyethylene.
A reusable heat exchange bag, comprising:
- (a) a waterproof polyethylene film liner having an interior containment area and an exterior surface thereon, said liner having an opening for receiving a hot or cold medium, including hot water or ice;
- a non-woven polyethylene fabric cover disposed on a significant portion of said exterior surface, said liner and said cover joined together along a peripheral region of said reusable heat exchange bag by a plurality of heat seals, at least one of said plurality of heat seals disposed for substantially simultaneously facilitating the severing of said bag from a waterproof polyethylene film source and a non-woven polyethylene fabric source, and upon said severing, comprising a tapered edge comprising a substantially non-fibrous polyethylene heat seal of less than about one mil.
An intermediate article of manufacture, comprising:
- thermoplastic waterproof liner means having an interior containment area and an exterior surface thereon;
- thermoplastic fabric cover means disposed on a significant portion of said exterior surface, said thermoplastic fabric cover means and said thermoplastic waterproof liner means joined by heat seal means defining an outline of said reusable heat exchange bag on said intermediate article, said heat seal means comprising a substantially continuous non-fibrous heat seal for facilitating the severing by substantially simultaneously tearing of said reusable heat exchange bag from a remaining portion of said thermoplastic fabric cover means and said thermoplastic waterproof liner means.
Dependencies are inferred from the claim text.