Absorbent pads having theft alarm activators therein
AssigneePaper-Pak Products, Inc.
InventorWilliam G. Hopkins
Life of this patent
Estimating the term…
Abstract
Absorbent pads with theft alarm activator elements concealed from view within each individual pad. These pads are designed for inclusion in a tray with a meat, fish or poultry product. The alarm activator element in each pad may be a strip or wire of magnetic material of suitable magnetic retentivity. In an alternative arrangement, a resonator may be used in conjunction with a magnetic strip which controls its resonant frequency. In the case of meat or poultry product pads, the element is cored into the pad between pluralities of laminated layers of tissue, cellulose, airlaid or composite. The element may be positioned between adjacent pairs of laminated tissues in a composite pad.
Claims20
A device in the form of an absorbent pad for performing the dual function of absorbing liquids which may bleed from animal-derived food items with which the pad is packed and activating a theft alarm during removal of the packaged food item from a building space equipped with a theft detection system, said absorbent pad comprising:
- a core including a mat of absorbent material;
- an upper sheet and a lower sheet situated on opposite sides of said core, at least one of said sheets being permeable to liquid which may bleed from the associated food item, said sheets having opposite edges which are sealed together to define an envelope encasing said core;
- said mat including at least two separate portions, an upper portion adjacent said upper sheet and a lower portion adjacent said lower sheet;
- and
- an alarm activator element located between said upper and lower portions, said activator element incorporating a magnetic member which is capable of interacting with a remote detector to activate a theft alarm when said magnetic member is in a first one of two alternative conditions, the juxtaposition of said upper and lower portions and said alarm activator element being such that the alarm activator element is not discernible from outside of the packaged food item.
A device in the form of an absorbent pad for packaging with a retail-sale animal-derived food item to absorb liquids which may bleed from said food item, said pad being fabricated to contain a member capable of interacting with apparatus adjacent a building space in which the food item has been stored to activate a theft alarm situated adjacent the point of departure from said building space, said absorbent pad comprising:
- a core including a mat of absorbent material;
- an upper sheet and a lower sheet situated on opposite sides of said core, at least one of said sheets being permeable to liquid which may bleed from the associated food item, said sheets having opposite edges which are sealed together to define an envelope encasing said core;
- said mat including at least two separate portions, an upper portion adjacent said upper sheet and a lower portion adjacent said lower sheet;
- and
- an alarm activator element located between said upper and lower portions, said activator element incorporating a magnetic member which is capable of interacting with a remote detector to activate a theft alarm when said magnetic member is in a first one of two alternative conditions, the juxtaposition of said upper and lower portions and said alarm activator element being such that the alarm activator element is not discernible from outside of the packaged food item.
Dependencies are inferred from the claim text.