Bell Laboratories, Inc.

Bell Labortories, Inc.

Richard L Leyerle

Daniel C Johnson

Rodents are entrapped in hot melt adhesive which is disposed on a thermoformed thermoplastic base sheet which has a series of closely spaced ridges defining a rodent runway extending the length of the base sheet. The ridges create a series of depressed valleys which receive the adhesive and engage the quantity of adhesive with the base sheet to mechanically retain the adhesive against shifting off the base sheet. A substantially unobstructed expanse of adhesive without exposed ridges is presented on the runway for encounter by a rodent. Two stiffening ribs extend upwardly from the base sheet on either side of the runway to rigidify the base sheet. Multiple protrusions extend adjacent to each stiffening rib exterior to the runway. The protrusions are engaged on top and bottom by parallel projections of rack members within a papers or corrugated container such that multiple glue boards may be stored and dispensed.

Mechanical engagement glue board and dispenser

A tray has sidewalls which extend upwardly from a base sheet. Rodent entrapping adhesive is disposed between the sidewalls on the base sheet. An aggressive mechanical surface, for example in the form of a plurality of closely spaced protruding ridges, are formed to extend upwardly from the base sheet. The adhesive is retained mechanically on the aggressive mechanical surface. A region of the base sheet in the middle of the tray between two regions of aggressive mechanical surface may be left free of ridges to define a reservoir of glue to aid in the rodent entrapping performance of the tray and adhesive assembly.

Glue board with aggressive mechanical surface

Adhesive rodent glue boards are compactly packaged in a flexible plastic wrapper. Thermoformed glue-containing boards have protruding dam walls which extend upwardly from a base wall to define a reservoir for rodent-entrapping glue. The boards have a peripheral rim below the level of the glue. A paperboard sleeve extends between the rim of a first board and the rim of an overlying, inverted, second board, to maintain the glue of the two boards in spaced, non-contacting, relation. The glue extends to a level proximate the upper lip of the dam wall, allowing the board to present a lower profile to targeted rodents.

Growing community of inventors

Madison, WI, United States of America

Richard L Leyerle