Minnesota Mining and Manufacturing Company

Daryl E Vosberg

Bruce E Samuelson

Carl S Ahlberg

A method for making weather strips in which a polyurethane film is positioned along an anvil having longitudinal parallel spaced anvil surfaces and recesses therebetween with elongate channel-like portions of the film in the recesses. Resiliently compressible polyurethane foam is pressed against the polyurethane film along the anvil so that the foam is compressed against the anvil surfaces and extends into the channel-like portions of the film in the recesses. The compressed foam and film along the spaced anvil surfaces are then sonically welded to fuse the foam together in its compressed state and fuse the compressed foam to the film, and the fused foam and film are slit along the anvil surfaces to form separate weather strips.

Method of making a weather strip

A dispensing assembly including an internally pressurized container of viscous liquid which may be dispensed through a hollow stem by deflecting the directing tube and stem to open a valve and cause liquid to flow out through an outlet opening in the directing tube. An overcap having a cavity adapted to receive the stem and directing tube releasably engages the container and has at least one, and preferably two, sockets along its inner surface for storing elongate hollow tapered application nozzles. The application nozzles have inlet ends adapted for engagement around the outlet opening on the directing tube so that the nozzles can be used to apply the liquid as it is discharged from the container.

Growing community of inventors

Cottage Grove, MN, United States of America

Daryl E Vosberg