Minnesota Mining and Manufacturing Company

3m Innovative Properties Company

Walter C Pearson

Charles W Stobbie, Iv

Robert R Rohloff

Neil J Schwartzbauer

Gerald W Quinn

Gerald P Schouten

Dorman N Thompson, Jr

A combination for use in storing and applying moisture curable materials which includes (1) a container assembly with a tubular wall of moisture vapor transmissive polymeric material having an inner surface defining a chamber and a plunger within the tubular wall adapted to move along the wall toward an outlet end in sealing engagement with an inner surface of the wall; (2) a moisture curable material within the chamber which is solid at normal room temperature, is softenable to a suitable viscosity for application of less than 30,000 centipoise when heated to a temperature in the range of about 140 to 230 degrees Fahrenheit or 60 to 110 degrees Centigrade, and has little adhesion to the wall, even when said adhesive is moisture cured; and (3) an envelope of moisture impermeable material around the container assembly.

Combination for storing and applying heat softenable moisture curable materials

An applicator assembly is provided for concurrently dispensing plural flowable component materials in a mixed state. Moreover, the applicator assembly is more versatile and is particularly useful when one or more additional components are to be concurrently dispensed with the basic two component materials. The applicator assembly permits dispensing of additives with basic two part mixtures, and allows the application of three or more part chemical systems. A multi-component applicator assembly is described which is convertible between different component number multi-component arrangements, and includes a barrel assembly having at least one barrel detachably connected to the other barrels, at least two of which are fixed to one another.

Multi-component applicator assembly

A method for adhesively bonding an at least partially hollow first member to a second member received interiorly of the first member. Adhesive is applied to the second member and allowed to attain a substantially nonflowable condition. The first and second members are positioned such that the first member at least partially overlies the nonflowable adhesive on the second member. The adhesive is reactivated and then cooled to adhesively bond the first and second members together. An adhesive dispenser for applying the adhesive to the second member is also disclosed.

Method for adhesively bonding close fitting components

A method for heating and dispensing hot melt materials in which the hot melt material is contained in a tube having a cylindrical outer surface portion over a majority of its length, and the hot melt material in the tube is heated by a heater assembly through a heat transfer member having a cylindrical inner surface adapted to closely receive the cylindrical outer surface portion of the tube.

Method and combination for heating and dispensing hot melt materials

A container and cap assembly includes a double barrel dispensing container having two side-by-side outlets, and a cap with two side-by-side closure portions for simultaneously closing both outlets when the cap is connected to the container. The cap includes two protruding orienting sections for orienting the cap relative to the container as the cap is connected to the container. The orienting sections insure that each closure portion comes into contact with the same outlet each time the cap is coupled to the container so that small quantities, if any, of materials flowing through one outlet and deposited on one closure portion of the cap cannot cross-contaminate materials in the remaining barrel after the cap is removed and then re-connected to the container after a dispensing operation.

Double barrel dispensing container and cap therefor

A combination for heating and dispensing hot melt materials in which the hot melt material is contained in a tube having a cylindrical outer surface portion over a majority of its length, and the hot melt material in the tube is heated by a heater assembly through a heat transfer member having a cylindrical inner surface adapted to closely receive the cylindrical outer surface portion of the tube.

A binding machine for binding a stack of sheets together by the use of a strip of tape has a slot for receiving and aligning sheets, the sheets are then clamped along one edge and a flexible sheet is used to roll and hold said sheets in an arc over the clamping means to offset said edges evenly and hold the same on a platen for positioning a length of pressure-sensitive tape along said edges for binding said sheets together.

Apparatus for binding sheets together

Holder for multiple pads of notepaper

Notepaper pad holder

Combined notepaper pad and pen holder

Dual notepaper pad and pen holder

A method for anchoring a metal tape-cutting blade to a thermoplastic resin frame of a tape dispenser. The plate is pierced to produce a plurality of plate portions projecting around an opening. The projections are positioned against the frame. Ultrasonics are used to locally heat the frame while the projections are pressed into it, whereupon a portion of the thermoplastic frame material flows into the opening between the projections and upon solidification holds the blade in place.

Tape-cutting blade attaching method

Tape dispenser

A dispenser and applicator for double coated pressure sensitive adhesive tape comprising a feed wheel for advancing tape from the roll, cutting a definite length of tape, stripping the length of tape from the roll and applying it to a receptor with the stripping and applicating fingers being then releasable from the tape.

Growing community of inventors

Saint Paul, MN, United States of America

Walter C Pearson