3M Innovative Properties Company

Joel K Hagglund

Martin E Broen

Shaelyn D Crutchley

Johannes Bayer

Marcela S Iglesias

Jorge C Ceballos

Joy A Packard

Thomas I Insley

Todd W Johnson

James E Nash

Arthur V Lang

Kenneth J Kirchhoff

Gerald E Mueller

Jia Hu

Gary A Albrecht

An adhesive tape dispenser is provided that includes a lower housing () that includes a pivot post () substantially perpendicular to a back wall of the lower housing, a back plate () assembly that includes a push button () assembly, a tape unwind spool (), a lower pin (), an upper pin (), and a wedge () that is slideably engaged with the lower housing, and a blade assembly unit () that includes a cutter arm (). The cutter arm includes a cutting blade () and a semi-tubular opening () that slideably engages the pivot post () of the lower housing. The cutter arm also includes an outer edge that guides along the wedge and lifts the forward end of the cutter arm (that includes the cutting blade) when the back plate assembly is urged forward by pressing the push button assembly forward. When the push button assembly is urged rearward, a lever arm and a lever foot () engage the upper and lower pin () of the back plate assembly forcing the cutter arm to pivot so that the front of the cutter arm is forced downward allowing the cutting blade to cut the adhesive tape.

Adhesive tape dispenser for single hand operation

Tape dispenser

An adjustable keyboard support assembly, which generally includes a housing comprising a first side panel having a first guide rail system and a second side panel spaced from the first side panel and having a second guide rail system. The assembly further includes a generally U-shaped member comprising a support member with first and second ends, a first side arm attached to the first guide rail system and extending from the first end of the support member, wherein the first side arm comprises at least one notch, and a second side arm attached to the second guide rail system and extending from the second end of the support member, wherein the second side arm comprises at least one notch. The first and second side arms have rotatable and slideable connections with the guide rail system of their respective side panels. A keyboard platform is rotatably attached to the support member of the U-shaped member. A first latching member extends from the first side panel for engagement with the at least one notch of the first side arm, and a second latching member extends from the second side panel for engagement with the at least one notch of the second side arm.

Adjustable keyboard support assembly

An electrofiltration process is provided having at least one electrostatically charged polymeric film layer having surface structures. The film layers may be configured as a collection cell that has the structured film layer defining a plurality of ordered inlet openings through a face of the collection cell and corresponding air pathways, thereby forming an open, porous volume. The air pathways are defined by a plurality of flow channels formed by the structured film layers. The electrofiltration process is coupled with an ionizer which actively induces charges onto the particles to be removed by the collection cell.

Electrofiltration process

An electrofiltration apparatus is provided having at least one electrostatically charged polymeric film layer having surface structures. The film layers may be configured as a collection cell that has the structured film layer defining a plurality of ordered inlet openings through a face of the collection cell and corresponding air pathways, thereby forming an open, porous volume. The air pathways are defined by a plurality of flow channels formed by the structured film layers. The electrofiltration apparatus is coupled with an ionizer which actively induces charges onto the particles to be removed by the collection cell.

Electrofiltration apparatus

Growing community of inventors

Lonsdale, MN, United States of America

Joel K Hagglund