Robert A Luhman

US Patent:

53125010, May 17, 1994

Filed:

Aug 17, 1990

Appl. No.:

7/568842

Inventors:

Michael W. Gruber - Woodbury MN
Robert A. Luhman - Deer Park WI

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B32B 3100

US Classification:

156238

Abstract:

An automatic application device for dispensing an adhesive transfer tape with the liner removed includes a hub for rotatably supporting a roll of adhesive transfer tape and an application head for pressing the adhesive transfer tape unwound from the roll onto a product to which it is to be applied. An idler roller is disposed above the application head to pull the liner away from the application head. A motor driven take-up roller and corresponding nip roller are provided to pull the liner along its path over said idler roller away from the application head. A brake roller is provided along the path of the transfer tape between the roll and the application head to selectively stop the tape's advance. When the brake roller is released, the product to which the adhesive is applied pulls the tape underneath the application head, unwinding it from the roll. When the brake roller is stopped, the tape stops advancing and the adhesive strip carried on the liner is broken.

US Patent:

51526549, Oct 6, 1992

Filed:

Oct 4, 1990

Appl. No.:

7/594640

Inventors:

Robert A. Luhman - Deer Park WI
Gary K. Kuhn - Scandia MN
Kenneth J. Perrington - Maplewood MN
Karl M. Kropp - St. Paul MN
Michael W. Gruber - Huntsville AL

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B42C 902

US Classification:

412 37

Abstract:

An apparatus for binding a plurality of sheets of paper together is disclosed. A pair of clamping plates presents one edge of the sheets for binding after a jogging plate aligns the edges. After a solid hot melt adhesive material sheet is placed along the edge of the sheets, a heating platen heats and melts the hot melt adhesive material sheet and causes the liquid adhesive to bind the sheets together. The method of binding the stack of a plurality of sheets of paper includes positioning a plurality of sheets between the clamping plates, vibrating the sheets to square and align their edges, clamping the aligned sheets of paper, presenting the aligned edge of the paper to the heating platen, placing an adhesive hot melt material sheet on the edge of the sheets, heating and melting the hot melt adhesive material sheet onto the edge, and removing the bound sheets from the apparatus.

US Patent:

56413785, Jun 24, 1997

Filed:

Jan 19, 1996

Appl. No.:

8/580399

Inventors:

Robert A. Luhman - New Richmond WI
Craig D. Thompson - Inver Grove Heights MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B44C 110

US Classification:

156577

Abstract:

An adhesive sheeting applicator and method adapted to dispense strips of adhesive-backed sheeting from a supply roll rotatably disposed thereon and to apply said strips of sheeting to a surface with a desired spacing between successive strips by advancing the applicator a distance along the surface, the sheeting on the supply roll being in successive cut strips applied to a continuous substrate liner. The applicator includes an application device for compressively engaging the adhesive of a strip of the adhesive sheeting to a surface commencing at a first end of the strip of adhesive sheeting and progressing to a second of the strip of adhesive sheeting as the applicator is advanced a distance along the surface and an adhesive sheeting spacing device for feeding a successive strip of adhesive sheeting from the supply roll to the application means as a function of the distance along the surface that the applicator has been advanced, whereby a desired spacing is achieved between successive strips of adhesive sheeting applied to the surface.

US Patent:

49800116, Dec 25, 1990

Filed:

Jan 27, 1988

Appl. No.:

7/148845

Inventors:

Michael W. Gruber - Woodbury MN
Robert A. Luhman - Deer Park WI

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B32B 3100
B44C 100

US Classification:

156361

Abstract:

An automatic application device for dispensing an adhesive transfer tape with the liner removed includes a hub for rotatably supporting a roll of adhesive transfer tape and an application head for pressing the adhesive transfer tape unwound from the roll onto a product to which it is to be applied. An idler roller is disposed above the application head to pull the liner away from the application head. A motor driven take-up roller and corresponding nip roller are provided to pull the liner along its path over said idler roller away from the application head. A brake roller is provide along the path of the transfer tape between the roll and the application head to selectively stop the tape's advance. When the brake roller is released, the product to which the adhesive is applied pulls the tape underneath the application head, unwinding it from the roll. When the brake roller is stopped, the tape stops advancing and the adhesive strip carried on the liner is broken.

US Patent:

55360440, Jul 16, 1996

Filed:

Jun 13, 1994

Appl. No.:

8/258764

Inventors:

Robert A. Luhman - Deer Park WI
Gary K. Kuhn - Scandia MN
Kenneth J. Perrington - Maplewood MN
Karl M. Kropp - St. Paul MN
Michael W. Gruber - Huntsville AL

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B42D 500

US Classification:

281 40

Abstract:

An apparatus for binding a plurality of sheets of paper together is disclosed. A pair of clamping plates presents one edge of the sheets for binding after a jogging plate aligns the edges. After a solid hot melt adhesive material sheet is placed along the edge of the sheets, a heating platen heats and melts the hot melt adhesive material sheet and causes the liquid adhesive to bind the sheets together. The method of binding the stack of a plurality of sheets of paper includes positioning a plurality of sheets between the clamping plates, vibrating the sheets to square and align their edges, clamping the aligned sheets of paper, presenting the aligned edge of the paper to the heating platen, placing an adhesive hot melt material sheet on the edge of the sheets, heating and melting the hot melt adhesive material sheet onto the edge, and removing the bound sheets from the apparatus.

US Patent:

54821827, Jan 9, 1996

Filed:

Oct 7, 1994

Appl. No.:

8/319890

Inventors:

Craig D. Thompson - Inver Grove Heights MN
Robert A. Luhman - Deer Park WI

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B65H 528

US Classification:

221 73

Abstract:

The invention relates to a portable dual advance dispenser for a supply of linered tape material having an adhesive tape mounted in separable strips on a release liner. The dispenser includes a frame for supporting a supply of linered tape material and a dispensing apparatus for dispensing desired portions of the linered tape. The dispensing apparatus includes a rotatable liner dispensing member which directs a portion of the liner in a different direction from the adhesive tape, a rotatable adhesive tape material dispensing apparatus for dispensing the adhesive tape, a separation member to separate the liner from the adhesive tape, and a drive transfer mechanism which causes interaction between the rotatable adhesive tape material dispensing apparatus and the rotatable liner dispensing member. If the user selects a first dispensing option, adhesive tape is pulled from the adhesive tape dispensing apparatus, and the liner is advanced through the liner dispensing apparatus. If the user selects a second dispensing option, then the liner is pulled from the liner dispenser apparatus, and the adhesive tape is advanced through the adhesive tape dispensing apparatus.

US Patent:

53523202, Oct 4, 1994

Filed:

Nov 24, 1993

Appl. No.:

8/158037

Inventors:

Mark E. Schwartz - Mahtomedi MN
James D. Ramacier - Hugo MN
Robert A. Luhman - Deer Park WI
Raymond D. Zachrison - Lindstrom MN

Assignee:

Minnesota Mining and Manufacturing Company - Saint Paul MN

International Classification:

B32B 3100

US Classification:

156494

Abstract:

The present invention is a portable manual tape dispensing apparatus for use with a stretchable adhesive tape such as of the type that progressively detackifies when stretched. The apparatus has a supply spool for carrying a supply of the tape and a handle connected to the supply spool for manually grasping and manipulating the apparatus. A mechanism for stretching the tape is arranged and configured to receive the tape from the supply spool. The stretching mechanism has a stretching zone defined between first and second engagement surfaces. The first and second engagement surfaces frictionally engage the tape and move at disparate longitudinal speeds to stretch the tape when the stretching mechanism is activated. A manually operative mechanism is provided for selectively activating the stretching mechanism so an operator can remove the tape from the supply in a substantially detackified stretched condition when the stretching mechanism is activated. The manually operative mechanism also permits the operator to remove the tape from the supply in an unstretched condition.

US Patent:

D3960617, Jul 14, 1998

Filed:

Sep 29, 1997

Appl. No.:

D/077232

Inventors:

Craig D. Thompson - Inver Grove Heights MN
Robert A. Luhman - New Richmond WI

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

1902

US Classification:

D19 69