Richard M Strebel

US Patent:

6612228, Sep 2, 2003

Filed:

Jul 14, 2000

Appl. No.:

09/618213

Inventors:

Richard Michael Strebel - Appleton WI

Assignee:

Metso Paper, Inc. - Helsinki

International Classification:

B30B 500

US Classification:

100168, 100173, 100162 R, 100163 R, 100163 A

Abstract:

A calender having a supporting frame and a set of rolls attached to vertical portions of the supporting frame so as to form a stack of rolls in which adjacent rolls placed one above another form calendering nips therebetween. The stack including a top roll, a bottom roll and a plurality of intermediate rolls between the top roll and the bottom roll. The intermediate rolls are attached revolvingly to arms pivoted on auxiliary frames attached to vertical portions of the supporting frame. A method of rebuilding a calender in which auxiliary frames are attached to the vertical portions of the existing calender frame and thereafter pivotal arms for the intermediate rolls are mounted on the auxiliary frames.

US Patent:

6758134, Jul 6, 2004

Filed:

May 23, 2003

Appl. No.:

10/444414

Inventors:

Richard Strebel - Appleton WI

Assignee:

Metso Paper, Inc. - Helsinki

International Classification:

B30B 1300

US Classification:

100 35, 100168, 100155 R, 298971, 294011, 2940203

Abstract:

A calender having a supporting frame and a set of rolls attached to vertical portions of the supporting frame so as to form a stack of rolls in which adjacent rolls placed one above another form calendering nips therebetween. The stack including a top roll, a bottom roll and a plurality of intermediate rolls between the top roll and the bottom roll. The intermediate rolls are attached revolvingly to arms pivoted on auxiliary frames attached to vertical portions of the supporting frame. A method of rebuilding a calender in which auxiliary frames are attached to the vertical portions of the existing calender frame and thereafter pivotal arms for the intermediate rolls are mounted on the auxiliary frames.

US Patent:

7237743, Jul 3, 2007

Filed:

Jul 16, 2004

Appl. No.:

10/892817

Inventors:

Dennis S. Czechowicz - Appleton WI, US
Richard M. Strebel - Appleton WI, US

Assignee:

Metso Paper, Inc. - Helsinki

International Classification:

B65H 35/08

US Classification:

242527, 2425272, 2425273, 2425322

Abstract:

A tail turn-up assembly has a frame positioned upstream of a reel spool. A carriage is pivotally mounted to the frame by a four bar linkage. The carriage is pivotable, from a retracted position to an extended position. When the carriage is engaged with the reel spool, a pair of curved tracks are positioned so that arcs defined by the tracks have their centers coincident with the spool axis. A knife carriage rides on the curved tracks and is constrained to move circumferentially about the reel spool. An actuator on the carriage causes the knife carriage to traverse circumferentially about the reel spool. The knife carriage has a leading edge formed by a knife which tears through the a tail which is cut from the web when the knife carriage is moved on the curved tracks.

US Patent:

20030116035, Jun 26, 2003

Filed:

Dec 20, 2001

Appl. No.:

10/027121

Inventors:

Richard Strebel - Appleton WI, US

International Classification:

B30B003/00
B30B003/04

US Classification:

100/159000

Abstract:

A supercalender has a top roll, a bottom roll, and a plurality of intermediate rolls. The intermediate rolls are mounted to support frames by pivot arms. The pivot radius defined by the arms is at least about 2 times the diameter of the largest intermediate roll. Hydraulic load support cylinders are arranged between the intermediate roll bearings and anchor points which are spaced away from the intermediate rolls, to allow greater movement without mechanical interference between hydraulic load support cylinders. The greater length of the pivot arms combined with a greater stroke of the load support cylinders allows the supercalender to accommodate filled rolls which change diameter substantially over their life, as the surface of the rolls is repeatedly turned down to refurbish the roll surface. The calender may be based on an existing calender of the closed A-frame type. One half of each A-frame in the machine direction is removed and a weldment is bolted to the track of each remaining frame along which the bearing housings of the calender rolls formally rode.

US Patent:

20080000363, Jan 3, 2008

Filed:

Jul 17, 2006

Appl. No.:

11/457950

Inventors:

Richard M. Strebel - Appleton WI, US

Assignee:

METSO PAPER, INC. - Helsinki

International Classification:

B30B 3/04

US Classification:

100169, 100155 R

Abstract:

A dynamic vibration absorber within a roll of a calender has a viscoelastic spring and damping element, which is compressed to adjust and control the spring constant and so the frequency response of the vibration absorber. The viscoelastic spring and damping element is compressed by a mechanical arrangement, or a hydraulic arrangement, which can be actuated exterior to the roll shell. One embodiment employs an adjustment rod, having left hand threaded portions and right hand threaded portions such that when the adjustment rod is rotated to cause two masses mounted interior to the roll shell to be drawn together compressing one or more viscoelastic spacers therebetween. A further embodiment adjustable dynamic vibration damper increases or decreases a secondary mass by adding or removing liquid from the interior of the secondary mass. This also has the effect of adjusting the characteristic frequency of the dynamic vibration absorber.