Abstract: A self-compensating tube assembly is disclosed for use in a doctor blade holder. The self-compensating tube assembly includes a tube including a membrane that encloses a liquid with a substantially invariable bulk modulus of elasticity, density and viscosity; and chatter responsive for providing any of monitoring means of blade chatter through pressure, damping of blade chatter, and minimizing blade chatter.

Abstract: A wear element is disclosed that includes at least two layers of a structural material and at least one layer of a non-solid metal material, wherein the non-solid metal material includes a non-homogenous edge for contacting a roll surface.

Abstract: A method is disclosed of facilitating the removal of contaminates from a belt in a papermaking system. The method includes the step of providing a fluid in a shaped fan such that the interface between the fluid and the belt is non-linear and at least generally forms the shape of an arc.

Abstract: A system is disclosed for removing fluids from a felt in a paper making process. The system includes a vacuum source for providing a vacuum adjacent a vacuum plate against the felt is moved, and crescent shaped openings in the vacuum plate through which the vacuum is applied to the felt for the removal of the fluids.

Abstract: A system is disclosed for removing fluids from a felt in a paper making process. The system includes a fluid in a reservoir that is adapted to permit a surface of the fluid to contact an underside of the felt.

Abstract: A planar element is disclosed for use in a papermaking system. The planar element is suitable for use as a doctor blade or a top plate and includes a three-dimensional composite structure including elongated elements extending in at least three orthogonal directions, and a resin in which the three-dimensional composite structure is embedded.

Abstract: A fiber reinforced composite material containing a polymeric resin matrix reinforced by fabrics consisting of co-mingled glass/carbon yarns for a doctor blade.

Abstract: The invention provides a doctor blade holder system that includes a doctor blade support structure, an adjustment profiling plate, and a series of adjustment mechanisms. The doctor blade support structure includes an elongated slot for receiving a doctor blade and a separate elongated slot to house mounting hardware. The adjustable profiling plate causes pressure to be applied to the working blade in a continuous manner along the length of the working blade, wherein the profiling plate is mounted to a holder mounting plate with a series of pairs of mounting structures allowing unconstrained flexure, or rotation, of the profiling plate with respect to holder mounting plate around two axes. The series of adjustment mechanisms attach to the holder mounting plate and acting on the profiling plate, wherein the adjustment mechanisms are capable of displacing the profiling plate in a bi-directional manner.

Abstract: A doctor blade cartridge for use in a doctor blade holder is disclosed. The doctor blade cartridge is for receiving a doctor blade, and includes at least one blade supporting member, wherein the blade supporting member is sufficiently stiff to support the doctor blade and includes load indication means for providing a signal indicative of at least one of blade supporting member strain and blade supporting member deflection.

Abstract: Whitewater recovery processes, and associated systems and components, are generally described. Certain embodiments relate to whitewater recovery processes in which ion exchange is used to remove dissolved ions from the whitewater, which can reduce the degree to which chemical additives are used in the process. In certain embodiments, flocculation and/or filter components can be employed to aid in the removal of suspended solids from the whitewater.

Abstract: Whitewater recovery processes, and associated systems and components, are generally described. Certain embodiments relate to whitewater recovery processes in which ion exchange is used to remove dissolved ions from the whitewater, which can reduce the degree to which chemical additives are used in the process. In certain embodiments, flocculation and/or filter components can be employed to aid in the removal of suspended solids from the whitewater.

Abstract: Whitewater recovery processes, and associated systems and components, are generally described. Certain embodiments relate to whitewater recovery processes in which ion exchange is used to remove dissolved ions from the whitewater, which can reduce the degree to which chemical additives are used in the process. In certain embodiments, flocculation and/or filter components can be employed to aid in the removal of suspended solids from the whitewater.

Abstract: A doctor blade cartridge for use in a doctor blade holder is disclosed. The doctor blade cartridge is for receiving a doctor blade, and includes at least one blade supporting member, wherein the blade supporting member is sufficiently stiff to support the doctor blade and includes load indication means for providing a signal indicative of at least one of blade supporting member strain and blade supporting member deflection.

Abstract: A self-compensating tube assembly is disclosed for use in a doctor blade holder. The self-compensating tube assembly includes a tube including a membrane that encloses a liquid with a substantially invariable bulk modulus of elasticity, density and viscosity; and chatter responsive for providing any of monitoring means of blade chatter through pressure, damping of blade chatter, and minimizing blade chatter.

Abstract: A doctor blade holder system is disclosed that includes a doctor blade holder that includes a doctor blade receiving region for receiving a doctor blade, and an actuation system for causing the doctor blade receiving region to be selectively moved toward or away from a roll surface by rotating the doctor blade holder about a first axis, wherein the doctor blade holder system is generally circular shaped in cross-sectional area and wherein the first axis is generally centrally locate with the generally circular cross-sectional area.

Abstract: Whitewater recovery processes, and associated systems and components, are generally described. Certain embodiments relate to whitewater recovery processes in which ion exchange is used to remove dissolved ions from the whitewater, which can reduce the degree to which chemical additives are used in the process. In certain embodiments, flocculation and/or filter components can be employed to aid in the removal of suspended solids from the whitewater.

Abstract: A support apparatus and method is disclosed for supporting a syphon within a rotating cylinder. The apparatus includes a hub which is disposed within the rotating cylinder. The hub has a first and a second end, the hub defining a bore which extends between the ends of the hub for rotatably supporting the syphon. A first, second and third arm extend from the hub, each of the arms extending radially outwardly from the hub. Each of the arms has an inner and an outer extremity. The inner extremities of the arms are disposed adjacent to the hub. Also, the outer extremities of the arms are disposed adjacent to an internal surface of the rotating cylinder such that the arms and the hub support the syphon within the rotating cylinder while permitting rotation of the rotating cylinder relative to the syphon.

Abstract: A cleaning apparatus is disclosed for processing a moving surface. The cleaning apparatus includes a pad that is attached to a support structure, wherein the pad includes a plurality of pad apertures and the support structure includes a plurality of support structure apertures. A vacuum is provided proximate the plurality of support structure apertures for removing debris from a moving surface during use as well as for facilitating cooling of the pad during use.

Abstract: A cleaning apparatus is disclosed for processing a moving surface. The cleaning apparatus includes at least one pad that is coupled to a support shoe. The support shoe is attached to a first end of a plate element, and the plate element includes a second end that is adapted to be received by a doctor blade holder.

Abstract: A doctoring system is disclosed for a papermaking machine wherein the doctoring system includes a doctor blade and a fluid assist means. The doctor blade is coupled to a doctor blade holder, and is for cleaning a moving surface. The doctor blade holder is coupled to a doctor-back. The fluid assist means is for providing a fluid under positive pressure that is higher than atmospheric pressure and is directed in a direction generally along a direction of movement of the moving surface such that a negative pressure that is lower than atmospheric pressure develops in a negative pressure zone adjacent the moving surface and a following surface of the doctor blade during movement of the moving surface.