Abstract: An apparatus for forming a seal (40-44) along an edge portion of a flexible package (10) that is made from a sheet of flexible material (137) includes an elongated film folding member (102) and at least one heating and/or sealing member (104), the at least one heating and/or sealing member (104) extending along a first heat/seal axis parallel to a lengthwise axis (108) of the film folding member (102). A first engagement end (112) of the film folding member is adapted to contact a portion of the sheet of flexible material (137) during a sealing process and the at least one heating and/or sealing member (104) is adapted to heat the portion of the sheet of flexible material (137) during the sealing process such that the contact between the first engagement end (112) and the portion of the sheet of flexible material creates the seal along the edge portion of the flexible package (10).

Abstract: An apparatus includes a fuser assembly including a heat transfer member. The heat transfer member includes a substrate, first and second resistive traces disposed on the substrate, and a temperature sensor disposed on the substrate for sensing an end portion thereof. A controller is coupled to the fuser assembly and is operative to control a fusing temperature of the heat transfer member during a fusing operation when a temperature sensed by the temperature sensor falls outside a predetermined range by gradually changing a set-point temperature for at least one of the first and second resistive traces from an initial set-point temperature to an adjusted set-point temperature such that an amount of heat generated by the at least one of the first and second resistive traces is adjusted without changing a fusing speed of the fuser assembly.

Abstract: A split crimper for use in a crimping assembly for engaging and heat sealing overlapping layers of a packaging material includes a first crimper portion having a crimping surface and a second crimper portion that is secured to the first crimper portion to form a crimper. Portions of the first and second crimper portions cooperate to define an interior cavity, and a heating element is disposed completely within the interior cavity.

Abstract: A split crimper for use in a crimping assembly for engaging and heat sealing overlapping layers of a packaging material includes a first crimper portion having a crimping surface and a second crimper portion that is secured to the first crimper portion to form a crimper. Portions of the first and second crimper portions cooperate to define an interior cavity, and a heating element is disposed completely within the interior cavity.

Abstract: A dryer uses conduits to carry a heating medium, such as steam, to heat the outer surface of the dryer. The volume of steam is successfully reduced to non-explosive levels and the shell need not be designed to prevent an explosion. Conduits may be formed through the shell itself or grooves may be formed on the inner surface of the shell, with the conduits retained within the grooves. Also, the conduits can be placed against the inside surface of the dryer and a material, such as zinc, can be filled in about the conduits. The material serves to both retain the conduits in place and thermally couple the conduits to the dryer to assure efficient heat transfer between the conduits and dryer. These modifications relieve the dryer from the Unfired Pressure Vessel classification to the classification of a piping assembly under ASA code regulations. This results in savings in operation safety, installation cost and operating costs due to the absence of costly inspections.

Abstract: A split crimper for use in a crimping assembly for engaging and heat sealing overlapping layers of a packaging material includes a first crimper portion having a crimping surface and a second crimper portion that is secured to the first crimper portion to form a crimper. Portions of the first and second crimper portions cooperate to define an interior cavity, and a heating element is disposed completely within the interior cavity.

Abstract: A split crimper for use in a crimping assembly for engaging and heat sealing overlapping layers of a packaging material includes a first crimper portion having a crimping surface and a second crimper portion that is secured to the first crimper portion to form a crimper. Portions of the first and second crimper portions cooperate to define an interior cavity, and a heating element is disposed completely within the interior cavity.

Abstract: A heating element for a film-sealing apparatus comprises a heating wire segment formed of a first metal having a first reflectance to laser radiation of a predetermined wavelength. The heating element further comprises a first conductor lead comprising a wire having one end joined to a first end of the heating wire segment, and a second conductor lead comprising a wire having one end joined to a second end of the heating wire segment. The first and second conductor leads have a lower electrical resistance than the heating wire segment, and are formed of a second metal having a second reflectance to laser radiation of the predetermined wavelength, the second reflectance being higher than the first reflectance. Each of the first and second conductor leads is lap-welded to the respective end of the heating wire segment using laser radiation of the predetermined wavelength.

Abstract: The present invention relates to an induction heating coil comprising a litz cable which is wound into a spiral to form a bobbin, and means for cooling said cable indirectly. The litz cable is arranged to be cooled by means of an indirect cooling system that comprises a tube which is wound in an intermeshed fashion with the windings of the litz cable. The present invention relates also to a method on a paper or board machine or on a paper finishing machine, in which method at least one induction heating coil comprising a wound litz cable is used for heating a component, and said coil is cooled indirectly by a cooling medium.

Abstract: In an induction heating roller apparatus of the present invention, Rolling bearings 10 and a sliding bearings 14 are provided between drive shafts 2 of a roller body 1 and a support rod 9. When a trouble occurs in the rolling bearings 10, a rotational torque is transmitted from the drive shafts 2 through the rolling bearings 10 to the support rod 9. The sliding bearings 14 operate during the transmission of the rotational torque to the support rod 9, and the rolling bearings 10 slips relative to the support rod 9. The slip prevents that the support rod 9 co-rotates with the drive shafts.

Abstract: A method and apparatus for producing calendered paper by an on-line manufacturing system comprising at least a paper machine and a multi-nip calender. The method comprises following steps: removing water from a formed paper web by pressing, drying the pressed paper web by at least one dryer, calendering the dried web by the multi-nip calender, measuring a cross-machine moisture profile or a variable relative thereto, and altering the moisture of the web so that the moisture profile of the web in the cross-direction is even when the web enters the first nip of the calender.

Abstract: Apparatus for drying receiver sheets prior to such receiver sheets receiving electrophotographic images, including at least one set of preconditioning rotatable rollers with each preconditioning rotatable roller in the set touching an opposing preconditioning rotatable roller to form a nip, wherein at least one of the preconditioning rotatable rollers in the set is formed from zirconia ceramic or zirconia composite; and the apparatus heating at least one of the surfaces of the preconditioning rollers of the set to dry receiver sheets as each passes through the nip.

Abstract: A pouch laminator used for coating both sides of a small-sized sheet such as a photograph or identification card with a vinyl film is disclosed. Two folding guide plates are hinged to front and rear sides of the laminator body, respectively. A pair of bearing units are placed inside the laminator body for bearing the heating and molding rollers. A tension member detachably mounted to the top of each bearing unit for elastically holding the heating and molding rollers. A power supply unit having an elastic piece is placed aside each bearing unit. The elastic piece is brought into contact with a terminal provided on an associated end of each heating roller. A flat or embossing roller may be used as the molding roller. The embossing roller has a knurled rolling surface, thus embossing both sides of a coated sheet.

Abstract: A throttle valve is provided in each actuator of a calender roll controller with the throttle valve controlling an internal air orifice within each actuator to provide a substantially uniform air mass flow of either hot or cold air. Each throttle valve is controlled in response to the temperature of the air being delivered by the actuator such that a smaller orifice is provided for hot air than for cold air to provide substantially uniform air mass flow from each of the actuators and therefore substantially uniform air velocity to better control the temperatures of the longitudinal zones of a calender roll and better maintain boundaries between the zones. In addition to throttle valve control of the actuators, an air scoop concentric with a calender roll being controlled and spaced from the calender roll is provided to channel air from the actuators over the calender roll. The scoop comprises heat insulating material to prevent heat loss out the back of the scoop.