Abstract: An apparatus for fixing the position of a metal end cap on a filter element includes a filter support, an inductive heater, and a drive system for moving the heater relative to the filter support. Preferably, the apparatus also includes a second inductive heater. Where two heaters are used, the drive system simultaneously moves the first and second inductive heaters in substantially opposite directions, using a control shaft extending between first and second support pillars. Each end of the control shaft is threaded, and the threading on the second end is formed in an opposite direction to the threading on the first end. Each of the heaters is threadably connected to the control shaft. A motor is provided for rotating the control shaft. A method of forming a filter cartridge, using the disclosed apparatus, is another aspect of the invention.

Abstract: An apparatus for placing an end cap on a cylindrical workpiece includes a stationary support base, a guide member, a push bar, and an applicator device. The guide member is affixed to the stationary support base, and includes a ramp, disposed at an angle to the horizontal. The push bar is slidably movable in relation to the support base. The applicator includes a back plate which is operatively pivotally attached to the push bar at a pivot connection. The lower part of the applicator has a post attached thereto, which rides along the ramp of the guide member. Linear inward movement of the push bar, from a first position to a second position thereof, moves the applicator post up the ramp of the guide member, pivoting the applicator around the pivot connection, and causing the back plate to move from a substantially horizontal orientation to a substantially vertical orientation thereof.