Abstract: Tray inserts are disclosed for production printing systems. The tray inserts rest in ink trays and hold ink absorbing elements. The tray inserts and ink absorbing elements collect ink when printheads print outside of the margin of a printable medium, or otherwise discharge ink that does not contact the medium, such as during a cleaning cycle. When the ink absorbing elements become saturated and excess ink collects in the tray inserts, the tray inserts may be lifted vertically out of the ink trays and the ink absorbing elements may be removed from the tray inserts. The excess ink may then be dumped or otherwise cleaned from the tray inserts. In one embodiment, the tray inserts include drains which are used to empty the excess ink.

Abstract: A slag-removal system for a cutting table includes a pair of drive members arranged in spaced endless loops extending parallel to a longitudinal direction, with a slag plow connected between the drive members, each loop having a lower run and an upper run spaced above the lower run. The slag plow is carried along the lower runs as the drive members are rotated, such that the plow scrapes slag from the support surface beneath the table. As the drive members continue to rotate in the same direction, the plow is carried along the upper runs of the drive members back to its starting location for another slag-removal cycle.

Abstract: Disclosed is a structure having an outer shell and an interior, designed for preventing forced entry and providing protection from ballistic projectiles for the occupants, wherein the outer shell includes an outer layer formed of a metal or metal alloys, an intermediate layer formed of a relatively low-density material which aids in slowing incoming ballistic projectiles and absorbing their energy, and an inner layer of lower density than the outer layer but greater density than the intermediate layer, wherein the inner layer has elasticity and is designed to deform upon impact with a ballistic projectile. The structure may include other features, such as additional doors and exterior conduits to admit ducting, wiring or water tubing.

Abstract: A hockey puck for playing on a non-ice surface includes an outer ring within which is held a center element. The outer ring includes low friction sliding elements mounted therein. The center element is interchangeable to center elements of different weights, hardnesses and flexibility to vary the playing characteristics of the puck. Center elements with gaps between the center element and the outer ring or with additional weights or liquid are also provided.

Abstract: A hockey puck for street hockey or roller hockey has a cylindrical body with a hollow interior having liquid in the interior. Another embodiment provides a baffle in the interior of the hollow body to control the flow of the liquid within the cylindrical body. A further embodiment provides low friction slider members on the end faces of the puck. The slider members are arcuate shaped and are arranged around the periphery of the top and bottom surfaces of the puck. In a further embodiment, the slider members wrap around the edges of the puck onto the cylindrical side. The slider members can be used with or without the liquid containing interior space. Another embodiment provides a shock absorbing center portion in the form of a central core with flexible spokes extending between the core and an outer ring.