Abstract: A card guide unit for use in guiding and positioning circuit boards in a card cage, which guide unit is integral, having front and rear cross members that are integral with machined elongated card guides, having machined spaces between the card guides, and which guide units are inter-connectable to side walls of a card cage, providing identical precisioned alignment between circuit boards in the card guides so that precise electrical connections can be made between the circuit board and electrical connectors on the back plane.
Abstract: A filter system (10) comprising a filter medium (11) for filtering contaminants from a process fluid, having a filtration side on which contaminants collect and a filtrate side from which filtrate flows; a counter-flow generator (20) located on the filtrate side that directs a localized stream of counter-flow fluid (23) from the filtrate side to the filtration side of the filter medium (11) to thereby dislodge the contaminants from the filtration side of the filter medium (11), wherein the localized stream (23) traverses a substantial proportion of the filter medium (11). The filter system (10) optionally further comprises a clearing-flow generator (30) or like means located on the filtration side of the filter medium (11) which clears contaminants from the filter medium (11).
Abstract: A method and apparatus for replacing old, in-ground hydraulic elevator lift cylinders in which a portable tower is erected within the elevator hoistway and a shoring sleeve of larger diameter than the old cylinder is secured to a head plate slidably mounted for vertical movement on the tower and facing downwardly. After loosening the hoistway floor and subsoil surrounding the old cylinder, a drive mechanism such as a winch or hydraulic jack is actuated to lower the shoring sleeve into the ground to surround the old cylinder. The head plate is then attached to the old cylinder, and the drive mechanism is actuated to lift the head plate and cylinder upwardly until the cylinder is raised completely out of the ground. The old cylinder is discarded, and a new cylinder is attached to the head plate and lowered into the area surrounded by the shoring sleeve.
Abstract: A container having a container body, a thermic module at one end of the body, and a closure at the other end of the body initiates an internal exothermic (or, alternatively, endothermic) chemical reaction to heat its contents when a user actuates the thermic module. A plastic thermic module body is spin-welded to a plastic container body by rotating one relative to and in contact with the other. The container body has multiple layers, including an inner layer such as a so-called oxygen barrier layer that inhibits oxidation and spoilage of the contents, and spin-welding the container body to the module body seals the otherwise-exposed oxygen barrier layer against air or moisture intrusion. The container includes a rotatable cover adhered to the container end over the closure with heat-sensitive adhesive that prevents a user from accessing the contents until a certain temperature is reached.
September 25, 2000
Date of Patent:
March 5, 2002
James A. Scudder, James L. Berntsen, William B. Farnham, Dan Gibbs, Ann T. Davern, Jerine J. Rosato, Michael S. Slocum
Abstract: A gas purification apparatus has a housing with an inlet end having an inlet port for gas supply to an interior chamber, and an opposite, outlet end having an outlet port for exit of purified gas from the chamber. The housing is of generally cylindrical shape with a central axis, and the inlet and outlet ports are offset from the central axis towards a lower portion of the housing. A purification medium fills at least the majority of the chamber. The internal wall of the chamber is cylindrical along part of the length of the housing extending from the outlet end, and has a rounded or part-spherical inlet portion extending from the inlet port to the cylindrical part of the internal wall.
January 26, 2001
Date of Patent:
February 26, 2002
Jeffrey J. Spiegelman, Peter K. Shogren