Abstract: An allergen trap is provided. The allergen trap includes a woven or nonwoven substrate having at least one strata. The trap is impregnated with or otherwise treated with a tacky adhesive by which allergens may be trapped. An example of an allergen is a dust mite. The tacky adhesive, in turn, may be treated with a miticide or activated carbon.

Abstract: This disclosure provides a newly developed strategy and particular options for differentiating pluripotent stem cells into cells of the hepatocyte lineage. Many of the protocols are based on a strategy in which the cells are first differentiated into early germ layer cells, then into hepatocyte precursors, and then into mature cells. The cells obtained have morphological features and phenotypic markers characteristic of human adult hepatocytes. They also show evidence of cytochrome p450 enzyme activity, validating their utility for commercial applications such as drug screening, or use in the manufacture of medicaments and medical devices for clinical therapy.

Abstract: A plug-in contact system for a plug-in type circuit breaker is disclosed. The movable contacts are easily engaged within the circuit breaker by the design of the contact support which includes a guiding protrusion, thus lowering the necessary insertion force. The stationary contacts provided on a fixed base, to which the circuit breaker may be plugged in, may be provided with modular contact supports. In addition, a shutter arrangement provides protection to the stationary contacts when a plug-in breaker is withdrawn from the fixed base.

Abstract: An interface for a plug-in circuit breaker for carrying auxiliary components is disclosed. The interface includes a substrate having a base surface secured to the circuit breaker and a mounting surface. A plurality of auxiliary contact blocks, each carrying eight auxiliary contacts, can be mounted on the mounting surface. A plurality of rating plugs, for avoiding insertion of a wrong breaker into a plug-in base, may further be mounted on the mounting surface. The interface may further include a plurality of tunnel-shaped passageways for routing auxiliary circuit wires and preventing their interference with moving parts of the breaker.

Abstract: An interface for a plug-in circuit breaker for carrying auxiliary components is disclosed. The interface includes a substrate having a base surface secured to the circuit breaker and a mounting surface. A plurality of auxiliary contact blocks, each carrying eight auxiliary contacts, can be mounted on the mounting surface. A plurality of rating plugs, for avoiding insertion of a wrong breaker into a plug-in base, may further be mounted on the mounting surface. The interface may further include a plurality of tunnel-shaped passageways for routing auxiliary circuit wires and preventing their interference with moving parts of the breaker.

Abstract: In an exemplary embodiment of the invention, a plug-in contact system for a plug-in type circuit breaker is provided. The movable contacts are easily engaged within the circuit breaker by the design of the contact support which includes a guiding protrusion, thus lowering the necessary insertion force. The stationary contacts provided on a fixed base, to which the circuit breaker may be plugged in, may be provided with modular contact supports. In addition, a shutter arrangement provides protection to the stationary contacts when a plug-in breaker is withdrawn from the fixed base.