Abstract: Automatically determining pricing for at least one unit of content that can be selected and licensed or purchased over a network. Pricing is determined based on an initial price, and at least one of the following: a reviewer rating, content activity, or a customer offer price. Each of these factors may be weighted. The initial price may be a minimum price, a maximum price, a suggested price from a content owner, a pre-calculated market price, or other initial price. Content activity generally reflects user behaviors related to a content item, such as selecting a content item from a search results list, saving it as a favorite, returning to view it, placing it in a virtual shopping cart, or licensing it. Content activity combined with reviewer rating and/or offer price, indicates a “snappyness” score. A new price is dynamically calculated based on the initial price and snappyness score.

Abstract: Automatically determining pricing for at least one unit of content that can be selected and licensed or purchased over a network. Pricing is determined based on an initial price, and at least one of the following: a reviewer rating, content activity, or a customer offer price. Each of these factors may be weighted. The initial price may be a minimum price, a maximum price, a suggested price from a content owner, a pre-calculated market price, or other initial price. Content activity generally reflects user behaviors related to a content item, such as selecting a content item from a search results list, saving it as a favorite, returning to view it, placing it in a virtual shopping cart, or licensing it. Content activity combined with reviewer rating and/or offer price, indicates a “snappyness” score. A new price is dynamically calculated based on the initial price and snappyness score.

Abstract: An electromagnetic actuator for a circuit breaker having a pair of relatively moveable contacts is disclosed. The actuator includes primary actuator coupled to at least one of the contacts by a link mechanism operable to provide closing and holding forces to the contacts of the circuit breaker and a secondary, faster acting actuator which, on tripping thereof, provides sufficient force to at least initiate opening of the contacts by the configuration of the link mechanism. The secondary actuator includes a stored energy latch which has a permanent magnet flux circuit for providing a holding force and a coil connected to receive a trigger signal to overcome the permanent magnet flux to trip the latch.

Abstract: An auto-recloser circuit-breaker has three vacuum interrupters driven from a single bistable magnetic actuator which is powered by a first lithium sulphur dioxide battery under control of an electronic protection relay which is powered by a second lithium sulphur dioxide battery. The drive mechanism, actuator and relay are designed to minimize current consumed by the batteries so that the recloser may be self-powered for its full life by these batteries independent of the power line in which it is connected.