Abstract: A projectile system includes an enclosure, first and second propellants and first and second projectiles. The first and second propellants are disposed within the enclosure. The first projectile is disposed within the enclosure between the first propellant and a first end of the enclosure, and is operable to exit the enclosure via the first end in response to detonation of the first charge. The second projectile is disposed within the enclosure between the second propellant and a second end of the enclosure, and is operable to exit the enclosure via the second end in response to the detonation of the second propellant.

Abstract: A system is operable without repair for a predetermined maintenance-free operating period (MFOP). The system includes a first portion that is operable to perform a function, a second portion, and a control portion coupled to the first and second portions. The control portion is operable to cause the second portion to perform the function for a remainder of the MFOP if the first portion fails during the MFOP. For example, a system on board a submarine that comes in to port every ninety days can have a ninety-day MFOP. Therefore, crewmembers do not need to repair the system while the submarine is at sea on a mission. This servicing strategy may reduce costs by allowing one to eliminate training crew to repair the sonar system, preparing and printing repair documentation for the crew, and carrying this documentation, spare parts, and repair equipment on board the submarine.

Abstract: A method of offering advertising services to a client for advertising a client website on the Internet comprises the steps of enabling a website-related services partner to cause an opt-in object to be displayed on a partner or reseller affiliate website through which the client may choose to establish an Internet advertising services account without leaving the affiliate website, receiving corresponding client information from the affiliate, and using the received client information to establish the Internet advertising services account. The invention also covers a related computer system for performing the method. Generated revenue is preferably shared among the advertising services provider, the partner, and the affiliate.