Abstract: An isolated dual power source system for isolating a first power source of a vehicle, connected to an engine starter, from a second power source of the vehicle which has an electrical circuit for distributing electrical power among the consumers, includes first and second switches for selectively connecting the first and second power sources to the electrical circuit, respectively. The system may include a controller that independently and operatively connects to the first and second switches to control operation thereof for selective and respective isolation from the electrical circuit. A third switch connecting the second power source to the starter may be used to selectively provide power thereto and bypass the first power source to start the engine.

Abstract: An isolated dual power source system for isolating a first power source of a vehicle, connected to an engine starter, from a second power source of the vehicle which has an electrical circuit for distributing electrical power among the consumers, includes first and second switches for selectively connecting the first and second power sources to the electrical circuit, respectively. The system may include a controller that independently and operatively connects to the first and second switches to control operation thereof for selective and respective isolation from the electrical circuit. A third switch connecting the second power source to the starter may be used to selectively provide power thereto and bypass the first power source to start the engine.

Abstract: The variable-flow feeder (1) of the invention is meant to be fitted in particular onto a milk bottle and comprises at the end of its nipple (2) a slit (3) with two arms (3a, 3b) subtending between them an angle, and is characterized in that the angle subtended by the two arms of the slit (3) is an obtuse angle .GAMMA. between 165.degree. and 95.degree. of which the vertex lies on the feeder axis, in that the lengths l.sub.1 and l.sub.2 (l.sub.1 >l.sub.2) of the slit arms form such a ratio l.sub.1 /l.sub.2 that it falls between a value of 1 and .delta., the value of .delta. increasing from 1 to 10, preferably from 1 to 4.5, when the angle .GAMMA. decreases from 165.degree. to 95.degree., said arms of the slit (3) being determined by cutting lines which do not remove material and issuing at their non-adjacent ends into a hole (4b, 4c) of small cross-section.