1
Barry M Epstein: General purpose uninterruptible power supply. Terry M Gernstein, June 23, 1987: US04675538 (173 worldwide citation)

An uninterruptible power supply (10) includes a backup power supply (50) mounted on a circuit board type base (30) and connected to a universal buss (40) which is also mounted on the base to be in parallel with a main power supply which is also connected to the universal buss. A plurality of voltage ...


2
Epstein Barry M: A general purpose uninterruptible power supply. Epstein Barry M, GERNSTEIN Terry M, December 17, 1987: WO/1987/007782

An uninterruptible power supply (10) includes a backup power supply (50) mounted on a circuit board type base (30) and connected to a universal buss (40) which is also mounted on the base to be in parallel with a main power supply which is also connected to the universal buss. A plurality of voltage ...



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