04675538 is referenced by 175 patents and cites 21 patents.

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 controllers (60) are also mounted on the circuit board and each connects the universal buss to an output terminal (64) whereby a plurality of different elements can be connected to the uninterruptible power supply and each element can have a voltage requirement which is different from the voltage requirements of the other elements. A signal control (96) is also included to visually, audibly and/or digitally indicate impending run-out of battery power.

Title
General purpose uninterruptible power supply
Application Number
6/869701
Publication Number
4675538
Application Date
June 2, 1986
Publication Date
June 23, 1987
Inventor
Barry M Epstein
7523 Cliffbrook, Dallas, 75240
TX, US
Agent
Terry M Gernstein
IPC
H02J 9/00
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