The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2001
Filed:
May. 26, 1999
Joseph F. Pinkerton, Austin, TX (US);
David B. Clifton, Leander, TX (US);
Active Power, Inc., Austin, TX (US);
Abstract
An uninterruptible power supply (UPS) system supplies electric power to computers, medical apparatus or other critical loads when a primary power supply fails. The UPS system includes an electrical machine drivingly connected to a turbine which can be rotated by a motive fluid from a fluid supply. The electrical machine can be a dual purpose electrical machine (a motor/generator) or a two unit machine (one motor and one generator in a single housing or in separate housings) drivingly connected to a turbine which can be rotated by a motive fluid supply. When power is supplied from the primary power supply to the critical load, the electrical machine acts as a motor to rotate the turbine, and energy is stored by the turbine rotor in the form of rotational momentum. When power from the primary power supply fails, the rotational momentum of the turbine rotor initially rotates the electrical machine which acts as a generator to provide power to the critical load. If the power loss or failure is extended, the turbine motor is driven by combustion products, steam, compressed gases or other motive fluids to maintain the rotary motion of the turbine and the generator.