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US 4,259,097 AGranted
Filtering means for arc suppressing gas system
AssigneeSiemens-Allis, Inc.
InventorsAmrut R. Patel, Donald M. Hansen
Life of this patent
Estimating the term…
Abstract
Arc suppressing gas in a high voltage circuit breaker system is collected, filtered and compressed. The compressed gas is passed through a series of oil and desiccant filters and returned to a high pressure vessel for storage. The oil and desiccant filtering system is combined in a single, separable casing including baffles and a check valve.
Claims3
In a system for pressurizing arc-quenching gas for an electrical current interrupter, a filtering assembly comprising:
- a tubular casing having first and second portions, said first and second portions having distal ends having inlet and outlet conduits respectively coupled thereto and open, confronting ends;
- a separable, rigid partition disposed transversely between said casing portions and receiving the open ends thereof in pressure-sealing relationship;
- flange means coupled to said confronting ends of said filter casing portions;
- tension means bridging said flange means for drawing said casing portions toward one another, and into pressure sealing contact with said partition;
- an oil filter means disposed in said first casing portion;
- a desiccant filter means disposed in said second casing portion;
- spring means disposed on either side of said partition for urging said oil filter and said desiccant filter against the distal ends of said first and second casing portions, respectively;
- a sleeve projecting from one side of said partition;
- check valve means disposed in said sleeve for maintaining a higher pressure in said second portion than in said first portion;
- and
- a second flange means slidably disposed over said sleeve and receiving said spring means for urging one of said filters against the distal end of its respective filter casing portion.
8 more elements
Dependencies are inferred from the claim text.