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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Y.S. Securities Limited Patents
Assignee:
Y.S. Securities Limited
Address:
Leeds, GB2
No. of patents:
5
Patents:












Patent Number Title Of Patent Date Issued
4827088 Electrical ring main unit May 2, 1989
A three-phase electrical ring main unit comprising a lower chamber module (30) having a wall structure formed from insulating resin material; three input contacts (35), one for each phase, mounted within the lower chamber; three lower switching contacts (37), each mounted within the lowe
4794362 Alternating current power circuit and fuse therefor December 27, 1988
A fuse for an alternating current power circuit. The fuse comprises an input terminal (4), a first contact (5) electrically connected to the input terminal, an output terminal (9) and a second contact (8) electrically connected to the output terminal. A fusible element (11) electrica
4742323 Fuse for an alternating current power circuit May 3, 1988
A fuse for an alternating current power circuit in the medium voltage (3.3 kV to 38 kV) range. The fuse comprises a sealed chamber and a first electrode (41) is mounted within the chamber, the first electrode having a substantially circular periphery (42) and being electrically connected
4692733 Fuse for an alternating current power circuit September 8, 1987
A fuse for an alternating current power circuit in the medium voltage (3.3 kV to 38 kV) range. The fuse comprises a sealed chamber and a first electrode (41) is mounted within the chamber, the first electrode having a substantially circular periphery (42) and being electrically connected
4633047 Isolator switch with interlock December 30, 1986
An electrical isolator has an insulated housing with input and output conductors (1, 2) therein. A spring contact (6) is mounted within the housing for movement between open and closed positions. An insulating shroud (15) fully shields that part of the bridging contact accessible thr

 
 
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