公开(公告)号：US3602631A

公开(公告)日：1971-08-31

申请号：US3602631D

申请日：1970-06-04

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： SHEPPARD HARRY R

IPC: H01F27/02

CPC classification number: H01F27/02 ,  Y10S428/925 ,  Y10S428/926 ,  Y10T428/12569 ,  Y10T428/12965 ,  Y10T428/12979

Abstract: Fluid filled electrical apparatus, such as transformers, suitable for underground or vault mounting. The electrical apparatus includes a laminated tank or casing, having at least three metallic layers, with the layer materials and thicknesses being selected to provide a good structural material having long service life in corrosion conducive environments, without undue economic penalty.

公开(公告)号：US3189513A

公开(公告)日：1965-06-15

申请号：US6860260

申请日：1960-11-14

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： CALDERWOOD ROBERT H ,  SHEPPARD HARRY R ,  RUFFING CHARLES R ,  MORELAND BEN A

IPC: B32B5/28 ,  C08J5/04 ,  C08L67/06 ,  H01B3/42 ,  H01B3/50

CPC classification number: C08J5/043 ,  B32B5/28 ,  C08J2367/06 ,  C08L67/06 ,  H01B3/425 ,  H01B3/50 ,  Y10S428/921 ,  Y10S521/907 ,  Y10T428/3162