Inventor

SIGMAN NATHAN T

US4 patents

⚠️ This page may combine multiple inventors who share the name “SIGMAN NATHAN T”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ABB INC

2 patents

US9214271B2Dec 15, 2015

Method of providing arc-resistant dry type transformer enclosure

ABB INC7 citations80

US8375566B2Feb 19, 2013

Method of providing arc-resistant dry type transformer enclosure

ABB INC5 citations69

BALLARD ROBERT C

2 patents

US8492662B2Jul 23, 2013

Arc-resistant dry type transformer enclosure having arc fault damper apparatus

BALLARD ROBERT C10 citations79

US8456838B2Jun 4, 2013

Arc-resistant dry type transformer enclosure having arc channels

BALLARD ROBERT C7 citations79