Electric panel board having an improved extruded base pan configuration
US4536823A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1981 |
| Grant date | Aug 20, 1985 |
| Priority date | — |
| Expiry date | Oct 27, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02B1/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved panel board construction is described, including an extruded insulative base pan which slidably engages at least one main-line bus bar and a neutral connector element and which has a plurality of electrical contact points. The base pan also prevents current flow through the base pan between any two of the contact points of the main-line bus bars. A protrusion extending from the base pan having a tortuously formed surface thereon prevents current flow through the base pan. The panel board is provided with interchangeable main-line lugs which may be used to directly contact the main-line bus bars or, alternatively, support a main-line circuit breaker between the lugs and the main-line bus bars. The base pan is symmetrically formed by an extrusion process so that it may be adaptable for use with a variety of panel board sizes simply by shearing the base pan to form the appropriate length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.