Patent · US Expired

Traffic signal transfer switch

US7250875B2 · kind B2 · utility

12Cited by
44References
19Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 21, 2005
Grant dateJul 31, 2007
Priority date
Expiry dateJan 15, 2026

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG08G1/095
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A transfer switch configured particularly for use with traffic signal controllers, to enable a traffic signal controller to be powered by a portable electrical generator, when utility line power is unavailable. A housing, configured to be mounted either on the surface of a traffic signal controller cabinet, or recessed into an opening of the cabinet, so as to be flush to the surface thereof, is provided. The housing is configured to be substantially weatherproof without requiring the use of gaskets.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.