Double turnout rotary guideway switch
US4970962A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1988 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Jun 27, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B7/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A double turnout rotary guideway switch is provided with an elongated structural frame member having guidebeam, electric rail and tire path structure on each of two sides of the switch compatible with the guidebeam, electric rail and tire path structure of the guideway. Two elongated beams form the sides of the frame and, with cross connected end beams, operating as the principal structural members for the frame. A curved beam extends from one of the elongated side beams inwardly and to one of the end beams. Opposite sides of the curved beam provide respective surfaces for a left turnout tire path on one of the two sides of the switch and a right turnout tire path the other side of the switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.