Point machine and switch with snap-action and method of operating said point machine
US10850752B2 · kind B2 · utility
0Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2015 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Aug 29, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L5/107
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A switch for a point machine, point machine having said switch, and a method for operating said point machine. The switch opening and closing a circuit providing current to the motor of the point machine. The switch having an elastic element, such as a spring, to create “snap-action” to open and close the circuit. Operation of the motor compressing the spring to open the circuit and cut-off power to the motor when the point machine has completed movement of a point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.