Patent · US Expired

Point machine for movable frogs

US7168663B2 · kind B2 · utility

2Cited by
9References
20Claims
0Family size

Assignees

Inventor

Key dates

Filing dateJun 16, 2003
Grant dateJan 30, 2007
Priority date
Expiry dateJun 16, 2023

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB61L5/04
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

In a switch actuator for movable frogs (1), comprising at least one cylinder piston unit (5) having a defined preset piston stroke, the cylinder piston unit (5) is connected with bearings (6) capable of being displaced in the axial direction of the piston stroke, which bearings are connected with a stationary substructure for the adjustment of a defined center position of the piston stroke and the driver for the movable frog (1). The driver for the movable frog (1) is coupled with the cylinder piston unit (5) with first stops (9) displaceable in the axial direction being interposed.

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