Back to results
US 7,397,007 B2Granted
Assembly for controlling the force applied to a pantograph
AssigneeSiemens Power Transmission & Distribution, Inc.
InventorsJohn T. Fitzer, Urs Bischof, William Jeffrey Creech
Life of this patent
Estimating the term…
Abstract
A method and apparatus for controlling a force applied to a pantograph. A bidirectional snubber and a velocity controller are used to dampen the applied force. Linkages between a shaft and the bidirectional snubber and between the bidirectional snubber and the velocity controller are used to rotationally translate the applied force.
Claims10
An apparatus for controlling a mechanism operated contact assembly comprising;
- a rotatable main shaft operable between an open and a closed position;
- a bidirectional snubber member (BDS) coupled to the main shaft for controlling a force applied to a pantograph, the BDS comprising:
- a BDS plunger rod having a BDS plunger top and a BDS plunger bottom;
- a BDS plunger tube disposed around the BDS plunger rod and reciprocally movable along the BDS plunger rod between the BDS plunger top and the BDS plunger bottom;
- an opening spring disposed around the BDS plunger rod proximate the BDS plunger top and reciprocally movable along the BDS plunger rod responsive to movement of the BDS plunger rod;
- and
- a closing spring disposed around the BDS plunger rod proximate the BDS plunger bottom and reciprocally movable along the BDS plunger rod responsive to movement of the BDS plunger tube;
- and
- a first means for linking the rotatable main shaft with the BDS.
6 more elements
An apparatus for controlling a mechanism operated contact assembly comprising;
- a rotatable main shaft operable between an open and a closed position;
- a bidirectional snubber member (BDS) coupled to the main shaft for controlling a force applied to a pantograph, the BDS having an opening spring and a closing spring;
- and
- a first means for linking the rotatable main shaft with the BDS;
- wherein the first means for linking comprises a BDS lever arm;
- further comprising a first linkage rod for connecting the main shaft and the BDS lever arm;
- further comprising a BDS plunger rod coupled to the BDS;
- and wherein the lever arm rotates in an opposite direction to the rotational direction of the main shaft.
5 more elements
An apparatus for controlling a mechanism operated contact assembly comprising;
- a rotatable main shaft operable between an open and a closed position;
- a bidirectional snubber member (BDS) coupled to the main shaft for controlling a force applied to a pantograph, the BDS comprising:
- a BDS plunger rod having a BDS plunger top and a BDS plunger bottom;
- a BDS plunger tube disposed around the BDS plunger rod and reciprocally movable along the BDS plunger rod between the BDS plunger top and the BDS plunger bottom;
- an opening spring disposed around the BDS plunger rod proximate the BDS plunger top and reciprocally movable along the BDS plunger rod responsive to movement of the BDS plunger rod;
- and
- a closing spring disposed around the BDS plunger rod proximate the BDS plunger bottom and reciprocally movable along the BDS plunger rod responsive to movement of the BDS plunger tube;
- first means for linking the rotatable main shaft with the BDS;
- means for controlling rotational velocity;
- and
- second means for linking the BDS with the means for controlling rotational velocity, wherein the means for controlling rotational velocity controls the rotational velocity of the second means for linking.
8 more elements
Dependencies are inferred from the claim text.