IP Library Granted Patent US 9,677,227
Granted Patent B2
US 9,677,227 · App. 14/460,228 · Granted Jun 13, 2017

Automatic feedback systems and methods for railway nipper machines

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Quick Facts
Patent No.
US 9,677,227
App. No.
14/460,228
Granted
Jun 13, 2017
Kind
B2
Abstract

A railway nipper machine is provided that includes a nipper frame having a pair of nipper hooks for performing a nipping operation, and a position feedback device having a central control module configured for controlling the nipping operation based on a depth signal and a time signal. Further included in the nipper machine is a depth sensor connected to the position feedback device for generating the depth signal relative to a nipper actuator connected to the nipper frame, wherein the depth sensor transmits the depth signal to the position feedback device. A timer is provided for generating the time signal, and the nipper machine is actuated by the nipper actuator in response to a determination value generated by the position feedback device based on the depth signal and the time signal.

Claims (59)

1. A railway nipper machine, comprising:

a nipper frame having a pair of nipper hooks for performing a nipping operation;

a position feedback device having a central control module configured for controlling the nipping operation based on a depth signal and a time signal, wherein the central control module includes a depth comparison module configured for determining whether a predetermined depth relative to the nipper actuator has been reached within a predetermined time period based on the time signal and the depth signal;

a depth sensor connected to the position feedback device for generating the depth signal relative to a nipper actuator connected to the nipper frame, the depth sensor transmitting the depth signal to the position feedback device;

a timer that generates the time signal; and

wherein the nipper machine is actuated by the nipper actuator in response to a determination value generated by the position feedback device based on the depth signal and the time signal.

2. The railway nipper machine of claim 1 , wherein the central control module includes an interface module configured for providing an interface between the central control module and the depth sensor.

3. The railway nipper machine of claim 1 , wherein the central control module includes a depth measuring module configured for receiving the depth signal from the depth sensor via an interface module.

4. The railway nipper machine of claim 3 , wherein the timer supplies the time signal to the depth measuring module, and the time signal includes at least one of a start or end time, a current time, and an elapsed time.

5. The railway nipper machine of claim 1 , wherein the central control module includes an agitation initiation module configured for starting an agitation sequence of the actuator for a predetermined duration.

6. The railway nipper machine of claim 5 , wherein the agitation sequence includes a series of orchestrated actuations designed to create a digging motion through ballast for facilitating a downward movement of the nipper machine.

7. The railway nipper machine of claim 5 , wherein the agitation sequence is triggered when a downward travel velocity of the nipper actuator is reduced by a predetermined amount before reaching a predetermined depth.

8. The railway nipper machine of claim 1 , wherein the central control module includes a velocity measuring module configured for receiving the depth signal and the time signal, and the velocity measure module calculates a velocity of the nipper actuator based on the depth and time signals.

9. The railway nipper machine of claim 1 , wherein the central control module includes a velocity comparison module that determines whether a velocity of the nipper actuator has been reduced by a predetermined amount, and a predetermined depth relative to the nipper actuator has not been reached within a predetermined time period.

10. A method for performing a nipping operation of a railway nipper machine, comprising:

performing a nipping operation using a nipper frame having a pair of nipper hooks;

controlling the nipping operation based on a depth signal and a time signal;

generating the depth signal relative to a nipper actuator connected to the nipper frame using a depth sensor;

transmitting the depth signal to a position feedback device;

generating the time signal using a timer; and

actuating the nipper machine using the nipper actuator in response to a determination value generated based on the depth signal and the time signal; and

determining whether a predetermined depth relative to the nipper actuator has been reached within a predetermined time period based on the time signal and the depth signal.

11. The method of claim 10 , further comprising controlling operation of the nipper actuator via an interface between the depth sensor and associated components of the nipper machine.

12. The method of claim 10 , further comprising receiving the depth signal from the depth sensor for indicating an amount of depth of the nipper hooks in ballast.

13. The method of claim 12 , further comprising supplying the time signal including at least one of a start or end time, a current time, and an elapsed time.

14. The method of claim 10 , further comprising starting an agitation sequence of the actuator for a predetermined duration.

15. The method of claim 14 , wherein the agitation sequence includes a series of orchestrated actuations designed to create a digging motion through ballast for facilitating a downward movement of the nipper machine.

16. The method of claim 14 , wherein the agitation sequence is triggered when a downward travel velocity of the nipper actuator is reduced by a predetermined amount before reaching a predetermined depth.

17. The method of claim 10 , further comprising receiving the depth signal and the time signal, and calculating a velocity of the nipper actuator based on the depth and time signals.

18. The method of claim 10 , further comprising determining whether a velocity of the nipper actuator has been reduced by a predetermined amount, and a predetermined depth relative to the nipper actuator has not been reached within a predetermined time period.

19. A railway nipper machine, comprising:

a nipper frame having a pair of nipper hooks for performing a nipping operation;

a position feedback device having a central control module configured for controlling the nipping operation based on a depth signal and a time signal, the central control module including an agitation initiation module configured for starting an agitation sequence of the actuator for a predetermined duration, wherein the agitation sequence is triggered when a downward travel velocity of the nipper actuator is reduced by a predetermined amount before reaching a predetermined depth;

a depth sensor connected to the position feedback device for generating the depth signal relative to a nipper actuator connected to the nipper frame, the depth sensor transmitting the depth signal to the position feedback device;

a timer that generates the time signal; and

wherein the nipper machine is actuated by the nipper actuator in response to a determination value generated by the position feedback device based on the depth signal and the time signal.

20. A railway nipper machine, comprising:

a nipper frame having a pair of nipper hooks for performing a nipping operation;

a position feedback device having a central control module configured for controlling the nipping operation based on a depth signal and a time signal, the central control module including a velocity comparison module that determines whether a velocity of the nipper actuator has been reduced by a predetermined amount, and a predetermined depth relative to the nipper actuator has not been reached within a predetermined time period;

a depth sensor connected to the position feedback device for generating the depth signal relative to a nipper actuator connected to the nipper frame, the depth sensor transmitting the depth signal to the position feedback device;

a timer that generates the time signal; and

wherein the nipper machine is actuated by the nipper actuator in response to a determination value generated by the position feedback device based on the depth signal and the time signal.

21. A method for performing a nipping operation of a railway nipper machine, comprising:

performing a nipping operation using a nipper frame having a pair of nipper hooks;

controlling the nipping operation based on a depth signal and a time signal;

generating the depth signal relative to a nipper actuator connected to the nipper frame using a depth sensor;

transmitting the depth signal to the position feedback device;

generating the time signal using a timer;

actuating the nipper machine using the nipper actuator in response to a determination value generated based on the depth signal and the time signal;

starting an agitation sequence of the actuator for a predetermined duration; and

receiving the depth signal and the time signal, and calculating a velocity of the nipper actuator based on the depth and time signals.

22. A method for performing a nipping operation of a railway nipper machine, comprising:

performing a nipping operation using a nipper frame having a pair of nipper hooks;

controlling the nipping operation based on a depth signal and a time signal;

generating the depth signal relative to a nipper actuator connected to the nipper frame using a depth sensor;

transmitting the depth signal to the position feedback device;

generating the time signal using a timer; and

actuating the nipper machine using the nipper actuator in response to a determination value generated based on the depth signal and the time signal; and

determining whether a velocity of the nipper actuator has been reduced by a predetermined amount, and a predetermined depth relative to the nipper actuator has not been reached within a predetermined time period.

Assignments (4)
PATENT RELEASE AND REASSIGNMENT Recorded Apr 5, 2021
From: ARES CAPITAL CORPORATION
To: NORDCO INC.
Reel/Frame 056681/0962 →
CORRECTIVE ASSIGNMENT TO REMOVE APPLICATION NUMBER 29496543 PREVIOUSLY RECORDED AT REEL: 036515 FRAME: 0775. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY INTEREST. Recorded Oct 20, 2015
From: NORDCO INC.
To: ARES CAPITAL CORPORATION, AS AGENT
Reel/Frame 036899/0213 →
SECURITY INTEREST Recorded Sep 1, 2015
From: NORDCO, INC.
To: ARES CAPITAL CORPORATION, AS AGENT
Reel/Frame 036515/0775 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 14, 2014
From: PIER, MICHAEL THOMAS; DICKERSON, JONATHAN DALE
To: NORDCO INC.
Reel/Frame 033540/0778 →