Electronic winch monitoring system

Details Electronic winch monitoring system Electronic winch monitoring system

2007-04-10

2007-04-10

Rivera, William A. (Department: 3654)

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

C254S377000

Reexamination Certificate

active

11381122

ABSTRACT:
An electronic winch monitoring system for a winch having a fixed-ratio gearbox with input and output shafts, a winch drum connected to the output shaft, and an auxiliary brake connected to the output shaft activated by reducing the pressure in a brake release hydraulic circuit. The system comprises an input shaft speed sensor, an output shaft speed sensor, and an electronic control unit having a monitoring section and a brake control section. The monitoring section receives the speed signals, processes them to produce a calculated ratio of actual input to output shaft speeds, and produces a fault indication signal when the value of the difference between the calculated speed ratio and the fixed ratio exceeds a predetermined value. The brake control section, upon receiving the fault signal, reduces the hydraulic pressure in the brake circuit using a nonlinear pressure-time profile to engage the auxiliary brake and stop the winch drum.

REFERENCES:
patent: 2683020 (1954-07-01), Nickle
patent: 3042375 (1962-07-01), Fahey et al.
patent: 3572482 (1971-03-01), Kalpas et al.
patent: 3674119 (1972-07-01), Worstell et al.
patent: 3685290 (1972-08-01), Krusche
patent: 3850380 (1974-11-01), Kranefeld
patent: 4093939 (1978-06-01), Mitchell
patent: 4175727 (1979-11-01), Clarke
patent: 4187681 (1980-02-01), Johnson
patent: 4364453 (1982-12-01), Serina
patent: 4448394 (1984-05-01), LeMoine
patent: 4493479 (1985-01-01), Clark
patent: 4565007 (1986-01-01), Issenmann
patent: 4636962 (1987-01-01), Broyden et al.
patent: 4854547 (1989-08-01), Oliphant
patent: 4905849 (1990-03-01), Couli
patent: 5117992 (1992-06-01), Simkus et al.
patent: 5133465 (1992-07-01), Kalan
patent: 5189350 (1993-02-01), Mallett
patent: 5350076 (1994-09-01), Kalan
patent: 5557526 (1996-09-01), Anderson
patent: 5659468 (1997-08-01), Duss
patent: 5671912 (1997-09-01), Langford et al.
patent: 5692733 (1997-12-01), Hiramatsu
patent: 5875281 (1999-02-01), Thexton et al.
patent: 5992655 (1999-11-01), Greenberg et al.
patent: 6079576 (2000-06-01), Bosler et al.
patent: 6092789 (2000-07-01), Christopher et al.
patent: 6097165 (2000-08-01), Herron
patent: 6135421 (2000-10-01), Bartelme et al.
patent: 6269635 (2001-08-01), Zuehlke
patent: 6371447 (2002-04-01), Imanishi et al.
patent: 6540208 (2003-04-01), Pecot et al.
patent: 6644629 (2003-11-01), Higashi et al.
patent: 6648303 (2003-11-01), Nishimoto et al.
patent: 6739677 (2004-05-01), Tazoe et al.
patent: 6966544 (2005-11-01), McCormick et al.
patent: 7063306 (2006-06-01), Sanders et al.
patent: 0387399 (1990-09-01), None
patent: 1 371 600 (2003-12-01), None
patent: 10059688 (1998-03-01), None
patent: 10157977 (1998-06-01), None
patent: 11079680 (1999-03-01), None
patent: 11240689 (1999-09-01), None
David Taylor, The great North Sea crane swap . . . , Business and Management Practices and Cranes Today, Apr. 2003, p. 42, ISSN: 0307-0018. Copyright 2003 Gale Group, Inc. and Copyright 2003 Wilmington Publishing Ltd., USA.

Affiliated with

Also associated with

Rating

Electronic winch monitoring system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic winch monitoring system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic winch monitoring system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3743699