Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1998-05-01
1999-06-01
Crosland, Donnie L.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340588, 188 111W, 188 111R, 116208, 374 7, B60Q 100, F16D 6600
Patent
active
059091711
ABSTRACT:
A brake lining wear indicator utilizes a temperature sensor assembly embedded in a brake lining of a drum brake assembly. The temperature sensor assembly includes two temperature sensors with a first temperature sensor located at a first distance X from the wear surface of the brake lining and a second temperature sensor located at a second distance X+d from the wear surface. A timing device measures the time period for the first temperature sensor to reach a first predetermined temperature and measures the time period for the second temperature sensor to reach a second predetermined temperature. The remaining useful thickness of the brake lining is determined based on the ratio of the respective time periods. Thus, the indicator provides a time-temperature based determination of when the brake linings should be replaced. This determination is easily monitored during the operation of the vehicle and can be made without requiring a physical measurement or visual inspection of the thickness of the brake lining on each brake shoe.
REFERENCES:
patent: 1957051 (1934-05-01), Norton
patent: 2494269 (1950-01-01), Sparkes
patent: 3674114 (1972-07-01), Howard
patent: 3825891 (1974-07-01), Kinast
patent: 3975706 (1976-08-01), Kato
patent: 4020454 (1977-04-01), Malonee
patent: 4204190 (1980-05-01), Wiley
patent: 4520661 (1985-06-01), Tamai et al.
patent: 4646001 (1987-02-01), Baldwin et al.
patent: 4649370 (1987-03-01), Thomason
patent: 4658936 (1987-04-01), Moseley
patent: 4674326 (1987-06-01), Reinecke
patent: 4790606 (1988-12-01), Reinecke
patent: 4824260 (1989-04-01), Novotny et al.
patent: 4964679 (1990-10-01), Rath
patent: 4971179 (1990-11-01), Gebhardt
patent: 5079947 (1992-01-01), Feldmann et al.
patent: 5372221 (1994-12-01), Jalbert
patent: 5419415 (1995-05-01), Lamb
patent: 5550743 (1996-08-01), Kyrtsos
patent: 5559286 (1996-09-01), White
patent: 5637794 (1997-06-01), Hanisko
patent: 5651431 (1997-07-01), Kyrtsos
patent: 5668529 (1997-09-01), Kyrtsos
Crosland Donnie L.
Meritor Heavy Vehicle Systems, L L C
LandOfFree
Temperature sensing brake lining wear indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Temperature sensing brake lining wear indicator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature sensing brake lining wear indicator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-957542