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Machine translation
1. (WO2004094209) METHOD OF MONITORING THE POWER SPRING OF A SPRING BRAKE ACTUATOR
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/094209    International Application No.:    PCT/US2004/008970
Publication Date: 04.11.2004 International Filing Date: 24.03.2004
Chapter 2 Demand Filed:    11.11.2004    
IPC:
B60T 17/08 (2006.01), F16D 65/14 (2006.01)
Applicants: INDIAN HEAD INDUSTRIES, INC. [US/US]; 8530 Cliff Cameron Drive, Charlotte, NC 28277 (US) (For All Designated States Except US).
PLANTAN, Ronald, S. [US/US]; (US) (For US Only)
Inventors: PLANTAN, Ronald, S.; (US)
Agent: SCOTT, Raymond, E.; Howard & Howard Attorneys, P.C., 39400 Woodward Avenue, Suite 101, Bloomfield Hills, MI 48304-5151 (US).
SAMUELS, Lucy, Alice; Gill Jennings & Every, Broadgate House, 7 Eldon Street, London EC2M 7LH (GB)
Priority Data:
10/403,693 31.03.2003 US
Title (EN) METHOD OF MONITORING THE POWER SPRING OF A SPRING BRAKE ACTUATOR
(FR) PROCEDE DE SURVEILLANCE DU RESSORT MOTEUR D'UN CYLINDRE DE FREIN A RESSORT
Abstract: front page image
(EN)A method of monitoring the condition of a power spring of a pneumatic spring brake actuator of a vehicle by comparing the stroke of the push rod during normal braking and by actuating the parking brake, wherein a defective power spring is indicated when the difference in the push rod stroke falls below a predetermined minimum. The brake actuator may also include a sensor determining the push rod stroke and signal a defective power spring.
(FR)L'invention concerne un procédé permettant de surveiller l'état du ressort-moteur dans le cylindre de frein à ressort pneumatique d'un véhicule, en comparant la course de la tige de poussée pendant le freinage normal, et un actionnant le frein de stationnement. L'état défectueux d'un ressort-moteur est indiqué lorsque la différence de la course de la tige de poussée est inférieure à un minimum prédéterminé. Le cylindre de frein peut en outre comprendre un capteur qui détecte la course de la tige de poussée et signale un ressort-moteur défectueux.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)