Search International and National Patent Collections

1. (WO1998050260) WIPER MOTOR WITH CURRENT PROTECTION

Pub. No.:    WO/1998/050260    International Application No.:    PCT/US1998/009276
Publication Date: Fri Nov 13 00:59:59 CET 1998 International Filing Date: Thu May 07 01:59:59 CEST 1998
IPC: B60S 1/08
Applicants: ITT MANUFACTURING ENTERPRISES, INC.
Inventors: THORTON, Dennis, P.
Title: WIPER MOTOR WITH CURRENT PROTECTION
Abstract:
A wiper control system (19) including a current sensing device (28) is used in conjunction with a park position switch (30) to limit the current drawn by windshield wiper motor (22) whenever the system experiences restrictions in a park mode. The arrangement of components is effective for preventing damage to the motor (22) and motor control system (19) caused by excessive current draw whenever the motor (22) stalls, arcs, or experiences excessive loads. However, the current sensing portion (28) of the circuit is essentially disabled when the motor is in its normal operating mode thus preserving the fail save operation of the wipers.