Concealed wiper system
US4673853A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1986 |
| Grant date | Jun 16, 1987 |
| Priority date | — |
| Expiry date | Jan 6, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S318/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A concealed wiper system comprises a wiper motor (1) having a mechanism to house a wiper arm in a retracted stop position by means of the reverse rotation of the wiper motor; PA0 a wiper actuation switch (3) with output capability which consists of a two-bit selection signal output from the selected switch positon; PA0 a wiper motor position detector (2) which detects data on wiper motor output shaft position, said detector output capability consisting of a two bit position signal determined by the position of said output shaft; PA0 a control means (4) consisting of a microcomputer which operates based upon said selection signals and position signals, said microcomputer also outputs both normal and reverse rotation signals; and PA0 a wiper motor drive circuit (6) which actuates said wiper motor in both normal and reverse rotation by means of signals from said control means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.