Keyless access and engine control system
US4809199A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1986 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Aug 18, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C9/33
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A keyless marine access and engine control system. The system is caused to change from a dormant state to an enabled state when a sequence of actuation signals entered through a keypad matches data representing either one of two access sequences stored in the system's memory. When the system is in its enabled state, the system responds only to signals representing a keypad actuation exceeding a first predetermined time interval. These signals are used to crank, choke, and stop a marine vehicle engine. The secondary access sequence can be changed by a person who knows either the primary access sequence or the secondary access sequence, while the primary access sequence can be changed only by a person having knowledge of the present primary access sequence. In order to reprogram either access sequence, a programming button must be actuated for a predetermined time interval exceeding the first time interval. The system can be used with either a single or dual engine installation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.