Electro-mechanical interlock and module system for lawn mower or other electrical device
USRE36250E · kind E · reissue
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1993 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Nov 22, 2013 |
Classification
- Technology area (CPC —)General
Abstract
An electro-mechanical interlock and module system for an electrically powered device such as a cordless, electric lawn mower that includes a normally open interlock switch for controlling the enabling of the power circuit for the lawn mower. A key member is adapted for insertion into a specially configured opening in the mower housing to actuate and close the interlock switch. With the interlock switch closed, energization of the motor is controlled by a separate handle-mounted ON/OFF switch in a conventional manner. In addition, a modular assembly technique is disclosed which facilitates ease of manufacturing while assuring proper alignment between the various components of the interlock system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.