Recording unit
US4051349A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1976 |
| Grant date | Sep 27, 1977 |
| Priority date | — |
| Expiry date | Mar 18, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H27/06
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A cylinder lock wherein the insertion and rotation of a selected one of associated keys results in a projection of certain pins, mounted in a row parallel to the axis of the cylinder, radially beyond the cylinder surface in response to the irregularities of the key. The displaced pins effect a closing of contacts in a pattern to produce selected circuit functions. According to the invention the pins, when activated, deflect overlying respective parallel flexible wires extending transversely of the pin row. The deflected wires urge, via an insulated member, overlying movable contact reeds to engage overlying fixed contact members, so that circuits are closed as determined by the irregularities of the key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.