Multiple operation switch lock
US4634822A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 15, 1985 |
| Grant date | Jan 6, 1987 |
| Priority date | — |
| Expiry date | Nov 15, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7718
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A key actuated tubular lock capable of a plurality of locking operations, each with switch operating capability, includes a substantially cylindrical outer barrel, key actuated locking spindle means, including a stationary sleeve and a rotatable sleeve, disposed within the barrel and a multiple operation switch operating assembly rigidly attached in a removable manner and adapted to be operated by rotation of the locking spindle through use of a proper key. The multiple operation assembly includes a switch subassembly, having a microswitch and a switch operating member associated therewith, positioned within a switch retention area in the rear end portion of the barrel in such a way that the operating member is contacted so as to turn the microswitch "off" when the locking spindle is in a first position and "on" when the spindle is key actuated to a second position. The various components of the multiple operation switch assembly are adapted to be assembled according to a plurality of arrangements so that they coact differently with each other and with the stationary sleeve, thereby providing the plurality of locking operations for the lock along with switching capability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.