Alarm tag
US5969614A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 13, 1998 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Apr 13, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K9/18
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An alarm tag made of two parts, one of which is provided with a pin (13) attached to the one part (12) to be located on one side of the product (11) with the pin extending through the product into locking engagement with the other part (10) located on the opposite side of the product. A resonance chamber (29), mounted in the one part (12), having a central outlet (30) is provided for activating the alarm device. A cover (19) is mounted on the one part (12) over the resonance chamber, and includes a central portion in register with the outlet (30), and bars (36) extending radially from the central portion (35) to the periphery of the cover, the bars defining slots (37) between adjacent bars.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.