Double fluke security sealing ring for watt-hour meters
US6855005B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 9, 2001 |
| Grant date | Feb 15, 2005 |
| Priority date | — |
| Expiry date | Jul 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R11/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A double fluke security sealing ring for use in polyphase and single phase watt-hour meter includes a series of elements such as, a ring-type circular band made of stainless steel that has, at one end, annular rims folded at 90° along itself and two slotted flanges also folded at 90° forming the double fluke, and at the other end, two parallel and equidistant slots. It is not possible to revert the hooking action and effect once the sealing wire is installed due to the reduced internal space within the two flange slots. Therefore, the security sealing ring is red-flagged when the security sealing ring has been violated with the intention of manually moving the record pointers in order to alter the meter consumption lecture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.