Sealing ring
US5851038A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1996 |
| Grant date | Dec 22, 1998 |
| Priority date | — |
| Expiry date | Dec 20, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/498
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sealing ring for an electric watthour meter apparatus has first and second housings mounted on opposed ends of an annular band. A fastener extends through a threaded aperture in an end wall of one housing into threaded engagement with an aperture in an end wall of the opposed housing to fixedly engage the ends of the sealing ring. A plurality of radially intersecting slots in one end of the fastener are alignable with apertures in one of a plurality of side walls of one of the housings for receiving a security device. Screwdriver receiving slots are formed in each of the first and second ends of the fasteners. An axial slot is formed in the second end of the fastener and alignable with apertures in the side walls of the other housing for receiving a security device. An enlarged head end on the fastener enables finger rotation of the fastener. The end walls have an elongated upper end forming a finger grip surface to facilitate movement of the first and second housings toward each other. Bendable mounting tabs extend from the first and second housings into slots in the annular band to fixedly mount the housings to the annular band. Alternately, a notched projection formed on a bot…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.