Security seal for collars used to tension spring in garage door assemblies
US6378170B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2000 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Mar 29, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S411/91
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A security seal for a collar used for tensioning springs in garage door assemblies. A collar typically includes at least one set screw projecting outwardly and at least two winding holes. The security seal of the invention includes a generally longitudinal piece of flexible material having two opposite ends, the opposite ends being provided with a locking system for locking the opposite ends together in a permanent fashion. The seal also has at least one hollow cup adapted to receive the at least one set screw and at least two solid cups, each of the cups being adapted to fit with a corresponding winding hole. The hollow cup and the at least two solid cups are disposed on the security seal so that when the seal is locked above the collar, the hollow cup and the solid cups are in registration with the at least one set screw and the at least two winding holes respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.