Plug for counterbalancing mechanism, door assembly including the same and method of installing associated thereto
US6988527B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2003 |
| Grant date | Jan 24, 2006 |
| Priority date | — |
| Expiry date | Sep 28, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/106
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A plug for operatively connecting a torsion spring onto a corresponding component of a counterbalancing mechanism of a door assembly. The plug includes a connecting portion for removably connecting the plug onto the corresponding component, a substantially cylindrical collar insertable into an end portion of the torsion spring, an anchoring portion disposed on a bottom section of the collar for cooperating with a coil of the end portion of the torsion spring so as to pivotally anchor the collar onto the end portion of the torsion spring, and a clip projecting from a top section of the collar, and being disposed at a location on the collar substantially diametrically opposite from where the anchoring portion is disposed on the bottom section of the collar. The clip is shaped and sized for clasping past an end coil of the torsion spring and operatively engaging with the same so as to securely mount the plug onto the end portion of the torsion spring in a clip-like manner, thereby enabling the plug to be mounted onto the torsion spring quickly and easily.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.