Oil seal for a door closing device
US6412785B1 · kind B1 · utility
0Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 8, 2000 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Sep 8, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/132
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A door closing device. The device includes a main body, a shaft, an annular cover mounted in the main body, and a planar gasket. Two ends of the shaft are rotatably supported in the annular cover by a collar. The planar gasket is mounted around the shaft and between the collar and a peripheral edge defining a central annular hole of the annular cover. The planar gasket includes an inner diameter approximately the same as an outer diameter of the shaft and an outer diameter approximately the same as an inner diameter of the annular cover. The planar gasket further includes two opposed planar surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.