Cushion device for door closer assembly
US5517720A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1995 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Apr 13, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/132
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A door closer assembly provides a closing force to a door swingably mounted on a door jamb by a pair of arms pivotally attached to the door and the door frame. The door closer assembly has a housing and a spring for providing a closing force on the arm which closes the door when it is an open position. The improvement of the present invention includes a spring cushion device mounted on the housing of the door closer assembly for stopping the opening movement of the door as it reaches a predetermined angle of rotation. The cushion device provides a resilient counteracting force on the arm as the door reaches its predetermined angle of rotation which lessens the wear and tear exerted on the assembly by the opening force of the door.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.