System and devices for adjustable door closure control
US12385308B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 2021 |
| Grant date | Aug 12, 2025 |
| Priority date | — |
| Expiry date | Feb 7, 2044 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/132
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Disclosed are systems and devices for controlling the closing of a door. A head unit is to be installed in a doorjamb, comprising a chamber filled at least in part with a shear thickening fluid. A piston is connected to a cap and configured to exert pressure against the shear thickening fluid in response to a force applied to the cap. The systems and devices provide an adjustable design that resists door slamming and aggressive closure, serving as a safety device as well as noise, damage and pet control around doors (preventing closure if desired). An install kit provides exact location, depth control and guide to place over the head unit to tap it into place with a hammer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.