Return cartridge for door handles
US11035148B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 6, 2019 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | Jul 1, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05C21/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A handle return assembly removably attachable to an escutcheon. The removably attachable assembly may include a housing to be attached to the escutcheon and a hub rotatably disposed within the housing for operably connecting an operating handle to a drive spindle. A torsion spring may bias the hub toward an initial position. At least one stopper plate may interact with the cartridge housing for limiting rotational motion of the hub relative to the housing. Selectively positioning the stopper plate and the spring relative to the housing provides the assembly with the ability to provide a right-handed operation and a left-handed operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.