Door frame closing and securing apparatus
US6675536B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2002 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Jul 31, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/0841
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The apparatus is used for closing and securing a door in its frame. A movable wedge is supported in a slot in the frame. A closing mechanism is employed for closing the door and a second mechanism is employed for moving the wedge into a slot formed in the edge of the door when the door is closed. A shape memory wire is used in conjunction with the closing mechanism for allowing the closing mechanism to close the door. A second shape memory wire is used in conjunction with the second mechanism for allowing the second mechanism to move the wedge from the frame slot into the door slot when the door is closed for securing the door to the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.