Hatch closure assembly
US4833830A · kind A · utility
0Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1987 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Dec 1, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B41/005
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hatch closure assembly having high security includes a hatch locking spring and lever which is actuated by an adjustable screw. The actuating screw can be turned only by a special wrench.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.