Underwater camera housing having sealed pivotable shutter actuator and method
US6574435B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2001 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Dec 21, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An underwater housing has a shell having inside and outside surfaces and an opening extending between the surfaces. An actuator is disposed in the opening. The actuator has an outer member disposed external to the opening and an inner member disposed internal to the opening. The actuator has a torsion bar joining the members to the shell. The members are pivotable about an axis through the torsion bar, between an initial orientation and a pivoted orientation. The torsion bar is relaxed when the members are in the initial orientation and tensioned when the members are in the pivoted orientation. A facing is united with the shell and the actuator. The facing seals the opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.