Firearm adapted for use in low light, illuminating rear sight, and method for aligning sights in low light environments
US7743546B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 30, 2006 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Oct 30, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41G1/32
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A rugged adjustable, optical alignment system is well suited for use in low light environments or at night. A rear sight includes a U-shaped array of, preferably, first second and third substantially cylindrical, transparent, tritium vials arranged such that the elongated cylindrical side surfaces of the vials are exposed to define an array of elongated illuminated segments. The array is preferably in the shape of a “U” having a first horizontally aligned vial positioned below a sight notch with a second vertical vial positioned above and to the left of the notch. A third vertical vial is positioned to the right of the sighting notch, above the first vial. In use, a front blade or front post also containing a tritium insert is aligned within the rear sight's U-shaped array of illuminated segments, thereby providing an intuitive sight picture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.