Burst firing device for firearm
US9410759B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 9, 2015 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | Apr 9, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41A19/44
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A burst firing trigger mechanism is provided. The mechanism includes a sear having a hamper engagement surface and a transfer mechanism. The present invention further includes a plurality of triggers. The plurality of triggers each includes a lever, a base pivotally attached to the sear by a pivot pin, and a trip finger extending from the base. Each of the trip fingers extends at a different angle relative to the lever. The present invention further includes a hammer biased by a spring away from the sear. The hammer includes a cocking notch. The burst firing trigger mechanism includes a cocked position and a plurality of fired positions. The cocked position includes the hammer engagement surface engaging the cocking notch and suspending the hammer towards the sear. Each of the plurality of fired positions includes the plurality of triggers pivoted so that at least one of the trip fingers engages the transfer mechanism thereby disengaging the hammer engagement surface from the cocking notch and thereby releasing the hammer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.