US Patent:
20180195831, Jul 12, 2018
Inventors:
Alexander Robert DiBlasio - Jamison PA, US
Ben Noji - Landenberg PA, US
Ross James Jutras - Newark DE, US
Stephen J. Hague - Newark DE, US
Assignee:
Umarex USA, Inc. - Fort Smith AR
International Classification:
F41B 11/723
F16K 1/12
F16K 31/44
Abstract:
A valve system utilizes a main valve body with a restricted diameter conduit communicating between a propulsion chamber and rear cavity and a smaller venting valve mechanically actuated to open the rear cavity to atmosphere, thereby causing the main valve body to open to pass pressurized air in the propulsion chamber to an orifice to power a projectile.