DAVID ROBERT HARRIS
Pilots at Bean Rd, Sterling Junction, MA
License number
Massachusetts A2545214
Issued Date
Sep 2016
Expiration Date
Sep 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
28 Bean Rd #B, Sterling Junction, MA 01564
Professional information
Personal Powder Dispenser
US Patent:
2010019, Aug 5, 2010
Filed:
Mar 8, 2010
Appl. No.:
12/660915
Inventors:
Stanley J. Poreda - Bristol RI, US
David R. Harris - Sterling MA, US
David R. Harris - Sterling MA, US
International Classification:
G01F 11/10
US Classification:
222365
Abstract:
A powder dispenser includes: a casing enclosing a powder reservoir and having a dispensing port; a powder ram slidably mounted within the casing between an initial position, an intermediate position and a final position, the powder ram including a dispensing end that moves through the powder reservoir as the powder ram moves from its initial position to its intermediate position; a metering chamber formed as the powder ram reaches its intermediate position, the metering chamber receiving powder as the powder ram moves from its initial position to its intermediate position; a powder barrier having a closed position and an open position, while in its closed position the powder barrier preventing the escape of powder through the dispensing port, the powder barrier moving from its closed position to its open position as the powder ram moves from its intermediate position to its final position, the powder ram forcing powder contained in the metering chamber out of the dispenser and through the dispensing port as the powder ram moves from its intermediate position to its final position.