US 12,246,337 B2
Portable granular particle spreader
Charles William Henry, Mt. Joy, PA (US); and Keith Zimmerman, Leesport, PA (US)
Assigned to Charles William Henry, Mt. Joy, PA (US)
Filed by Charles William Henry, Mt. Joy, PA (US)
Filed on Nov. 10, 2021, as Appl. No. 17/454,264.
Prior Publication US 2023/0149956 A1, May 18, 2023
Int. Cl. B05B 7/14 (2006.01); A01C 7/02 (2006.01); A01C 15/02 (2006.01); A01C 15/04 (2006.01); A01M 9/00 (2006.01)
CPC B05B 7/1427 (2013.01) [A01C 7/02 (2013.01); A01C 15/02 (2013.01); A01C 15/04 (2013.01); A01M 9/0046 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A portable granular material spreader comprising:
a sealable enclosure having an outlet, the enclosure adapted to dispense the granular material to the enclosure outlet;
a pressurized air source for providing pressurized air;
a body having a chamber containing a rotatable distributor, the chamber further comprising:
a first passageway configured to deliver granular material from the enclosure outlet to the chamber;
a second passageway configured to deliver pressurized air to the chamber; and
a third passageway configured to discharge granular material entrained in pressurized air from the chamber; and
a conduit configured to deliver pressurized air from the pressurized air source to the second passageway and to the enclosure, air pressure delivered to the enclosure being greater than air pressure delivered to the second passageway;
wherein the distributor interface with the chamber is configured to substantially inhibit air flow between the first passageway, the second passageway, and the third passageway when the distributor is not rotating thereby inhibiting dispensing of granular material from the spreader, and to allow air flow between the first passageway, the second passageway, and the third passageway when rotating, allowing controlled discharge of the granular material from the spreader.