| US 7,547,852 B2 | ||
| Hydraulic scale for determining seeding density of a planter and method | ||
| Maximo Sallovitz, Santa Fe 1758 2nd Floor, 2000 Rosario, Santa Fe (Argentina) | ||
| Filed on Jul. 31, 2007, as Appl. No. 11/888,046. | ||
| Prior Publication US 2009/0031788 A1, Feb. 05, 2009 | ||
| Int. Cl. G01F 25/00 (2006.01); G01F 1/00 (2006.01); G01F 9/00 (2006.01); A01C 7/00 (2006.01); G01G 5/02 (2006.01) | ||
| U.S. Cl. 177—50 [73/1.36; 73/437; 73/861; 73/865.9; 111/200; 111/903; 221/2; 222/154; 222/158; 177/207] | 16 Claims |
| 1. A hydraulic scale for planter calibration, comprising:
a tube having a substantially closed bottom and a substantially open top;
indicia disposed on the tube, the indicia including at least one scale having a zero line;
a plurality of grooves disposed in the tube; and
a plurality of weighted rings, wherein each of the weighted rings is removably insertable into one of the plurality of grooves,
wherein the tube is configured to float substantially upright when positioned in a liquid such tat the zero line is substantially
aligned with a surface of the liquid when the tube is substantially empty, and wherein a non-zero line portion of the scale
is configured to align with the surface of the liquid when at least one of seeds and feed are placed within the tube.
|