Portable soil sifter
FIG. 1 is a perspective view of the right side, front end, and top of the portable soil sifter with the soil sifter screen removed, it being understood that the broken lines show the position of the soil sifter screen for illustrative purposes only and do not form part of the design;
FIG. 2 is a right side elevation view of the portable soil sifter with the soil sifter screen and soil sifter screen swing in the rear reciprocating position, the left side being substantially the same as shown;
FIG. 3 is a right side elevation view of the portable soil sifter showing the soil sifter screen and soil sifter screen swing in the forward reciprocating position, the left side being substantially the same as shown;
FIG. 4 is a front end elevation view of the portable soil sifter;
FIG. 5 is a rear end elevation view of the portable soil sifter;
FIG. 6 is a bottom plan view of the portable soil sifter with the soil sifter screen in place; and,
FIG. 7 is a top plan view of the portable soil sifter with the soil sifter screen removed.
The cross-hatched shading denoting conventional screen material in FIGS. 6 and 7 is understood to cover the entire surface.
| D328016 | July 21, 1992 | Valerio |
| 333322 | December 1885 | Monell |
| 2773594 | December 1956 | Tyer |
| 2822922 | February 1958 | Trundle |
| 3402896 | September 1968 | Daman |
Type: Grant
Filed: Feb 16, 1993
Date of Patent: Sep 20, 1994
Inventor: Paul E. Salisbury (Bangor, ME)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Holly Baynham
Attorney: Daniel H. Kane
Application Number: 0/4,811
