Classifying – separating – and assorting solids – Plural – diverse separating operations – Sifting and stratifying
Reexamination Certificate
2007-01-19
2008-10-21
Rodriguez, Joseph C (Department: 3653)
Classifying, separating, and assorting solids
Plural, diverse separating operations
Sifting and stratifying
C209S013000, C209S268000, C209S427000, C209S493000, C209S500000, C209S506000
Reexamination Certificate
active
07438188
ABSTRACT:
An aggregate material separating device includes a frame with a shaker mechanism. A trough is disposed on the frame and coupled to the shaker mechanism by a shaker spring. A hopper is disposed at an end of the trough and can receive a load of aggregate material. A hopper wash line is disposed adjacent the loading hopper to irrigate the aggregate material in the hopper forming a slurry. A brush and a backwash spigot form a standing wave in the trough to slow slurry movement from through the trough in order to provide additional settling time for the slurry. A mineral separation bed is disposed along a bottom and side of the trough. The mineral separation bed has a plurality of substantially longitudinal riffles that can be sized, shaped and oriented to capture minerals of a predetermined specific gravity from the slurry as the shaker shakes the trough.
REFERENCES:
patent: 563046 (1896-06-01), Mait
patent: 1035930 (1912-08-01), Willma
patent: 1041892 (1912-10-01), Sieling
patent: 1915602 (1933-06-01), Goody
patent: 1947035 (1934-02-01), Covington
patent: 2001756 (1935-05-01), Woock
patent: 2006596 (1935-07-01), Mendenhall
patent: 2014249 (1935-09-01), Fletcher
patent: 2128918 (1938-09-01), Dickerson
patent: 2269307 (1942-01-01), Dickerson
patent: 2457018 (1948-12-01), Wantling
patent: 2588088 (1952-03-01), Cover
patent: 2825462 (1958-03-01), Hackney et al.
patent: 3207306 (1965-09-01), Butler
patent: 3255885 (1966-06-01), Burls
patent: 3605767 (1971-09-01), Ettlinger et al.
patent: 4199441 (1980-04-01), Ross
patent: 4206046 (1980-06-01), Haight
patent: 4525270 (1985-06-01), McCann
patent: 4642180 (1987-02-01), Kaufman
patent: D302018 (1989-07-01), Messenger et al.
patent: 5108584 (1992-04-01), Brosseuk
patent: 5421461 (1995-06-01), Ruzic
patent: 5896997 (1999-04-01), Tanner
patent: 6216367 (2001-04-01), Tubbs
patent: 7093719 (2006-08-01), Roper
Rodriguez Joseph C
Thorpe North & Western LLP
LandOfFree
Device for use in placer mining operations and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for use in placer mining operations and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for use in placer mining operations and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4008993