US Patent Class 171
UNEARTHING PLANTS OR BURIED OBJECTS



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Current as of: June, 1999
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  DF  CLASS NOTES
1  DF  METHODS OF RECOVERING BURIED OBJECTS
2  DF  PLURAL ALTERNATELY USABLE UNEARTHING UNITS
3  DF  STABILIZING COLTER OR FIN
4  DF  WITH ADDITIONAL EARTH OR PLANT ROLLING IMPLEMENT
5  DF  WITH VERTICAL CUTTER FOR VEGETATION
6  DF  WITH EARTH MARKER OR TRAILING EARTH CONDITIONER
7  DF  PERIODIC DUMPING IN PILES
8  DF  DRIVE TRIGGERED BY DESIRED OBJECT
9  DF  SUPPORT OVERLOAD RELEASE AND RESET; DRIVE OVERLOAD RELIEF; OR AUTOMATIC CONTROL
10  DF  WITH PRELIMINARY REMOVAL OR UNDESIRED EARTH MATERIAL
11  DF  REMOVABLE OR ALTERNATE COLLECTION RECEPTACLES
12  DF  WITH APPARATUS CLEANER IN NONRECOVERY ZONE OF UNEARTHING UNIT
13  DF  WITH TOOTHED MOVING STRIPPER OR PICK-OFF FOR UNDESIRED OBJECT
14  DF  RECOVERED OBJECT PASSES THROUGH SEPARATOR INTERSTICES
15  DF  .~ Assorting by size
16  DF  RAILROAD BALLAST REMOVAL AND ASSORTING OR SEPARATING
17  DF  SEPARATION OR ORIENTATION BY FLUID CURRENT OR SUSPENSION
18  DF  SEPARATION BY PHYSICAL CHARACTERISTICS
19  DF  WITH RAKE OR LATERAL DEFLECTOR FOR GROUND CONTACTING RECOVERED OBJECTS
20  DF  WITH MANUAL OPERATION STATION (E.G., TOPPING, SEPARATION INSPECTION)
21  DF  HOLDING AND SEVERING PLANT PORTION IN SITU
22  DF  .~ Plural level cutters
23  DF  WITH SELECTIVE DELIVERY TO ALTERNATE LOCATIONS (E.G., BY-PASS)
24  DF  WITH COMMINUTING OR MULTIPLE CUTTING OF RECOVERED PLANT PART
25  DF  WITH CLEANING OF RECOVERED OBJECT BY BRUSHING OR WIPING
26  DF  WITH ABOVE-GROUND MEANS FOR DETACHMENT OF PLANT PART
27  DF  .~ Detachment by pulling, beating, shaking or crushing
28  DF  .~.~ By opposed rotary gripping elements
29  DF  .~ Separate successive topping stations
30  DF  .~ By non-driven rotatable cutter (e.g., rolling)
31  DF  .~ Conveyer feed to or from cutter
32  DF  .~.~ Cutter positioned by gauge
33  DF  .~.~ With driven gauge
34  DF  .~.~ With gauge
35  DF  .~.~.~ Moved into transverse horizontal position for cutting
36  DF  .~.~ Held by conveyer during cutting
37  DF  .~.~.~ With lateral disposal of cuttings
38  DF  .~.~.~ Opposed belt conveyers
39  DF  .~.~.~ Wheel-like conveyer
40  DF  .~ With deflector or conveyer for detached plant part
41  DF  .~ Moving topping cutter
42  DF  .~.~ Rotary or endless
43  DF  COMBINED OR CONVERTIBLE
44  DF  POWER MEANS TO SHIFT UNEARTHING UNIT PART
45  DF  TRACTOR POWERED TRAILING UNEARTHING UNIT
46  DF  UNEARTHING UNIT DETACHABLE FROM VEHICLE CHASSIS
47  DF  UNEARTHING UNIT LATERALLY SHIFTABLE ON SUPPORT
48  DF  SEPARATE DRAFT CONNECTIONS TO UNEARTHING UNIT AND UNEARTHING UNIT SUPPORT
49  DF  MOVED OBJECT VOID FILLING OR EARTH HOLD DOWN
50  DF  EXTRACTOR
51  DF  .~ With agitator for extractor or extractor-carried object
52  DF  .~ With movable stripper
53  DF  .~ Plant impaling or snagging (e.g., roots or tops)
54  DF  .~.~ Retractible to strip
55  DF  .~ Opposed plant engagers
56  DF  .~.~ Jaw means relatively movably mounted on carrier means
57  DF  .~.~ Screw
58  DF  .~.~ Disc or roller
59  DF  .~.~ Claw type
60  DF  .~.~ One a belt or belt carrier member
61  DF  .~.~.~ Opposed belts or belt carried members
62  DF  .~ With digger or root cutter
63  DF  STONE GATHERING AND/OR UNEARTHING BY IMPELLING ABOVE-GROUND PLANT OR OBJECT PORTION
64  DF  .~ With underground stalk or root severing
65  DF  .~ Impeller inclined to line of draft
66  DF  GROUND ENGAGING CHAIN SEPARATORS
67  DF  WITH PRELIMINARY DEFLECTOR FOR SURFACE MATERIAL
68  DF  .~ Driven deflector
69  DF  .~ Moving deflector
70  DF  TRANSVERSELY MOVING SINGLE TINE ROW
71  DF  PLOW OR BLADE CONTINGUOUS TO VIBRATING SEPARATOR
72  DF  .~ With resilient support or drive connection
73  DF  .~ Transversely curved or inclined separator
74  DF  .~ With side walls or guides
75  DF  .~ Plural separator sets of with articulated elements
76  DF  .~.~ Relatively moving interdigitated sets
77  DF  .~ Non-circular rolling support for a separator
78  DF  .~ Ground supported trailing separator
79  DF  .~ Supported on longitudinally spaced links
80  DF  .~ Swinging about longitudinal or inclined axis
81  DF  .~ Shifting laterally
82  DF  UNEARTHING UNIT ROCKING OR FULCRUMED ON GROUND
83  DF  LEADING PLOW OR CUTTER WITH CONTIGUOUS, FIXED INCLINED SEPARATOR
84  DF  SEPARATING DIGGER (E.G., VERTICAL COLLECTING TINES)
85  DF  .~ Moving impeller with cooperating circular arcuate guide
86  DF  .~ Movable on supporting frame (e.g., pivoted)
87  DF  .~.~ With ejector on digger or digger carrier
88  DF  .~.~ Plural cooperating moving diggers
89  DF  .~.~ Moving diggers with intercepting moving stripper or conveyer
90  DF  .~.~ Moving digger with intercepting stripper or chute
91  DF  .~.~ Moving digger carrier with relatively moving digger
92  DF  .~.~ Separator or collector within annular or endless digger
93  DF  .~.~ Rolling or coaxial with traction wheel
94  DF  .~.~ Carried by endless flexible member
95  DF  .~.~ Rotary
96  DF  .~.~.~ Conical digger portion
97  DF  .~.~.~ Horizontal axis (e.g., longitudinal axis)
98  DF  .~.~.~.~ Transverse axis
99  DF  .~.~ Cyclic
100  DF  .~.~ Pivoted about ground wheel axle
101  DF  .~ Separating digger intercepted by moving conveyer or impeller
102  DF  .~ Laterally deflecting diggers
103  DF  .~ Spaced, inclined shares or guides (pairs)
104  DF  .~ Inclined lifting surfaces
105  DF  .~.~ Tines (e.g., forks)
106  DF  .~.~ Vertically stepped transverse elements
107  DF  .~ Tooth or tine arrangements or details
108  DF  TRACTION WHEEL DRIVE DETAILS FOR UNEARTHING UNIT PART
109  DF  UNEARTHING UNIT OR VEHICULAR BREAK-FRAME
110  DF  DIGGER AND MOVING CONVEYER UNIT ADJUSTABLE RELATIVE TO CHASSIS
111  DF  EARTH REMOVAL AND SEPARATION
112  DF  .~ Rolling screen or sieve (e.g., wheel or belt)
113  DF  .~ Spiral conveyer for excavator or separator
114  DF  .~ With impeller or clod breaker for excavator or separator
115  DF  .~.~ Transversely moving rotary member
116  DF  .~.~ Rotary
117  DF  .~.~ Endless belt type impeller or breaker
118  DF  .~.~.~ Opposed endless members
119  DF  .~.~.~ Excavator or separator within confines of endless impeller or breakers
120  DF  .~.~.~ Endless impeller or breaker above excavator or separator
121  DF  .~.~ Impeller or breaker driven through cyclic path
122  DF  .~ Clod pulverizer outside separating zone
123  DF  .~ Conveyer disposed below separator
124  DF  .~ Moving conveyer, digger or separator
125  DF  .~.~ Rolling nonseparating elevator or conveyer
126  DF  .~.~ Moving open separator or separating conveyer
127  DF  .~.~.~ Compound motion (e.g., with agitator)
128  DF  .~.~.~ Rotary cylinder with radially extending separating elements
129  DF  .~.~.~ Rotary drum type
130  DF  .~.~.~ Plural, successive, endless belt type
131  DF  .~.~.~ Plural successive separators, one a belt
132  DF  .~.~.~ Moving screen or grate (e.g., shaker)
133  DF  .~.~.~ Relatively moving separator elements (e.g., rollers)
134  DF  .~.~ Moving digger and separate separator
135  DF  .~ Separator formed in collector receptacle
136  DF  .~ Digger and fixedly interconnected contiguous separator
137  DF  WITH PROTECTIVE GUARD OR CASING
138  DF  WITH MATERIAL REDIRECTING CONVEYER OR CHUTE
139  DF  UNEARTHING UNIT FIXED ON VERTICALLY SHIFTABLE VEHICLE FRAME
140  DF  UNEARTHING UNIT WITH GAUGE RUNNER OR WHEEL
141  DF  LIFTING OR TILTING MEANS FOR UNEARTHING APPARATUS
142  DF  DRIVE DETAILS (E.G., CLUTCH OR GEARING)
143  DF  FRAMES AND/OR WHEELED CHASSIS
144  DF  MISCELLANEOUS (E.G., HOPPER OR COLLECTOR)
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DIGEST
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DIG 1  DD  Peanut digger