US Patent Class 298
LAND VEHICLES: DUMPING



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Current as of: June, 1999
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  DF  CLASS NOTES
1 R  DF  MISCELLANEOUS
1 A  DF  .~ Auxiliary dump body mounted in nondumping body
1 B  DF  .~ Dump body includes flexible or movable bottom part to facilitate dumping
1 H  DF  .~ Means for heating dumping body
1 SG  DF  .~ Wheel splash guards movable responsive to body tilting
1 V  DF  .~ Vibrator means to facilitate removal of material
1 C  DF  .~ Motor driven carts having forwardly dumping body
1 T  DF  .~ Toy dump trucks
2  DF  HAND TRUCKS AND BARROWS
3  DF  .~ Single wheel
4  DF  SLEDS
5  DF  TWO-WHEEL
6  DF  .~ With cover or end gate control
7  DF  WITH LOAD-DELIVERING CHUTE
8 R  DF  PLURAL LOAD UNITS
8 H  DF  .~ Hopper type body
8 T  DF  .~ Multiple dumping vehicles connected in tandem
9  DF  ROTATING ABOUT VERTICAL AXIS AND TILTING
10  DF  ROTATING TO OVERTURN ABOUT FIXED AXIS
11  DF  ELEVATING AND TILTING
12  DF  SLIDING AND TILTING
13  DF  .~ Side delivery only
14  DF  .~ Operating mechanism
15  DF  .~.~ Vehicle-motion controlled
16  DF  .~.~ Vehicle-motor controlled
17 R  DF  TILTING
17.5  DF  .~ Tilting about plural or shifting fulcrums
17.6  DF  .~.~ Selectively tiltable in different directions
17.7  DF  .~.~.~ Side or end delivery
17.8  DF  .~.~.~ Progressive fulcrum points
18  DF  .~ Side delivery only
19 R  DF  .~ Operating mechanism
20 R  DF  .~.~ Vehicle-motion controlled
20 A  DF  .~.~.~ Motion effecting means mounted on fifth wheel
22 R  DF  .~.~ Fluid-pressure operators
22 AE  DF  .~.~.~ Fluid pressure actuator associated with fifth wheel mechanism
22 C  DF  .~.~.~ Control means for hydraulic tilting mechanism
22 F  DF  .~.~.~ Tilting mechanism includes flexible operator means (e.g., cable)
22 J  DF  .~.~.~ Jack-knife linkage actuated by hydraulic means
22 P  DF  .~.~.~ Plural, simultaneously operated fluid cylinder means
22 A  DF  .~.~.~ Rotary piston type
22 B  DF  .~.~.~ Cam means in cooperation with fluid pressure means
22 D  DF  .~.~.~ Pivotally connected (non-jack-knife type) linkage actuated to effect tilting
21 R  DF  .~.~ Vehicle-motor controlled
21 V  DF  .~.~.~ Tilting mechanism includes flexible operator means (e.g., cable)
19 B  DF  .~.~ Booster device for initial tilting movement
19 V  DF  .~.~ Tilting mechanism includes flexible operator means, (e.g., cable)
23 R  DF  .~ With cover or endgate control
23 MD  DF  .~.~ Motor operated endgate opening means
23 M  DF  .~.~ Motor operated endgate latch means
23 S  DF  .~.~ Combined latch and endgate opening means
23 A  DF  .~.~ Automatic (non-motor) endgate latch mechanism
23 B  DF  .~.~.~ Including cam actuator means
23 F  DF  .~.~.~ Including flexible operating member
23 D  DF  .~.~ Automatic, positive, non-motor endgate opening means
23 DF  DF  .~.~.~ Including flexible operating member
23 C  DF  .~.~ Dump body covers, control means therefor
23 TT  DF  .~.~ Miscellaneous tilting trucks
17 B  DF  .~ Brace or prop to support tilted load body
17 S  DF  .~ Vehicle includes means to stabilize or level body while dumping
17 SG  DF  .~ Ground engaging
17 T  DF  .~ Tractor dumping attachments
24  DF  HOPPER TYPE
25  DF  .~ Pivoted sections
26  DF  .~ Tilting bottom
27  DF  .~ Bottom opening
28  DF  .~.~ Removable bottom boards
29  DF  .~.~ Hinged doors
30  DF  .~.~.~ Transversely hinged only
31  DF  .~.~.~ Longitudinally hinged only
32  DF  .~.~.~.~ Parallel swinging
33  DF  .~.~.~.~ Oppositely swinging
34  DF  .~.~.~.~.~ Inwardly only
35 R  DF  .~.~.~.~.~ Outwardly only
36  DF  .~.~.~.~.~.~ Vertically movable
37  DF  .~.~.~.~.~.~ Closing equalizers
35 M  DF  .~.~.~.~.~.~ Motor operated doors
38  DF  CATCHES