US PATENT SUBCLASS 172 / 613
PLURAL RELATIVELY MOVABLE TOOLS

Current as of: June, 1999
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172 /   HD   EARTH WORKING

613PLURAL RELATIVELY MOVABLE TOOLS {14}
614  DF  .~> Tool pivots on pivoted member when member moves {1}
618  DF  .~> Tools assume different angularity for opposite draft
619  DF  .~> Plural tool groups relatively vertically movable because of operation {9}
634  DF  .~> Parallel, pivotally adjusted tool bars {2}
640  DF  .~> Tool group pivotally adjustable about horizontal axis
641  DF  .~> Beam spreader of the pivoted yoke type
642  DF  .~> Pair of tools cooperate to move earth to or from plant row
643  DF  .~> Spring formed tool or standard
644  DF  .~> Tools longitudinally adjustable to and from transverse alignment
645  DF  .~> Tools relatively adjustable horizontally without causing vertical displacement {7}
657  DF  .~> Relatively movable because of operation {1}
659  DF  .~> Adjustable about spaced horizontal axes {1}
661  DF  .~> Vertically translatable tool
662  DF  .~> Tool movable to non-use position

DEFINITION

Classification: 172/613

(under the class definition) Apparatus comprising a plurality of earth working elements or portions of a plurality of earth working elements which are movably related to each other while remaining in the apparatus.

(1) Note. The distinction between an assemblage of parts comprising one earth working element and an assemblage of parts comprising a plurality of earth working elements is often difficult to make. Generally when parts closely cooperate and are mutually interconnected so as to be supported from the same standard they may comprise a single earth working element, but parts on separate standards even though connected to a single frame and each performing a like function may be separate earth working elements. Common usage and the prior placement of the art must also be considered.

(2) Note. This definition includes relatively adjustable tools of the type where there is provided a frame or support having a plurality of holes or notches, etc., to mount a plurality of tools in selective positions, the individual tools necessarily having to be removed to be engaged in another hole for adjustment purposes. For this simple-type adjustment the tools are considered to remain in the apparatus when being adjusted. However, apparatus of the type

in which the relative position of a plurality of tools is changed by a substantial disassembly and assembly operation, such as frame sections carrying tools being rearranged, is excluded from this definition. See subclasses 245+.

(3) Note. A plurality of earth working elements individually loosely mounted, or spring mounted, or merely themselves being springs (such as spring teeth) come under this definition since the elements will move relatively to each other as the apparatus is drawn over the ground.

(4) Note. See the definition of "adjustable" in the class definition. A plurality of earth working elements merely clamped in position so that the position of each may be changed by loosening the clamps and retightening are not included under this definition (613). See search notes below for such devices.

SEE OR SEARCH THIS CLASS, SUBCLASS: 48+, for plural driven tools.

63+, for a device comprising a driven tool and a nondriven tool.

133+, for diverse tools.

204+, for implements alternating for right or left hand operation.

382, for multiple-level tools for operating at different depths in the soil.

488+, for tools carried on a wheeled frame having a single actuator for lifting plural relatively movable tools.

518+, for rolling, rotating, or orbitally moving tools.

685, for plural relatively fixed tools.