# US 2014/0190376 A1 · Conduit system for a pneumatic distribution system of an agricultural implement > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190376 A1 - Document ID: US20140190376A1 - Status: Published application - Kind: A1 - Application number: 13/737,276 - Filed: 2013-01-09 - Published: 2014-07-10 - Earliest claimed: 2013-01-09 - Assignees: CNH America LLC - Applicants: Cnh America LLC - Inventors: Chad M. Johnson; Marvin A. Prickel; Grant T. MacDonald - Web page: https://patentgrep.com/patent/US20140190376A1 ## CPC - A01C 7/082: {Ducts, distribution pipes or details thereof for pneumatic seeders} - A01C 7/081: {Seeders depositing seeds in rows using pneumatic means} - A01C 7/084: {Pneumatic distribution heads for seeders} - A01C: PLANTING; SOWING; FERTILISING (parts, details or accessories of agricultural machines or implements, in general A01B51/00 - A01B75/00) ## Abstract A pneumatic distribution system for an agricultural implement includes an inductor box having output ports and row units configured to receive an agricultural product and airflow from the output ports. A conduit system extends between the output ports of the inductor box and the row units. The conduit system is configured to direct the agricultural product and the airflow from each output port to a respective row unit. The conduit system includes a first conduit assembly extending between a first output port and a first row unit. The conduit system also includes a second conduit assembly extending between a second output port and a second row unit. A first average diameter of the first conduit assembly is smaller than a second average diameter of the second conduit assembly by at least approximately one percent. ## Claims ### Claim 1 A pneumatic distribution system for an agricultural implement comprising: an inductor box having a plurality of output ports, wherein the inductor box is configured to receive an agricultural product and an airflow, to combine the agricultural product with the airflow, and to direct the agricultural product and the airflow through the plurality of output ports; a plurality of row units each configured to receive the agricultural product and the airflow, and to deposit the agricultural product into soil; and a conduit system extending between the plurality of output ports of the inductor box and the plurality of row units, the conduit system configured to direct the agricultural product and the airflow from each output port of the plurality of output ports to a respective row unit of the plurality of row units; wherein the conduit system comprises a first conduit assembly extending between a first output port of the plurality of output ports and a first row unit of the plurality of row units, and a second conduit assembly extending between a second output port of the plurality of output ports and a second row unit of the plurality of row units, and wherein a first average diameter of the first conduit assembly is smaller than a second average diameter of the second conduit assembly by at least approximately one percent, and a first length of the first conduit assembly is smaller than a second length of the second conduit assembly. ### Claim 2 (depends on 1) The pneumatic distribution system of claim 1, wherein the first conduit assembly comprises a first hose coupled to the first output port of the inductor box, the second conduit assembly comprises a second hose coupled to the second output port of the inductor box, and a first inner diameter of the first hose is substantially equal to a second inner diameter of the second hose. ### Claim 3 (depends on 1) The pneumatic distribution system of claim 1, wherein the first conduit assembly comprises a hose having an inlet coupled to the first output port of the inductor box and an outlet coupled to the first row unit. ### Claim 4 (depends on 3) The pneumatic distribution system of claim 3, wherein a first inner diameter of the inlet is substantially equal to a second inner diameter of the first outlet. ### Claim 5 (depends on 4) The pneumatic distribution system of claim 4, wherein the first inner diameter and the second inner diameter are each approximately 2.54 cm. ### Claim 6 (depends on 1) The pneumatic distribution system of claim 1, wherein the second conduit assembly comprises a first hose, a second hose, and a tube extending between the first hose and the second hose. ### Claim 7 (depends on 6) The pneumatic distribution system of claim 6, wherein a first inner diameter of the first hose is substantially equal to a second inner diameter of the tube. ### Claim 8 (depends on 7) The pneumatic distribution system of claim 7, comprising a coupler to couple the first hose to the tube. ### Claim 9 (depends on 7) The pneumatic distribution system of claim 7, wherein a third inner diameter of the second hose is larger than the second inner diameter. ### Claim 10 (depends on 6) The pneumatic distribution system of claim 6, wherein a first inner diameter of the tube is larger than a second inner diameter of the first hose. ### Claim 11 (depends on 10) The pneumatic distribution system of claim 10, wherein a third inner diameter of the second hose is substantially equal to the first inner diameter. ### Claim 12 (depends on 11) The pneumatic distribution system of claim 11, comprising a coupler to couple the tube to the second hose. ### Claim 13 (depends on 1) The pneumatic distribution system of claim 1, wherein the second row unit is positioned farther from the inductor box than the first row unit. ### Claim 14 A pneumatic distribution system for an agricultural implement comprising: an inductor box having a plurality of output ports, wherein the inductor box is configured to receive an agricultural product and an airflow, to combine the agricultural product with the airflow, and to direct the agricultural product and the airflow through the plurality of output ports; a plurality of row units each configured to receive the agricultural product and the airflow, and to deposit the agricultural product into soil; and a conduit system extending between the plurality of output ports of the inductor box and the plurality of row units, the conduit system configured to direct the agricultural product and the airflow from each output port of the plurality of output ports to a respective row unit of the plurality of row units; wherein the conduit system comprises a first conduit assembly extending between a first output port of the plurality of output ports and a first row unit of the plurality of row units, and a second conduit assembly extending between a second output port of the plurality of output ports and a second row unit of the plurality of row units, and wherein the first conduit assembly comprises a first hose coupled to the first output port and a first tube coupled to the first hose, the second conduit assembly comprises a second hose coupled to the second output port and a second tube coupled to the second hose, and a first inner diameter of the first tube is smaller than a second inner diameter of the second tube. ### Claim 15 (depends on 14) The pneumatic distribution system of claim 14, wherein the first inner diameter is approximately 2.54 cm, and the second inner diameter is approximately 3.18 cm. ### Claim 16 (depends on 14) The pneumatic distribution system of claim 14, wherein the second row unit is positioned farther from the inductor box than the first row unit. ### Claim 17 A pneumatic distribution system for an agricultural implement comprising: an inductor box having a plurality of output ports, wherein the inductor box is configured to receive an agricultural product and an airflow, to combine the agricultural product with the airflow, and to direct the agricultural product and the airflow through the plurality of output ports; a plurality of row units each configured to receive the agricultural product and the airflow, and to deposit the agricultural product into soil; and a conduit system extending between the plurality of output ports of the inductor box and the plurality of row units, the conduit system configured to direct the agricultural product and the airflow from each output port of the plurality of output ports to at least two row units of the plurality of row units; wherein the conduit system comprises a first hose extending between a first output port of the plurality of output ports and a first row unit of the plurality of row units, and a second hose extending between the first row unit and a second row unit of the plurality of row units, and wherein a first inner diameter of the first hose is larger than a second inner diameter of the second hose. ### Claim 18 (depends on 17) The pneumatic distribution system of claim 17, wherein the first inner diameter is approximately 3.18 cm. ### Claim 19 (depends on 17) The pneumatic distribution system of claim 17, wherein the second inner diameter is approximately 2.54 cm. ### Claim 20 (depends on 17) The pneumatic distribution system of claim 17, wherein the first row unit is adjacent to the second row unit.