Abstract: Various methods and devices are provided for allowing multiple surgical instruments to be inserted into sealing elements of a single surgical access device. The sealing elements can be movable along predefined pathways within the device to allow surgical instruments inserted through the sealing elements to be moved laterally, rotationally, angularly, and vertically relative to a central longitudinal axis of the device for ease of manipulation within a patient's body while maintaining insufflation.

Abstract: A metering assembly is provided for use with an air seeding system for delivering one or more particulate materials to an air seeding apparatus, the air seeding system comprising a product tank, configured to hold a particulate material and having an outlet, the metering assembly comprising at least one metering device, the metering device having a housing, an inlet positioned in the housing to receive particulate material from the outlet of the product tank, a first loading zone and a second loading zone, and a flow controller provided beneath the inlet and operative to route particulate material that has entered the metering device through the inlet in a first direction towards the first loading zone and in a second direction towards the second loading zone.

Abstract: A calibration device for calibrating a metering system that dispenses a product to a seeder towed by a farm vehicle is provided for obtaining and maintaining a desired rate of delivery of the product from the seeder. The calibration device includes a first console port positioned at or near the farm vehicle and a second console port at or near the metering system, each operative to receive at least one a calibration console for calibrating the rate of product delivery and adjust the metering system accordingly.

Abstract: An assembly for selectively supplying particulate material to an air seeder, an agricultural implement able to selectively supply and dispense particulate material into the ground and a method of selectively dispensing particulate material into the ground are provided. The assembly has at least one supply receptacle for receiving particulate material from a source and a metering roller for supplying the material to an air seeder. The assembly is operative to selectively supply the material to the air seeder and prevent the material from being supplied to the air seeder. The implement can use the assembly to selectively supply particulate material to ground engaging openers where the particulate material will be dispensed into the ground. Particulate material can be selectively supplied to the implement when it is desired to have the particulate material dispensed into the ground and then prevented from being supplied to the implement when it is not desirable.

Abstract: The invention provides a guidance system for guiding a towed agricultural implement such as seeders, planters, sprayers and the like, along a preferred path between rows of growing crop or standing stubble by sensing the rows of growing crop or standing stubble with a uniquely designed paddle-like sensor means which does not engage the ground.

Abstract: A calibration device for calibrating a metering system that dispenses a product to a seeder towed by a farm vehicle is provided for obtaining and maintaining a desired rate of delivery of the product from the seeder. The calibration device comprises a first console port positioned at or near the farm vehicle and a second console port at or near the metering system, each operative to receive at least one a calibration console for calibrating the rate of product delivery and adjust the metering system accordingly.

Abstract: A ground opener assembly mountable to a frame is provided, comprising a guiding member having a track mountable to the frame; a first trailing arm having a front end and a rear end, the front end of the first trailing arm operably associated with the guiding member so that the first trailing arm can travel along the track; a second trailing arm having a front end and a rear end, the front end of the second trailing arm pivotally attached to the frame; a rear link having a proximal end and a distal end, the rear end of the first trailing arm fixedly attached to the proximal end of the rear link and the rear end of the second trailing arm pivotally attached to the proximal end; at least one dispensing implement and a ground compressing member mounted to the rear link; and a bias device operative to exert a downward bias force on the rear link, the at least one ground opening tool and the ground compressing member.

Abstract: A calibration device for calibrating a metering system that dispenses a product to a seeder towed by a farm vehicle is provided for obtaining and maintaining a desired rate of delivery of the product from the seeder. The calibration device includes a first console port positioned at or near the farm vehicle and a second console port at or near the metering system, each operative to receive at least one a calibration console for calibrating the rate of product delivery and adjust the metering system accordingly.

Abstract: A metering assembly is provided for use with an air seeding system for delivering one or more particulate materials to an air seeding apparatus, the air seeding system comprising a product tank, configured to hold a particulate material and having an outlet, the metering assembly comprising at least one metering device, the metering device having a housing, an inlet positioned in the housing to receive particulate material from the outlet of the product tank, a first loading zone and a second loading zone, and a flow controller provided beneath the inlet and operative to route particulate material that has entered the metering device through the inlet in a first direction towards the first loading zone and in a second direction towards the second loading zone.

Abstract: An agricultural seeder or fertilizer having a meter device which dispenses seed or fertilizer to a plurality of ground-engaging members. The supply of metered seed or fertilizer to each of the ground-engaging members is controlled via input from a GPS/GNSS satellite navigation system to prevent the meter device delivering seed or fertilizer to selected of the ground-engaging members which would otherwise pass over soil which has been previously seeded or fertilized. Raising means, responsive to input from said GPS/GNSS satellite navigation system detecting that the device is travelling or is about to travel over areas of soil that has been previously seeded or fertilized, is further is provided to raise the selected ground-engaging members to which delivery of seed/fertilizer has been prevented in order to prevent soil which has been previously seeded or fertilized from being disturbed. A method of operating a seeder/fertilizer implement to achieve the aforesaid is further disclosed.

Abstract: Apparatus for controlling the placement of seeds deposited by a seed placement device in a furrow. The apparatus comprise a guide member connected to the seed placement device adjacent an exit of the seeds from the placement device adapted to urge seeds discharged from the exit toward a sidewall of the furrow. The guide member of the present invention acts to stop seeds from bouncing off the sidewalls of the furrow and into the centre of the furrow. The guide member organizes the seeds to create one or more seed rows where the seeds are optimally positioned and prevents seeds from ending up in the middle of the furrow. If a fertilizer row is present below the seed furrow, this prevents damage to the seeds by preventing them from being too close to the fertilizer. The guide member also stops the seeds from being swept back into the central region of the furrow with the loose soil that flows back into this area after the knife implement has passed.

Abstract: A calibration device for calibrating a metering system that dispenses a product to a seeder towed by a farm vehicle is provided for obtaining and maintaining a desired rate of delivery of the product from the seeder. The calibration device comprises a first console port positioned at or near the farm vehicle and a second console port at or near the metering system, each operative to receive at least one a calibration console for calibrating the rate of product delivery and adjust the metering system accordingly.

Abstract: The invention provides a guidance system for guiding a towed agricultural implement such as seeders, planters, sprayers and the like, along a preferred path between rows of growing crop or standing stubble by sensing the rows of growing crop or standing stubble with a uniquely designed paddle-like sensor means which does not engage the ground.

Abstract: A sectional meter shut-off apparatus for use in preventing material such as seed or fertilizer from reaching a metering device, for the purpose of preventing double seeding or double fertilizing. The sectional meter shut-off apparatus comprises a plurality of gates capable of opening or closing access to a metering roller. The plurality of gates can be controlled through electric actuators, hydraulic cylinders or a shaft. These gates can individually be controlled through an electric switch connected to the cab of the vehicle and operated by the driver, or automatically controlled by a GPS/GNSS system capable of determining which areas of the field have been previously seeded or fertilized. Additionally, an agricultural implement is further provided, comprising a dual material dispensing apparatus, which incorporates a meter shut-off device, and hydraulic rams to raise ground-engaging soil openers when passing over soil that has been previously seeded/fertilized.

Abstract: Apparatus for controlling the placement of seeds deposited by a seed placement device in a furrow. The apparatus comprise a guide member connected to the seed placement device adjacent an exit of the seeds from the placement device adapted to urge seeds discharged from the exit toward a sidewall of the furrow. The guide member of the present invention acts to stop seeds from bouncing off the sidewalls of the furrow and into the centre of the furrow. The guide member organizes the seeds to create one or more seed rows where the seeds are optimally positioned and prevents seeds from ending up in the middle of the furrow. If a fertilizer row is present below the seed furrow, this prevents damage to the seeds by preventing them from being too close to the fertilizer. The guide member also stops the seeds from being swept back into the central region of the furrow with the loose soil that flows back into this area after the knife implement has passed.

Abstract: A dual material dispensing assembly mountable to a frame for pulling assembly across the ground. The assembly includes an elongate main member having a first end mountable to the frame and a second end pivotally connected to a packer arm at a pivotable joint. A first dispensing implement for dispensing fertilizer to a first depth in the ground is mounted to the main member between the first and second ends. A second dispensing implement for dispensing seed to a second depth, different than the first depth, is mounted to the packer arm. The pivotable joint is intermediate the first and second dispensing implements. There is also a lock for preventing pivoting of the pivotable joint. A packer wheel is mounted to the packer arm at a second end whereby pivoting of the packer arm with respect to the main member at the pivotable joint acts to vary the first and second depths of the by the same amount.

Abstract: A dual material dispensing assembly mountable to a frame for pulling assembly across the ground. The assembly includes an elongate main member having a first end mountable to the frame and a second end pivotally connected to a packer arm at a pivotable joint. A first dispensing implement for dispensing fertilizer to a first depth in the ground is mounted to the main member between the first and second ends. A second dispensing implement for dispensing seed to a second depth, different than the first depth, is mounted to the packer arm. The pivotable joint is intermediate the first and second dispensing implements. There is also a lock for preventing pivoting of the pivotable joint. A packer wheel is mounted to the packer arm at a second end whereby pivoting of the packer arm with respect to the main member at the pivotable joint acts to vary the first and second depths of the by the same amount.