Dispensing Means Driven Or Controlled By Surface Contact Patents (Class 222/613)
  • Patent number: 10219506
    Abstract: An agricultural sprayer arrangement includes a chassis, at least one ground engaging traction member carried by the chassis, a liquid tank carried by the chassis, a boom carried by the chassis, a fluid conduit associated with the boom that is fluidly connected to the liquid tank, a spray nozzle that is fluidly connected to the fluid conduit and includes a nozzle body, a differential pressure sensor with a first pressure sensor in the fluid conduit associated with the spray nozzle and a second pressure sensor in the nozzle body, and an electrical processing circuit coupled to the differential pressure sensor. The differential pressure sensor is configured to output a pressure difference signal and the electrical processing circuit is configured to report a blocked nozzle when the pressure difference signal is less than a predetermined threshold value.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: March 5, 2019
    Assignee: CNH Industrial America LLC
    Inventor: Bingcheng Ni
  • Patent number: 10209111
    Abstract: An agricultural sprayer arrangement includes a chassis; a ground engaging traction member carried by the chassis; a liquid tank carried by the chassis; a boom carried by the chassis; a conduit associated with the boom in fluid communication with the liquid tank that acts as a fluid flow path; a nozzle having an inlet in fluid communication with the conduit; a first flow sensor placed upstream of the inlet in the fluid flow path that provides a first flow signal; a second flow sensor placed downstream of the inlet in the fluid flow path that provides a second flow signal; and an electrical processing circuit coupled to the first flow sensor and the second flow sensor that is configured to compare the first and second flow signals to determine a flow rate decrease and issue an alarm if the flow rate decrease is less than a predetermined threshold level.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: February 19, 2019
    Assignee: CNH Industrial America LLC
    Inventor: Bingcheng Ni
  • Patent number: 9635848
    Abstract: Spray systems and control systems for use with spray systems are provided. A spray system generally includes a tank configured to hold a product, a conduit in fluid communication with the tank, a pump in fluid communication with the conduit, a flow controller, a plurality of electrically actuated nozzle assemblies in fluid communication with the conduit, and a pressure controller. The flow controller is configured to regulate a flow rate of product through the conduit based on a travel speed of the system. The plurality of nozzle assemblies is configured to dispense the product such that an upstream nozzle pressure is established within the conduit. The pressure controller is configured to control at least one operating parameter of at least one of the nozzle assemblies based at least in part on speed information indicative of the travel speed of the system to maintain a substantially constant upstream nozzle pressure.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: May 2, 2017
    Assignee: Capstan Ag Systems, Inc.
    Inventors: Duane Needham, Troy C. Kolb, Gordon Hooper
  • Patent number: 8905667
    Abstract: A scent dispenser includes a holder member that is removably attached to the back side and heel of a hunter's boot and has curved arms disposed at each side thereof, the holder attached to the boot by an elastic cord that extends from one arm, over the vamp portion of the boot, and is releasably attached to the other arm. The back side of the holder removably holds a scent containing bottle in an inverted position at the rear portion of the boot, the bottle having a cap with a sponge that extends a distance below the bottom of the boot heel to engage the ground surface and is compressed to deposit an amount of the scent onto the ground each time a step is taken to leave a scented trail to attract animals, or mask the smell of a human. The bottle may be removed and hung from another object.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: December 9, 2014
    Inventor: Kym Burks
  • Patent number: 8235689
    Abstract: A reciprocating piston liquid pump and piston driver mechanism includes a reciprocating piston liquid pump having a piston chamber and a piston reciprocating in the piston chamber from an unactuated position to an actuated position, with movement of the piston from the unactuated position to the actuated position causing the advancement of product. The piston driver mechanism includes a first driver member having an axis and a sloped circumferential surface extending along its axis, and a second driver member having an axis and a sloped circumferential surface extending along its axis. The first and second driver members are aligned along their axes and mate at an unactuated position along at least a portion of their sloped circumferential surfaces. Rotation of one of the driver members about its axis relative to the other of the driver members causes the second driver member to advance away from the first driver member toward an actuated position.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: August 7, 2012
    Assignee: GOJO Industries, Inc.
    Inventors: Nick E. Ciavarella, David D. Hayes
  • Patent number: 7824632
    Abstract: A dumpster disinfecting and deodorizing projectile may include a mobile external body, a disinfecting agent contained inside the external body, and a deodorizing agent contained inside the external body. The device may further include a mechanism for automatically releasing the disinfecting and deodorizing agents from the external body after the outer surface is separated to the disengaged particulates and thereby effectively eradicating bacteria and odor over an extended period of time in the existing dumpster. Such an automatic disinfecting agent and deodorizing agent releasing mechanism preferably includes a permeable absorbent pad contiguously lining an inner surface of the external body, and a hollow nucleus that has a cavity formed therein.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: November 2, 2010
    Inventor: Robert Duda
  • Publication number: 20100264168
    Abstract: Trash receptacles are rarely cleaned. These containers can contain germs and disease in them in many situations. This liquid dispensing device will spray a liquid of choice with in the interior of the trash receptacle automatically every time it is emptied and replaced onto the support surface. These liquids may drastically reduce the amount of bacteria, germs, insects, and disease with in the container. This device will provide this sanitation service automatically. This liquid dispensing device may be attached to industrial dumpsters as well as to residential trash containers. This device does not require a power supply.
    Type: Application
    Filed: February 22, 2010
    Publication date: October 21, 2010
    Inventor: Eric Stephen Larabee
  • Patent number: 7743586
    Abstract: A mortar applying machine incorporating housing, having a rotatable drive wheel mounted therein, the drive wheel adhered upon a pivot shaft located within the housing, and the drive wheel being disposed through the bottom of the housing for mortar and engagement with the surface of a row of blocks previously applied in the forming of a building wall. Fixedly mounted to the same shaft are a pair of paddles, formed of blades, which assure the proper shifting and movement of the fluid mortar into position within the housing, for passage out of its lower openings, and onto the transverse lands of the row of blocks as previously applied into the building wall. A diverter is provided within the housing to assure that the fluid mortar flows towards the front of the housing with respect to the direction of its movement when depositing a layer of mortar onto a previously laid row of blocks.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: June 29, 2010
    Assignee: Save Block, LLC
    Inventor: Norman Hancock
  • Patent number: 6170704
    Abstract: A mobile products applicator includes a monitoring system particularly adaptable for use in selected product management applications, wherein application rates for selected products stored on-board one or more storage devices are measured on-the-go and visually reported to an applicator operator in near real-time. The mobile products applicator provides environmental advantages to all through enhanced resource management by eliminating or significantly reducing ground and/or water contamination.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: January 9, 2001
    Assignee: Ag-Chem Equipment Company, Inc.
    Inventor: Dwayne A. Nystrom
  • Patent number: 6092973
    Abstract: A material eject system includes an ejector mounted to a bed of a vehicle which is movable between a rear end and a forward end of the bed for ejecting material from the bed. The ejector is powered by a cylinder having different fluid volumes depending on the direction of motion of the cylinder. A control circuit operates with the ejector motor to automatically move the ejector through eject and return cycles. The ejector includes a speed control for operating the motor and the ejector at different speeds.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: July 25, 2000
    Assignee: Caterpillar Inc.
    Inventors: Steven Burnett, Peter F. Prillinger, David A. Young
  • Patent number: 5949338
    Abstract: A cylindrical personal protection device is disclosed having an aerosol cylinder with a nozzle, a light and a removable safety cap. In an embodiment with dual cylinders, the cylinders contain a deterrent spray and a glowing liquid. A trigger proximate the cylinders expells the contents of the cylinders where they are mixed prior to explusion. A body section has a battery receiving area and an alarm. The electronics connect the battery receiving area, trigger, alarm and light. The electronics activates the light and alarm, in response to activation of the trigger, causing them to pulse simultaneously. The cylinders and the body portion are removably connected to one another. A safety lid prevents activation of the trigger.
    Type: Grant
    Filed: July 1, 1997
    Date of Patent: September 7, 1999
    Inventors: J. Roger Masi, William F. Hall
  • Patent number: 5873529
    Abstract: A device for distributing a deodorising, fragrancing insecticidal or the like product is arranged to be activated by opening and closing a room door. In one embodiment, the device comprises a spring plastics bracket 10 clipped to the bottom of a door and carrying spring clips 16 supporting for rotation a hollow plastics roller 20 containing a solid deodorant, fragrancing compound or insecticide, and having apertures in its wall to allow vaporised deodorant or the like to escape. The dispersal of the deodorant, fragrance or the like is promoted every time the door is opened and closed and so the rate of use of the deodorant, fragrancer or insecticide is appropriately related to room use.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: February 23, 1999
    Assignee: Durand Limited
    Inventor: William Nevil Heaton Johnson
  • Patent number: 5845818
    Abstract: A metering system is driven by a transmission for metering product from a product tank. The metering system has a meter housing, within which is mounted a meter cartridge having an inlet releasably coupled to the product tank. A meter roller which has an axial bore is rotatably mounted in the meter cartridge. A drive shaft extends through the axial bore of the meter roller for rotating the roller with the drive shaft. A meter drive is fixed to an end of the drive shaft against rotation relative to the drive shaft. The meter cartridge has an engaged position wherein the meter cartridge is mounted in the meter housing and the meter drive is engaged by the transmission for rotating the meter roller, as well as a disengaged position where the meter drive is not engaged by the transmission for allowing the meter cartridge to be removed from the meter housing and for allowing the inlet of the casing section to be at least partially uncoupled from the product tank.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: December 8, 1998
    Assignee: Deere & Company
    Inventors: David Walter Gregor, Donald Keith Landphair
  • Patent number: 5735959
    Abstract: An apparatus of spreading a fluid on the floor includes four rectangular application rotating bodies partially overlapping each other, and four nozzles supplying the fluid provided in rotation areas of the respective application rotating bodies. The rotation position of the application rotating body is detected by a light shielding plate and a photosensor. A control portion controls each component so that the fluid is applied onto the floor from a tank through the nozzle by a pump when the application rotating body is not directly under the nozzle. As a result, the apparatus of spreading a fluid on the floor capable of optimally controlling the quantity of the fluid to be applied according to the application condition can be provided.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: April 7, 1998
    Assignee: Minolta Co, Ltd.
    Inventors: Naoki Kubo, Shigeru Oyokota, Nobukazu Kawagoe, Masashi Nishikado
  • Patent number: 5644297
    Abstract: A personal protection device is disclosed with a mixing area and mixing nozzle. A fluid container rests on a moveable container base having a nozzle which extends into the mixing area. The fluid container can be a two portion flexible ampule or a canister. A two part glowing fluid is used, which is mixed prior to expulsion from the device. An irritative substance is placed in one of the mirror image sections. A compression device is maintained in a non-compressed position when unarmed and is activated by a trigger and locking device. A battery receiving area is connected to the internal electronics, trigger, alarm and light. A moveable safety latch is proximate the trigger preventing access to the trigger when in the unarmed position and allows access when in the armed position. A safety cap is held in the unarmed position by a reset bar. A plug portion in the safety cap is dimensioned to fit within mixing area nozzle.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: July 1, 1997
    Inventors: J. Roger Masi, William F. Hall
  • Patent number: 5517180
    Abstract: A cylindrical personal protection device is disclosed having an ampule section containing a flexible, multi-chamber ampule with a nozzle, a light and a removable safety cap. The ampule contains a deterrent spray and a glowing liquid. At least a portion of the ampule portion is removable allowing access to the ampule. A trigger proximate the ampule extends beyond the periphery of the ampule section. A body section has a battery receiving area and an alarm. The electronics connect the battery receiving area, trigger, alarm and light. The electronics activates the light and alarm, in response to activation of the trigger, causing them to pulse simultaneously. The ampule portion and the body portion are removably connected to one another. At least a pair of protective bumpers prevent damage. A safety pin prevents the trigger from contacting the ampule and partial removal of the safety pin allows the trigger to contact the ampule, expelling the contents of the ampule, and activating the alarm and light.
    Type: Grant
    Filed: July 26, 1994
    Date of Patent: May 14, 1996
    Inventors: J. Roger Masi, William F. Hall
  • Patent number: 5301848
    Abstract: A metering device for controlling the flow of granular material through a conduit. The metering device includes a electrical coil operably associated with the conduit, a ferromagnetic latching strip disposed in the magnetic field produced by the coil, and a pivoting gate including a magnet that is attracted toward and repelled from the latching strip as the direction of electrical current flowing through the coil is changed. A closed container includes the metering device secured to its bottom so that the granular material can be dispensed only through the meter. The closed container is electrically connected by wires to a dispensing controller located in the tractor cab. The granular material, such as insecticide, is simultaneously and equally dispensed at the desired rate to the seed furrows from all the individual planting units of the planter.
    Type: Grant
    Filed: October 15, 1992
    Date of Patent: April 12, 1994
    Inventors: Larry M. Conrad, David S. Walton
  • Patent number: 5234128
    Abstract: A material spreader consisting of a hopper, attached to a motor vehicle, which receives and dispenses an aggregate material in predetermined quantities and in a layer having substantial uniformity in thickness. The rate of dispensing the aggregate material is controlled by a computer which receives the desired weight of aggregate per area data input from the operator, senses the velocity of the motor vehicle, and adjusts the release rate of the aggregate from the hopper. The hopper is laterally expansible to accommodate varying road widths, and dispenses the aggregate material through gate openings in the bottom of the hopper. The aggregate is dispensed from the hopper without the aid of any operational parts exposed to the aggregate material within the interior area of the hopper.
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: August 10, 1993
    Inventor: Francis K. Hill
  • Patent number: 5131570
    Abstract: An apparatus has been devised for repairing divots on a golf course which is comprised of an elongated tubular housing containing seeds or dressing and has a lower dispenser end, a spring-loaded rod disposed in the lower end including an agitator at the upper end of the rod and a valve member which releasably engages a valve seat in the lower end of the housing. When the rod is depressed against the ground, the valve is raised away from the seat and an agitator associated with the rod will loosen seeds or dressing to facilitate its discharge by gravity feed through the lower end of the housing so that it can be deposited evenly onto the area to be repaired.
    Type: Grant
    Filed: May 1, 1991
    Date of Patent: July 21, 1992
    Inventor: Kenneth C. Sawyer, III
  • Patent number: 5035352
    Abstract: This invention discloses an adjustable apparatus for spreading mortar onto bricks or blocks. The apparatus utilizes augers and is readily adjusted to extrude beads of mortar onto the proper portions of bricks/blocks having different widths. A trowel member is provided on the extrusion ports to smooth the beads of mortar. The apparatus includes a lid member that contains water for wetting the mortar. The weight of the lid member containing water also helps urge the mortar out of the hopper through the extrusion ports. Mortar gate plate members to regulate flow of mortar through the extrusion ports are also provided.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: July 30, 1991
    Inventor: Frank Mania
  • Patent number: 4878598
    Abstract: A method and apparatus for dispensing a substance to a work area in which the method includes the steps of determining the quantity of the substance to be dispensed substantially evenly to the work area, calculating the rate of dispensing the substance to the work area for the quantity determined in the determining step to achieve substantially even dispensing, dispensing the substance to the work area at the calculated rate during movement over the work area, and adjusting the rate of dispensing at intervals during such movement to minimize error in such dispensing.
    Type: Grant
    Filed: April 30, 1987
    Date of Patent: November 7, 1989
    Assignee: California Fresno Transportation, Inc.
    Inventor: Dolph W. Ruschhaupt, Jr.
  • Patent number: 4863069
    Abstract: An applicator for particulate carpet-cleaning compositions having a cylindrical body formed of relatively rotatable inner and outer concentric cylindrical members in 360.degree. frictional nested engagement, separately attached non-rotatably to opposite wheel members of greater diameter than the body, and having dispensing apertures in cylinder which may be closed by the other depending on relative rotational positions. The cylindrical members are relatively rotatable very easily be opposed manual rotation of the wheels to dispensing positions, a closed position, and a filling position in which major filling openings in the cylindrical members are aligned. The cylindrical members are indexed to exact relative positions for accurate dispensing, spill-free filling and air-tight closure.
    Type: Grant
    Filed: April 19, 1988
    Date of Patent: September 5, 1989
    Inventors: William F. Glaeser, Grant D Hodges, David R. Sheppard
  • Patent number: 4805088
    Abstract: This invention relates to an improved method and apparatus for application of agrochemicals from a moving vehicle. It utilizes a multiple chemical infusion system for mobile spraying of liquid mixtures at present, controlled, and monitored application rates which integrate ground speed, solute concentration, diluent volume and spray swath path width using dynamic, real time software in a digital computer unit with a read only memory chip. Microprocessor controlled peristalic squeeze pumps, capable of simultaneous or independent application of a plurality of chemicals, infuse chemicals to be applied into solvent water where the mixture is delivered to a boomless spray assembly by a centrifugal pump or application. The microprocessor is controlled by the operator of the moving vehicle.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: February 14, 1989
    Assignee: Cross Equipment Company, Inc.
    Inventors: Hewis W. Cross, Roger T. Paulk
  • Patent number: 4523280
    Abstract: An improved control system for a mobile material distribution apparatus of the type having a ground speed sensor, a distributing device for spreading material along the path of travel of the apparatus, a variable rate delivery structure for delivering material to the distributing structure and a delivery rate sensor. The control system comprises a calculating circuit responsive to signals developed by the ground speed sensor and delivery rate sensor and to a signal corresponding to a desired distribution rate of material for periodically calculating the difference between the desired delivery rate and the actual delivery rate and developing a difference signal. A control signal is developed in response to each difference signal for varying the delivery rate of material to the distributing structure as necessary to achieve the desired material delivery rate.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: June 11, 1985
    Assignee: Dickey-john Corporation
    Inventor: Wesley J. Bachman
  • Patent number: 4493272
    Abstract: An agricultural planter for metering seeds for row crops includes a main frame in the form of a sled with transport wheels which can be selectively raised and lowered for transporting the planter and a tool bar for mounting a plurality of implements. A planter unit for the planter machine includes a main frame having a pair of vertically extending shanks for connecting to the tool bar, a mounting bracket for a seed shoe, and a bracket for a press wheel, a vacuum operated seed dispensing device with the vacuum provided by a vacuum fan mounted on the sled and powered by hydraulic motor with fluid from the main hydraulic system of the tractor. A jack shaft mounted transverse to the sled for powering the implements is driven by a ground wheel including a frame having a pair of reversible tool bar shanks and a drive transmission including a countershaft providing the pivotal support for the frame of the ground wheel.
    Type: Grant
    Filed: July 3, 1980
    Date of Patent: January 15, 1985
    Inventor: Louie M. Rouhotas, Sr.
  • Patent number: 4410105
    Abstract: Apparatus and method for dispensing a gel containing seeds for planting. A container (11) has a piston (13) driven by a lead screw (14) for expressing the gel through outlet (12). A line (17) is wound around a control rotor (16) and a free end is secured at a fixed location (19). As container (11) is moved away from location (19), line (17) unwinds and rotates rotor (16) to express the gel at a rate related to the movement of the container (11), so that the operator does not have to match the dispensing rate to the rate of movement. In other arrangements the container moves towards the fixed location, or between two fixed locations. Other metering members may replace the line. Materials other than seeds in gel may be dispensed.
    Type: Grant
    Filed: December 19, 1979
    Date of Patent: October 18, 1983
    Inventor: Ian E. Currah
  • Patent number: 4392611
    Abstract: An automatic control system for a vehicular liquid sprayer includes a control circuit for receiving a liquid pressure signal and a vehicle ground speed signal and operator accessible controls for delivering to the control circuit signals corresponding to a desired application rate, to the number of nozzles associated with the vehicular liquid sprayer and to the nozzle spacing. The operator may vary the input signal corresponding to desired application rate plus or minus a given percentage to compensate for tolerances in the liquid sprayer system. The control circuit calculates the liquid pressure necessary to achieve the desire application rate and the difference between this desire liquid pressure and the measured liquid pressure and produces control signals corresponding to this difference. A duty cycle control circuit converts these control signals to a cyclical control signal for driving a motor-driven flow control valve.
    Type: Grant
    Filed: May 15, 1981
    Date of Patent: July 12, 1983
    Assignee: Dickey-john Corporation
    Inventors: Wesley J. Bachman, Robert C. Funk
  • Patent number: 4352445
    Abstract: An applicator for introducing and spreading building material in a controlled manner to a building surface. The device includes a housing adapted to contain a predetermined amount of building material therein. Guides are on the housing adapted to engage with the building surface and direct the applicator into desired alignment with the building surface and to direct the applicator along a predetermined path when the applicator is associated with the building surface and moved there along. A metering structure communicates with the interior of the housing and with at least one opening to the exterior thereof to direct a predetermined pattern of building material from the interior of the housing through the opening and onto the building surface. The applicator is particularly useful in applying and spreading mortar to bind an arrangement of rows of concrete blocks.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: October 5, 1982
    Inventors: Philip Cusumano, Vincent Cusumano
  • Patent number: 4285448
    Abstract: A hopper gravity feeds powder into a closeable chute. The outlet of the chute is in wiping contact with the surface of a journaled and partially enclosed roller. One or more grooves are disposed in the roller for receiving gravity discharged powder from the chute. As the exposed part of the roller is rolled across a surface, the powder is transported by the grooves from the chute to the surface and deposited thereon in a configuration commensurate with that of the depositing groove.
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: August 25, 1981
    Inventor: Spencer M. Group
  • Patent number: 4240583
    Abstract: A sheet metal vehicle chassis supporting a container of liquid to be sprayed is provided on at least one of its wheels with cam rollers fixed to the wheel for rotation. The roller cams compress a loop of pump hose at spaced locations to siphon liquid from the container by way of a suction hose and discharge liquid through a discharge hose connected to respective hose barbs projecting through a hose barb mounting plate overlying the roller cams and having opposite ends coupled to said loop. An orthogonally adjustable nozzle support tube, connected at one end to the discharge hose, insures a varying density and pattern spray of liquid on the underlying floor during movement of the vehicle in self-pumping operation over said floor.
    Type: Grant
    Filed: April 9, 1979
    Date of Patent: December 23, 1980
    Assignee: Chemical Applicator, Inc.
    Inventor: Gary W. Hughes
  • Patent number: 4155315
    Abstract: A mobile spreader of the type drawn by a tractor includes a hopper mounted on a roller. The roller is provided with a jarring strip which imparts a jolt to the hopper on each revolution of the roller. This jolting action prevents bridging of the material in the hopper, knocking the hung-up material down into the lower portion of the hopper where an agitator and an impellor further stir up the material. The cooperative effect of the jarring strip, the agitator and the impellor is to provide a steady supply of material, even when moist material is being distributed. The rate of application of the material is controlled by a slidable apertured plate disposed across an opening in the bottom of the hopper. The spreader may be selectively provided with a rake, a floater plate, and a spiker. The spiker may be attached in front of the roller to open the turf to receive the material, or behind the roller to work the applied material into the turf. In addition, the spiker aerates the turf.
    Type: Grant
    Filed: December 16, 1977
    Date of Patent: May 22, 1979
    Inventor: John B. Dobbins
  • Patent number: 4117788
    Abstract: Seed sowing apparatus comprising a plurality of ground-engaging discs arranged in staggered relationship in two or more rows and driven from ground-engaging wheels, with individual seed metering devices carried by and driven by each disc to deposit seeds at regularly spaced intervals.
    Type: Grant
    Filed: April 6, 1977
    Date of Patent: October 3, 1978
    Inventor: Edward Whitehead
  • Patent number: 4027606
    Abstract: A planter for planting disk-shaped environmental seed cells which are formed of low-density readily-crumbled, compressed pulverulent material. The planter apparatus comprises a planter chassis supported from a tool bar of a tractor and pivotally supported thereon and resiliently urged at each end into contact with the ground. The planter comprises means for separating seed disks in the hopper and transferring seed cells therefrom in a file along a pair of inclined rollers driven in the same direction to dispense the seed disks individually through a chute into a furrow formed by a furrow shoe. The row of seeds is then compacted by a packing wheel which is also resiliently urged into ground-engaging contact from the support bar and serves to drive the separating and conveying rollers on the planter.
    Type: Grant
    Filed: November 28, 1975
    Date of Patent: June 7, 1977
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Philip B. Knapp