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...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!

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Class 172/575 - Touching disks


Subclass of Class 172 - Earth working
Definition: Apparatus in which two of said platelike members touch each
No. of patents: 15
Last issue date: 07/10/2007


NumberTitleIssue Date
7240627Crop debris clearing device
A residue coulter apparatus that cleanly severs and clears crop debris from a planting row, causing minimal disturbance to the soil. The residue coulter apparatus comprises a pair of flat discs each having a plurality of back swept shark type teeth extending about t...
07/10/2007
6213035Furrow opening disc apparatus
A furrow opener apparatus for attachment to an agricultural implement for depositing agricultural material such as seed and fertilizer in the soil. The apparatus comprises a flat disc rotatably attached to the apparatus such its axis of rotation is perpen...
04/10/2001
6082276Disk colter for seed drills
A disk colter has a main disk for making a furrow in the ground. A secondary disk keeps the furrow open over a long enough distance that one or more seeds can be deposited. A support member supports the disks which are mounted so that they can rotate free...
07/04/2000
5724902Minimum tillage seeding device
A seeding device principally for no-tillage seeding conditions comprises a drag arm carrying two disk blades and transmitting the necessary forces thereto to cut through crop residues at the ground surface and to open a furrow for seed placement in the so...
03/10/1998
5678500Seed delivery device for seed planter
A seed delivery device is positioned on the seed tube of a planter and between a pair of V-oriented opening disks. The device has an elongated duct having an upper end with an opening capable of being disposed in spatial communication with the seed tube. ...
10/21/1997
5482120Method and apparatus for removing plant stalks
Apparatus and method for pulling plant stalks from the ground without severing the stalk at the point of engagement. The pulling action is accomplished with pairs of disks configured to engage the other near each's circumference. An upward pulling action ...
01/09/1996
5398771Grain Drill
A grain drill is disclosed having a folding frame for parallel operation and a parallel link system that controls the tension to earth openers in order to produce relatively constant downward pressure for the openers. The grain drill includes a rotating t...
03/21/1995
4930431No-till field implement
An implement for agricultural field work is primarily useful for preparing a field for no-till planting and comprises a wheel carried frame for carrying a massive fertilizer hopper which has apertures in its bottom portion through which fertilizer flows a...
06/05/1990
4785890Ground-driven rotary row cleaner
The specification discloses an improved row cleaning apparatus to selectively clean away mulch from conservation tilled fields without cultivation of the soil. When mounted on a tractor-drawn planter unit, the cleaning action of the present invention impr...
11/22/1988
4779684Method and apparatus for extracting plant stalks and for reshaping beds
Apparatus for removing upstanding plant stalks from the ground and for mulching the stalks. The apparatus includes simplified disk mechanisms which can be adapted both to cut and mulch plant stalks....
10/25/1988
4590869Double disk opener assembly and disk blade therefor
An improved double disk blade opener assembly and disk blade therefor are provided for a grain drill or the like. A pair of bearings are supported on opposite sides of a seed boot casting or arm structure mounted on the implement. Each bearing supports a ...
05/27/1986
4452315Straw and debris deflector for soil opening apparatus
Disclosed is an apparatus for deflecting straw and other debris from in front of a soil opening implement used in farming. The straw and debris deflector is particularly useful where the soil is generally not tilled. The straw and debris deflector include...
06/05/1984
4345531Apparatus and method for cultivating land
A method and apparatus of treating or cultivating soil consists of a mobile chassis which when propelled over the ground, has means for removing a predetermined amount of soil from the ground to create an open trench therein, tilling the removed soil and ...
08/24/1982
4337835Scraper for double disk furrow opener
A scraper assembly for a double disk furrow opener having a hinge bracket bolted rigidly to the cast boot assembly. Scrapers are supported by the hinge bracket and urged against the inside of the blades by a leaf spring. The bolt holds the relative positi...
07/06/1982
4207823Planter
A compact agricultural planter unit is provided for narrow row crops. The unit includes a pair of double disk furrow openers in combination with adjustable depth gauge wheels. The disks and wheels are carried by frame structure positioned between the whee...
06/17/1980
 
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