1
Jon E Kinzenbaw: Folding row marker. Kinze Manufacturing, Emrich & Dithmar, January 22, 1991: US04986367 (61 worldwide citation)

A folding row marker includes first, inner and second, intermediate sections pivotally coupled together, as well as a third, outer section pivotally coupled to a distal end of the second section. A marker disc is disposed on the distal end of the third section and a hydraulic ram pivotally displaces ...


2
Michael D Snyder: Tri-fold row marker. Deere & Company, January 10, 1995: US05379847 (51 worldwide citation)

A tri-fold row marker comprises three arm segments, a winglet pivotally coupled to the toolbar, an inner arm pivotally coupled to the winglet, and an outer arm pivotally coupled to the inner arm. A marker disc is mounted to the distal end of the outer arm for marking the ground surface when said row ...


3
Eugen Bexten, John F Stufflebeam: Floating marker arm mechanism. J I Case Company, Dressler Goldsmith Shore Sutker & Milnamow, June 23, 1987: US04674578 (51 worldwide citation)

A floating marker arm mechanism is disclosed. The marker arm mechanism comprises a bifolded marker arm pivotably mounted on a wheeled farm implement. The marker arm comprises first and second elongated members, pivotally connected together. The marker arm folds and is generally vertically disposed w ...


4
Gregory S White: Planter row marker. Deere & Co, Henderson & Sturm, July 23, 1985: US04530405 (51 worldwide citation)

A row marker for a planting implement having a floatation slot formed in an extendable marker link arm. The link arm slot is generally longitudinal to the link arm and has a transverse hooked portion at the outer end. Engagement of the end pin of an activating hydraulic cylinder in the hook portion ...


5
Duane Haukaas: Field marker. Adrian D Battison, Stanley G Ade, Murray E Thrift, July 2, 1991: US05027525 (44 worldwide citation)

An improved field marker is provided which can be used on an agricultural implement of the type which includes wing folding. The field marker has an arm with a disk mounted on an outer end of the arm and a mounting system at the inner end of the arm for supporting the arm on the implement. The arm i ...


6
James H Bassett: Apparatus for marking soil. Dawn Equipment Company, Arnold White & Durkee, January 23, 1996: US05485796 (43 worldwide citation)

An apparatus to be advanced in a travel direction by a vehicle to continuously mark underlying soil. The apparatus has an elongate body with first and second portions and leading and trailing surfaces. Structure is provided at a first location on the elongate body for engaging and marking underlying ...


7
Yeske Laurel R: Row marking apparatus. J I Case Company, May 30, 1972: US3666019 (18 worldwide citation)

A row marking apparatus including first and second row markers individually pivoted at one end on a tool bar of a tractor. Each marker is pivoted between raised and lowered positions by a ram having its cylinder connected to the tool bar and its piston rod pivotally connected intermediate the ends o ...


8
Brown David N: Electronic marker actuator. May 25, 1971: US3580340 (17 worldwide citation)

An electronic marker actuator for use with an agricultural device such as a planter that is provided with a pivotally connected marker which may be disposed in a substantially vertical position at one time, and released so as to be disposed in a horizontal position at another time, with pushbutton m ...


9
Bernie Toews: Telescoping marker arm. Triple Star Manufacturing, Murray E Thrift, Adrian D Battison, Michael R Williams, June 27, 2000: US06079114 (15 worldwide citation)

A field marker is mounted on the rear corner of the seeder or cultivator frame so that its weight is supported by the packer wheels or support wheel axles at the rear of the frame, thus minimizing the imbalance and uneven seeding that will occur with marker mounted on the front corner. The marker ar ...


10
Ralph O Jacobsen: Field marker for a sprayer boom. Kyle Welding & Machine Shop, Stanley G Ade, July 2, 1985: US04526236 (15 worldwide citation)

A single disc field marker comprises a support arm pivotally mounted on the end of the sprayer boom and carrying on its end a rotatable disc. The disc is supported so that in one position it lies in a plane which is substantially vertical and parallel to the direction of motion of the boom and can b ...