Quotables
"The radio craze will die out in time."
Thomas Edison ; 1922
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7063167 | Self leveling towed implement An implement has a tongue used to tow the implement that can be raised or lowered with respect to the rest of the implement. The tongue is raised or lowered by a hydraulic cylinder. The raising and lowering ports of the cylinder are connected to two hydraulic accumu... | 06/20/2006 |
| 6125775 | System for gauge wheel load adjustment A system for ensuring the uniform height of gauge wheels for a towed implement assembly such as a seeder. The seeder has a frame structure with a series of front gauge wheels suspended by the front of the frame structure. A greater number of rear wheels a... | 10/03/2000 |
| 6053257 | Hydraulic pressure takeout apparatus for a tractor A hydraulic pressure takeout apparatus for use on a tractor having a hydraulic device with right and left lift arms for raising and lowering a working implement. The hydraulic pressure takeout apparatus includes a valve assembly mounted on a hydraulic hou... | 04/25/2000 |
| 5348101 | Hydraulic system for a towed implement A hydraulic rockshaft control circuit which includes a three-way valve that normally operates the rockshaft is connected to the lift cylinder on a trailing implement. A hitch lock valve connected to the rockshaft control valve maintains the rockshaft in a... | 09/20/1994 |
| 5152347 | Interface system for a towed implement A towed implement with an implement cylinder may be coupled to the hitch of a tractor which includes a hydraulic pump, a hydraulic sump, a rockshaft cylinder for raising and lowering the hitch, a hitch control valve for controlling fluid flow to the rocks... | 10/06/1992 |
| 5049027 | Hydro-electric tool lock An industrial vehicle has a tool adaptor mounted on the outer ends of a pair of support arms. A self contained hydro-electric unit is mounted on the tool adaptor or on a support arm closely adjacent to the tool adaptor. The unit comprises a hydraulic rese... | 09/17/1991 |
| 4915014 | Disk harrow hydraulic wing balancing system A weight-balancing system for a farm implement, such as a disk harrow with foldable wings operated by wingfold cylinders, includes a selective control valve for controlling fluid communication to the head and rod ends of the wingfold cylinders. A pair of ... | 04/10/1990 |
| 4903781 | Flexible mounting system for agricultural implements A compact flexible mounting system for connection of an agricultural implement to a tractor includes a load transfer member pivotally attached to the upper stabilizing link of a three-point hitch and to the implement support frame to which the lower links... | 02/27/1990 |
| 4825958 | Hydraulic lock for a flexible tool bar A flexible tool bar apparatus including a first tool bar adapted to have earth working implements attached thereto and a second tool bar also adapted to have earth working implements attached thereto. Two tool bars are pivotally attached at the inner ends... | 05/02/1989 |
| 4809786 | Remotely adjustable disk leveling system Adjustable link structure for providing on-to-go disk harrow adjustment from the cab of the towing vehicle. The mechanism for automatically maintaining the frame of a disk harrow at a level condition as the frame is raised and lowered relative to the grou... | 03/07/1989 |
| 4529041 | Soil scraper and leveler The soil scraper of the present invention is adapted for use with a tractor or vehicle having a three point hitch. The device includes an elongated frame having a three point hitch receptacle mounted on its forward end and having an elongated scraper blad... | 07/16/1985 |
| 4487268 | Lifting attachments for cultivators Components suitable to be sold in kits can be readily applied to cultivators of different makes to be able to raise and to lower independently the ground-working tools on either side of the cultivators. A typical kit contains an upper supporting member, t... | 12/11/1984 |
| 4454920 | High speed tillage system with discs and plow points A tillage system includes forward and rear sets of widely spaced discs and a set of plow points. The discs in the forward set are mounted at spaced intervals so as to leave alternate strips of worked and unworked soil of substantially equal width. Each di... | 06/19/1984 |
| 4413685 | Planter implement with adjusting position-display apparatus and system thereof An apparatus is provided for remote selective operator adjustment and display of the position of adjustment of a plurality of ground-supported planting units of a planter. The apparatus includes a planter gauge wheel on each unit adjustably mounted theret... | 11/08/1983 |
| 4337832 | Lift system, steering system, and pivotal blade for land plane A land plane for leveling or grading the surface of a land area. The plane includes a frame defined by a center section and end sections pivotally connected to the center section, with each connection permitting relative physical movement about an axis tr... | 07/06/1982 |
| 4324411 | Implement level lift system A level lift system for an implement in which a main frame is flexibly connected to outrigger frames with a wheel assembly carried by each frame. A hydraulic ram is operably connected between each frame and the associated wheel assembly with the rams conn... | 04/13/1982 |
| 4046399 | Electrohydraulic system for towed vehicle A tractor towed vehicle having a frame and hydraulic functions powered by a plurality of hydraulic devices. An electrohydraulic valve assembly is coupled to the devices and is rigidly secured to the frame of the towed vehicle. A switching assembly having ... | 09/06/1977 |
| 3965989 | Flexible plow A large moldboard plow utilizing a multi-piece backbone or main frame connected by a hinge or hinges and a floatation land wheel or wheels. The hinge or hinges being arranged such that a uniform interval is maintained between the last plow bottom on the f... | 06/29/1976 |
