Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7584806 | Implement lift cylinder support A support structure for an implement lift cylinder on an earth-working machine. The support structure includes first and second implement lift cylinder supports. The first implement lift cylinder support mounts to the work machine and the second implement lift cylin... | 09/08/2009 |
| 7192034 | Load based suspension motion limiting An articulated loader has an articulated chassis and two A-frames. The points of the A-frames face each other. The articulated chassis includes a front portion and a rear portion. Likewise, there is a front or first A-frame and a rear or second A-frame. The A-frames... | 03/20/2007 |
| 6957705 | Loader linkage A Z-bar loader linkage having a floating bell crank. A boom is pivotally mounted to a loader frame at one end and an attachment at the other end. The bell crank is pivotally mounted on leveling links extending forwardly from the loader frame. The drive end of the be... | 10/25/2005 |
| 5899280 | Tilting front end loader A tilting loader is provided including a pair of arms connected to a vehicle and adapted to raise and lower. Also included is a bucket including a rear portion having a rear face pivotally coupled to the arms. A tilt mechanism is included for rotating the... | 05/04/1999 |
| 5862868 | Bulldozer blade pitch control method and controller for the same A bulldozer blade (10) is automatically reset to a predetermined excavating pitch while the bulldozer (20) is traveling backwardly after it has completed an operation of excavating, carrying, or dumping earth. The bulldozer blade (10) can be set to an exc... | 01/26/1999 |
| 5813476 | Blade mounting structure A bulldozer blade mounting structure is disclosed. The mounting structure includes a first pivot arm having a first end adapted for pivotal attachment to a tractor and a second end coupled to a bulldozer blade, and a second pivot arm having a first end ad... | 09/29/1998 |
| 5775438 | Earth working scraper apparatus A front-end mounted earth working apparatus for a vehicle, including a skid steer, forms the subject of this invention. The earth working apparatus has a guide frame portion and grading portion. The guide frame portion is attached to the skid steer by a m... | 07/07/1998 |
| 5762147 | Tractor front mount for implement attachment and use This invention is a simple, safe, and inexpensive beam structure for tractor forward mounting of a blade (24). A pivot plate (11) is mounted at the tractor lower mid-section. Parallel beams (12) are positioned through the pivot plate (11) and extend beyon... | 06/09/1998 |
| 5732781 | Mechanism to laterally tilt front end loader buckets A mechanism to interfit between the bucket of a front end loader and its support and tilting arms allows the bucket be tilted in a laterally extending vertical plane. The mechanism provides a rear plate, having rearwardly extending fastening structure to ... | 03/31/1998 |
| 5010961 | Angle-tilt-pitch mechanism for dozer blade An improved mechanism for connecting a ground-engaging blade to the frame of a vehicle is disclosed which allows the blade to tilt, pitch or angle relative to the frame. The disclosed arrangement includes a pair of hydraulic cylinders which control the ti... | 04/30/1991 |
| 4936392 | Road shoulder grading attachment A road shoulder grading attachment movably attachable to the bucket of a front-end loader is provided. The attachment includes an upright grading blade attachable to the bucket of the loader in an angled position forward of the bucket. The attachment also... | 06/26/1990 |
| 4909330 | Automotive earth moving vehicle with segmented blade for alternating between straight and angular shapes An automotive earth moving vehicle for civil and military applications. The lade is movable with respect to the body by two independently operable sets of fluid driven actuator sets which are in intersecting spatial relationship. Each actuator set is arran... | 03/20/1990 |
| 4907357 | Snow plow assembly adapted for mounting on a vehicle and method of using the same A snow plow assembly adapted for mounting on a vehicle. The snowplow assembly includes a conventional blade mounted on the front of the vehicle and powered with conventional hydraulic systems. The snow plow assembly also includes a blade mounted on the re... | 03/13/1990 |
| 4373851 | Bulldozer and backhoe lock device A bulldozer and backhoe locking device for prevention of theft of heavy equipment having hydraulic pistons and cylinders by locking the blade or bucket against the ground by placement of an elongated sleeve pivoted together along one edge over the extende... | 02/15/1983 |
| 4337837 | Mounting mechanism for angle dozer blade A dozer blade mounting for a dozer frame having a dozer blade movably supported thereon includes at least one rigid link that has one end pivoted on the vehicle frame and the opposite end pivoted on the dozer frame with fluid ram means associated with the... | 07/06/1982 |
| 4269427 | Lifting device and associated structure Removable lifting devices for tractors having horizontal front wheel axles which pivot relative to the contour of the ground, one device having tubes pivotably connected on each side of the tractor frame which rotatably and pivotably receive further tubes... | 05/26/1981 |
| 4253529 | Support structure for dozer blade A mounting structure for a dozer frame having a dozer blade supported thereon consists of a pair of rigid links of equal length which are pivotally connected at vertically spaced pivot points on a vehicle frame and have free ends connected to the mounting... | 03/03/1981 |
| 4244429 | Mounting mechanism for angle dozer blade A dozer blade mounting for a dozer frame having a dozer blade movably supported thereon includes at least one rigid link that has one end pivoted on the vehicle frame and the opposite end pivoted on the dozer frame with fluid ram means associated with the... | 01/13/1981 |
| 4211282 | Adjustable blade stabilizer and controls An adjustable blade stabilizer and controls utilized in an earth-working machine such as a bulldozer. The blade and push arms of the machine form a U-shaped structure which is unable to adjust to substantial lateral loads imposed on the blade. The blade s... | 07/08/1980 |
| 4135584 | Blade stabilizing linkage for a bulldozer A bulldozer including a vehicle frame, a dozer blade forwardly of the frame, a lift linkage movably secured to the frame and including two spaced arms extending longitudinally of the frame and connected to the blade, at least one motor connected to the fr... | 01/23/1979 |
| 4078616 | Track-type vehicle frame A frame for a crawler tractor designed to permit selective mounting of at least two pairs of endless track assemblies of different widths, together with bulldozer assemblies of different configurations suitable for use with the respective pairs of track a... | 03/14/1978 |
| 4077141 | Tire protector assembly for a wheel loader A wheel loader having a pair of lift arms pivotally mounted to the frame of the loader and a bucket pivotally connected to and moved by the lift arms includes a tire protector assembly having one or more deflector blade members pivotally mounted to the fr... | 03/07/1978 |
| 4024922 | Blade attachment with built-in air vent A blade attachment having a built-in air vent or duct to permit the flow of air to or from the engine space through the blade when in the raised position.... | 05/24/1977 |
| 4023625 | Structure mounting a bulldozer assembly to a vehicle Structure for mounting a bulldozer assembly to a vehicle, such as a tractor. The mounting structure includes lift jacks connected to a radiator guard extending about the vehicle engine coolant radiator. The mounting structure includes a portion connected ... | 05/17/1977 |
| 4019588 | Tilting means for bulldozer blades A bulldozer assembly comprises a pair of laterally spaced push arms pivotally interconnected between a blade thereof and a vehicle. A pair of lift cylinders are also pivotally connected between the vehicle and the blade for selectively raising or lowering... | 04/26/1977 |
| 3964803 | Self-aligning trunnion bearing assembly A trunnion ball and socket bearing assembly suitable for coupling the push arms of a bulldozer attachment to the sides of a tractor has a removable sleeve disposed coaxially on a trunnion shaft to define a spherical surface. Separatable bearing caps enclo... | 06/22/1976 |
