Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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 |
| 7128518 | Working vehicle A lift arm (9) includes a first arm (11) and a second arm (12). A pivot joint portion (32) where the first arm (11) is pivoted on a bracket (8) stood at a vehicle side portion substantially corresponds to the rear end of an ... | 10/31/2006 |
| 7111419 | Thumb for a backhoe A digging implement (10) including an extendable linkage (12) including a bucket (14) and a thumb assembly (34) for holding materials in the bucket (14). The thumb assembly (34) is configured to rotate as the linkage (12 | 09/26/2006 |
| 6615514 | Perfected loading machine with excavator supplement and chassis for the same A loading machine and chassis for the same, of small size, with an excavator supplement, which can be used for loading, excavation, drilling, etc. in small spaces which were previously only accessible to persons. The operator sits astride the chassis with... | 09/09/2003 |
| 6120237 | Attachment for groundworking and material handling machines and a strut assembly therefor An attachment connectable to a boom member of a machine for performing work functions generally consisting of a handle pivotally connectable to a boom member of the machine, a ground engageable arm member pivotally connected to the handle and an extendabl... | 09/19/2000 |
| 5158420 | Rotary dipper stick A vehicle having a fluid-powered rotary dipper stick assembly including a boom attachment head and a bucket attachment head with a body extending therebetween. An axle extends from the boom attachment head into the body and is in sliding engagement with a... | 10/27/1992 |
| 5071310 | Rotary dipper stick A vehicle having a fluid-powered rotary dipper stick assembly including a boom attachment head and a bucket attachment head with a body extending therebetween. An axle extends from the boom attachment head into the body and is in sliding engagement with a... | 12/10/1991 |
| 4973214 | Lift arm structure for front-end loaders In a front-end loader, a lift arm structure including a pair of lift arms which are rigidly joined by an improved cross-piece assembly. The cross-piece assembly includes first and second members which are configured to transversely extend one within the o... | 11/27/1990 |
| 4952116 | Rotary dipper stick A vehicle having a fluid-powered rotary dipper stick assembly including a boom attachment head and a bucket attachment head with an outer body extending therebetween. A shaft extends longitudinally within the outer body. An inner body is disposed within t... | 08/28/1990 |
| 4950127 | Rotary dipper stick A vehicle having a fluid-powered rotary dipper stick assembly including a boom attachment head and a bucket attachment head with an outer body extending therebetween. A shaft extends longitudinally within the outer body. An inner body is disposed within t... | 08/21/1990 |
| 4934897 | Pipe-moving apparatus An improved pipe-moving apparatus is disclosed having a pipe-insertable elongate member which is articulated for ease of use, particularly for pipe laying near trench ends. In a preferred form, the elongate member has a series of at least two carrier memb... | 06/19/1990 |
| 4904151 | Loader lift arm structure There is disclosed a power loader lift arm cross tube stabilizing structure. A pair of loader lift arms are interconnected by a double torque tube stabilizing member which serves to distribute twisting forces encountered by one loader arm more evenly to t... | 02/27/1990 |
| 4887939 | Extension arm assembly for a tractor loader An extension arm assembly for mounting on the forward ends of the boom arms of a tractor loader is described which enables the effective length of the boom arms to be extended thereby enabling the tractor loader to raise materials to a height greater than... | 12/19/1989 |
| 4806067 | Unit, attachable to a loader An assembly capable of being fitted to a loader which is provided with an attachment device intended, for example, for co-operation with respective one ends of two lifting arms whose respective other ends are intended to support suitable load-handling dev... | 02/21/1989 |
| 4609322 | Mounting for a linkage arrangement Earthmoving vehicles are often provided with a linkage arrangement on one end that is utilized to manipulate a work implement, such as a loader bucket. The linkage typically includes a tilting arrangment for the bucket that incorporates a tilt lever that ... | 09/02/1986 |
| 4439089 | Boom arm with rock deflection feature A loader vehicle boom arm assembly incorporates a pair of box section boom arms in which the top plate of each box section boom arm has a cross sectional shape such that the upper surface is provided with an arcuate surface that directs foreign objects en... | 03/27/1984 |
| 4390315 | Fire fighting boom assembly for service vessel An extendable utility boom assembly for assisting fire-fighting operations performed from a semi-submersible service vessel upon an offshore platform is disclosed. The boom assembly is moved to operating position by means of a carriage assembly which is m... | 06/28/1983 |
| 4339225 | Power shovel crowd drive assembly A crowd drive assembly for a power shovel is described. The power shovel includes a main frame, a boom connected at the lower end thereof to the main frame, a dipper handle pivotally connected to the boom and a dipper connected to the dipper handle. A rac... | 07/13/1982 |
| 4297815 | Power arm fitted with coupling devices for a member provided to control its position The invention relates to a power arm comprising four faces, two of which being constituted by plates, which arm is mounted for pivotment about an axis and with respect to a structure, and is fitted with the coupling lug of a jack comprising a pivoting axi... | 11/03/1981 |
| 4285629 | Fire fighting boom assembly for service vessel An extendable utility boom assembly for assisting fire-fighting operations performed from a semi-submersible service vessel upon an offshore platform is disclosed. The boom assembly is moved to operating position by means of a carriage assembly which is m... | 08/25/1981 |
| 4260322 | Integral box section boom arm A boom arm of a boom assembly is formed of a pair of side walls integrated into a box boom structure where the top and bottom plates are roll formed with transition edges providing a weld bed for welds attaching the side walls to the top and bottom plates... | 04/07/1981 |
| 4193734 | Boom for backhoe with internally disposed hydraulic feed lines A lifting machine boom having two side walls maintained in spaced relationship to each other by a bottom wall and a top wall and a median reinforcing member dividing the interior of the boom into the first and second longitudinally extending chambers. One... | 03/18/1980 |
| 4185945 | Cylinder mounting A shovel linkage for a hydraulic excavator includes boom rails having pivot means in one end for pivotal connection to an excavator and cross tubes extending between the rails near the pivot means and having pivot joints provided thereon for connection of... | 01/29/1980 |
| 4175907 | Shovel linkage A shovel linkage for a hydraulic excavator or the like has spaced parallel boom link rails which are coplanar with associated spaced parallel stick link rails and pivotedly connected thereto by means of pivot joints provided on the ends thereof. Bucket st... | 11/27/1979 |
| 4162872 | Lift arm assembly A low-profile front end loader vehicle has the bucket located as close to the front wheels as is possible without sacrificing strength and maneuverability. The lift arms are shortened and reshaped in the midportion to lower the low position of the lift ar... | 07/31/1979 |
| 4155470 | Strain reducing transfer member A boom assembly for a loader that is pivotally mounted on a tractor. The assembly includes a pair of boom arms which are pivotally connected at one end of the tractor. The arms are fabricated from two C-channels which are welded together. The arms have al... | 05/22/1979 |
| 4153167 | Cross tube construction A shovel linkage for a hydraulic excavator includes a cross tube having pivot joints, and actuating cylinders for the linkage connected to said pivot joints thereon whereby forces imparted to the linkage by the actuating cylinders will be directly through... | 05/08/1979 |
| 4143783 | Reverse linkage loader bucket arm with enclosed cylinder A reverse linkage loader bucket arm with an enclosed cylinder assembly and wherein a loader bucket is pivotally mounted on the arm and the cylinder assembly induces the pivotal action. The lift or support arm for the bucket is hollow along its longitudina... | 03/13/1979 |
| 4134507 | Flexing beam assembly A flexing beam assembly includes an elongated beam having a construction sufficient for bending under load and defining a neutral plane of zero stress therethrough, a bracket having first and second ends, an opening through the first end, a load bearing c... | 01/16/1979 |
| 4034998 | Apparatus for mounting and dismounting attachments A mounting apparatus for releasably mounting attachments on a vehicle body, the apparatus comprising a bracket for securing to the vehicle body and a connecting member for securing to an attachment for the vehicle, the bracket comprising two vertically sp... | 07/12/1977 |
| 4034876 | Boom construction and method for making same An excavator boom has attachment means formed on opposite ends thereof for attachment to a vehicle and to a work implement. The boom comprises a pair of continuous and uninterrupted upper and lower plates and a pair of side plates, all secured together by... | 07/12/1977 |
| 4004855 | Articulated joint including seals maintained by wedge A first member is disposed between and pivotally connected to a pair of spaced apart parallel portions of a second member through means of a pivot pin extending through axially aligned holes respectively located in the first member and in the parallel por... | 01/25/1977 |
| 3985250 | Vehicles for taking on, transporting, and discharging a load A self-loading vehicle having an elongated horizontal frame to one end of which is connected a vehicle-propelling structure while at the other end region of the frame there is a bell crank structure pivoted to the frame for turning about a bell crank axis... | 10/12/1976 |
| 3963134 | Machine having a dual function jib A dual function machine having a frame and a boom and means for adjusting the relative position of the frame and the boom, the frame having two mounting points each co-operable with a respective coupling on the boom to mount the boom on the frame in two d... | 06/15/1976 |
