Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 6722505 | Rotary adjustable dirt/sand/rock separator Aggregate mixtures such as dirt, sand, rock, concrete, etc. are separated into piles according to size by continuous agitation of the mixture and by gravitational and centrifugal forces exerted thereon. A container for the material, such as the bucket of a backhoe, ... | 04/20/2004 |
| 6658769 | Self-cleaning hydraulic clam bucket A bucket of a type designed to attach to the stick of an excavator, using pre-existing pins. The bucket is powered by a hydraulic cylinder, the lines of which attach to excavator controls. Striker forks are mounted onto the stick of the excavator at a pre... | 12/09/2003 |
| 6375012 | Segregator bucket A segregator bucket comprises an open-fronted shell including a pair of opposed sidewalls and a rear wall, the rear wall including a plurality of curved, transversely spaced primary ribs defining spaces therebetween, a cage member being mounted in the she... | 04/23/2002 |
| 6347464 | Self-cleaning hydraulic clam bucket A clam bucket of a type designed to attach by way of a pin (20) through vertical lugs (92) to the stick of an excavator making the attachment process fairly simple. These vertical lugs (92) are part of the rotational housing (32) assembly which, in conjun... | 02/19/2002 |
| 6289613 | Ejector mechanism for an excavating wheel used in a dredging operation and associated method An ejector mechanism (20) adapted for use on a dredging apparatus (10) to remove silt from under the surface of a body of water and associated method, the dredging apparatus being operative in a forward and reverse direction and including first (32) and s... | 09/18/2001 |
| 6269560 | Sweeping assembly for excavating machines and the like A sweeping assembly for a machine having a handle generally comprising a first implement pivotally connectable to the handle; a strut assembly including a first arm member operatively connectable to the handle, a second arm member and a spring device oper... | 08/07/2001 |
| 6052926 | Bucket for a material handling apparatus A bucket for a material handling apparatus which includes a bottom wall, a top wall and a pair of parallel side walls which connect the top wall to the bottom wall. The walls of the bucket define a housing having a chamber, a front opening and a rear open... | 04/25/2000 |
| 5940996 | Material ejecting loader bucket The present invention is directed toward a loader bucket which has a back bucket assembly, a front bucket assembly that pivotably mounts to the back bucket assembly forming an extension thereof in the closed position and an actuator for pivoting the front... | 08/24/1999 |
| 5907915 | Ejector mechanism for a silt removal excavating wheel An ejector mechanism operates to force silt material from individual chambers in a rotating wheel of a silt removal machine. The rotating wheel removes the silt material from under a shallow body of water by collecting it in individual chambers of the rot... | 06/01/1999 |
| 5903989 | Overload protector mechanism for shield mechanism of excavating wheel An overload protector mechanism provides protection for an excavating wheel shield mechanism so that if a large foreign object becomes lodged between the excavating wheel and a portion of the shield arrangement the shield mechanism can move out of the way... | 05/18/1999 |
| 5839212 | Ejector apparatus for an earth moving scraper bowl A pair of links disposed at opposite sides and rearwardly of a scraper ejector panel pivotly support the panel from the upper limit of the bowl side walls and maintain it in substantially upright position as it moves forwardly in a downward arcuate path o... | 11/24/1998 |
| 5702227 | Ejector bucket An ejector bucket includes a bucket frame, an ejector plate, and two actuating cylinders. The bucket frame has opposing side walls and a bottom wall extending between the side walls. The ejector plate is located within the bucket frame, and is movable bet... | 12/30/1997 |
| 5603382 | Shovel attachment with ejector blade for tractors This invention is an improved shovel attachment adapted for being mounted by the customary three-point hitch connection with a tractor enabling the shovel attachment to be carried on the tractor and raised or lowered by the preexisting hydraulic control m... | 02/18/1997 |
| 5581916 | Excavating, sieving and grading device for working crawler Disclosed is an excavating, sieving and grading device for a working crawler arranged such that each pair of first and second right and left legs 14, 14a and 17, 17a are vertically disposed to a bucket main body 7, the first right and left legs are connec... | 12/10/1996 |
| 5511329 | Backhoe mounting mechanism A mechanism for mounting an earthworking implement such as a backhoe apparatus to a mobile frame of an off-highway machine. The mounting mechanism includes a support attachment that is connected to the frame for movement about a generally vertical pivot a... | 04/30/1996 |
| 5501024 | Power bucket A bucket for power shovels is disclosed having a first bucket half and a second bucket half. Each bucket half includes a pair of spaced sidewalls and an endwall extending between the sidewalls which forms a scoop. The bucket halves are pivotly secured tog... | 03/26/1996 |
| 5348361 | Tree mover This invention relates to a tree mover for relocating small trees. The tree mover is designed to dig a hole to receive a tree having a root ball, dig up a tree and deposit a tree in a hole. The tree mover comprises loader buckets having concave inner surf... | 09/20/1994 |
| 5241764 | Bucket assembly with screening function A bucket assembly comprising a bucket member connectible to a bucket stick (7) and having two side walls (6, 6'), a curved wall, and a bottom wall (4) forming an extension of the latter, as well as a screening member (2) articulated to the bucket member (... | 09/07/1993 |
| 5234062 | Automatic evacuation drilling bucket An automatic evacuation drilling bucket comprises a follower formed with a working space for receiving a blade member which is capable of coming in contact with an osculating arm, the working space having upper, lower, transition and receiving compartment... | 08/10/1993 |
| 5141384 | Multi-purpose articulated drag arm digging and hauling vehicle An articulated U-shaped multi-purpose vehicle particularly adapted for underground digging and hauling comprising: a digging component having a U-shaped frame having opposing sides and front ends connected by a front piece, and rear ends defining an open ... | 08/25/1992 |
| 4937956 | Ocean floor dredging A system of ocean floor dredging comprises a first vessel, two rotatable rollers on the vessel, a third roller lying on the ocean floor, and an endless net extending around the three rollers.... | 07/03/1990 |
| 4702023 | Cutter wheel for a dredge A cutter wheel for a cutter wheel type dredge has a pair of axially spaced wheel parts each carrying peripherally mounted scoops and a centrally mounted hopper. The scoops have open sides, bottoms and rear ends and the hopper has open sides with which the... | 10/27/1987 |
| 4397106 | Dredge bucket wheel structure An improved bucket wheel for a dredge having a flush jet arrangement for clearing the buckets of sticky material, an improved divider arrangement for preventing entrance of oversized objects into the buckets and means for expelling air trapped in buckets ... | 08/09/1983 |
| 4393087 | Process for the production of a floating aquatic food pellet A process for the production of a floating aquatic food pellet is disclosed which avoids the use of extrusion-expansion equipment to provide floatability. Conventional pelleting equipment may be used to produce a pellet from farinaceous-proteinaceous mixt... | 07/12/1983 |
| 4371307 | Hydraulic bucket cleaner Disclosed is an apparatus for cleaning the interior of a digging bucket pivotally mounted on an articulated boom. The apparatus comprises a pair of struts pivotally mounted on a proximal segment of the articulated boom, a scraper mounted at the distal end... | 02/01/1983 |
| 4326347 | Narrow ditch trencher A trencher for escavating narrow channels in soil comprises a power driven wheel rotating about a transverse, horizontal axis and a plurality of buckets disposed about its periphery. The wheel includes a pair of circular gear racks disposed inwardly from ... | 04/27/1982 |
| 4324056 | Wiping device for a ditch digging machine A device for wiping or removing stones, or the like, especially intended for a ditch digging machine, having at least one digging blade which is mounted on a horizontally disposed, rotatable shaft, includes a wiper endpiece mounted on the shaft, which is ... | 04/13/1982 |
| 4197662 | Means for driving the back walls of a bucket excavator Means for driving the back walls of the buckets of an excavating wheel having a plurality of circumferentially arranged digging buckets. Each digging bucket is provided with a pivotal back wall mounted on the excavating wheel. The excavating wheel is rota... | 04/15/1980 |
| 4179829 | Trenching machine A high speed trenching machine has a rotatable digging unit with a rim assembly symmetrically constructed relative to a flat center ring member and includes an outer peripheral spoil receiving section comprised of a pair of side by side annular channel wa... | 12/25/1979 |
| 4162584 | Excavating wheel with cam assisted bucket wall ejector An excavating and loading system is disclosed which includes a vehicle with an excavating wheel assembly at the front. This wheel assembly includes plural excavating wheels each comprising a plurality of digging buckets having a wall supported for pivotal... | 07/31/1979 |
| 4156977 | Conveyor folding and moldboard operation for excavating and loading systems An excavating and loading system is disclosed which includes a vehicle with an excavating wheel assembly, at the front and a plurality of conveyors toward the rear. The excavating wheel assembly comprises individual excavating wheels including a plurality... | 06/05/1979 |
| 4155181 | Conveyor folding and moldboard operation for excavating and loading systems An excavating and loading system is disclosed which includes a vehicle with an excavating wheel assembly at the front and plurality of conveyors toward the rear. The excavating wheel assembly comprises individual excavating wheels including a plurality of... | 05/22/1979 |
| 4144980 | Universal ejector bucket An ejector bucket for mounting on a front end or backhoe loader vehicle, provided with an ejector actuated by a mechanism that does not protrude from the bucket walls. The actuating mechanism is contained within a small area behind the ejector and is atta... | 03/20/1979 |
| 4051614 | High capacity loader blade A dozer blade with loading capabilities includes a curved plate or blade for cutting into the soil and to which is secured a pair of laterally spaced arms pivotally supporting a rotatable assembly comprising a load plate extending generally radially from ... | 10/04/1977 |
| 4032015 | Bucket cleaner and control for a digging machine A cleaning device for attachment to the dipper stick of a backhoe-type excavator. A blade member is slidably affixed to the pivoted end of the dipper stick and can be retracted clear of the path of travel of the backhoe bucket as the bucket is curled and ... | 06/28/1977 |
| 3975843 | Portable power digging tool A power spade which is hand operated by one man and does the work of a common pick and shovel is disclosed. The power spade is designed to operate in confined and restricted areas where larger wheeled or track-conveyor power shovels, ditch diggers, trench... | 08/24/1976 |
