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.
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 |
| 8186763 | Road milling machine The invention relates to a road-milling machine which has a ladder 11 to allow the driver's position 7 of the civil engineering machine to be climbed to easily. The ladder is mounted on one 1B of the two longitudinal sides of the frame 1 ... | 05/29/2012 |
| 8167378 | Auxiliary drive A construction machine for the treatment of ground surfaces includes a machine frame, a drive motor, a work drum supported from the machine frame and including exchangeable tools fastened to the work drum, a belt drive and an auxiliary drive. The belt drive includes... | 05/01/2012 |
| 8118369 | Milling drum for a construction machine, construction machine as well as gearbox unit for a milling drum In a milling drum (2) for a construction machine, in particular a road milling machine (1) or a recycler, with an interchangeable milling tube (4) arranged coaxially to the axis (20) of the milling drum, where the milling tube (4) ... | 02/21/2012 |
| 7976106 | Self-propelled civil engineering machine and in particular a road-milling machine, road recycler or road stabilizer The invention relates to a self-propelled civil engineering machine, in particular a road-milling machine, a road recycler, or a road stabilizer, having a frame carried by a set of running gear, a working unit for performing work required for the civil engineering o... | 07/12/2011 |
| 7922255 | Auxiliary drive A construction machine for the treatment of ground surfaces includes a machine frame, a drive motor, a work drum supported from the machine frame and including exchangeable tools fastened to the work drum, a belt drive and an auxiliary drive. The belt drive includes... | 04/12/2011 |
| 7918512 | Automotive machine for producing carriageways In an automotive machine (1) for producing carriageways by stabilizing insufficiently stable soils or by recycling road surfaces, with a machine chassis (4) supported by a running gear (2), a working drum (20) mounted to pivot in relation... | 04/05/2011 |
| 7901011 | Milling drum for a construction machine, construction machine as well as gearbox unit for a milling drum In a milling drum (2) for a construction machine, in particular a road milling machine (1) or a recycler, with an interchangeable milling tube (4) arranged coaxially to the axis (20) of the milling drum, where the milling tube (4) ... | 03/08/2011 |
| 7810888 | Portable rock crusher and scarifier A portable rock crusher and scarifier for in-situ and on-site crushing, milling, grinding and preparation of road beds having a crusher frame defining a crusher channel journaling a reversibly rotatable arbor carrying plural automatically centering tooling implement... | 10/12/2010 |
| 7665806 | Containment wall closure device for milling machine cutter drum assembly A closure device for a containment wall shaft opening is for a milling machine cutter drum assembly including a drum and a drive shaft for rotating the drum, the shaft extending through the wall opening to connect the drum with a mainframe and the shaft and or wall ... | 02/23/2010 |
| 7644994 | Construction machine for machining floor surfaces In a construction machine 1 for the treatment of ground surfaces, comprising a chassis 2 carrying a machine frame 4, a drive motor 6, a work drum 8 supported on the machine frame 4 and having exchangeable tools 14 fas... | 01/12/2010 |
| 7438364 | Scraper device for milling drums of a construction machine In a scraper device for a milling drum (2) mounted in a construction machine, with a scraper blade (10) arranged in a height-adjustable manner behind the milling drum (2) when seen in the direction of travel, which can glide on the surface (3... | 10/21/2008 |
| 7331636 | Electric milling machine A milling machine comprising a housing including a frame, a front wheel assembly supporting the housing, at least a first rear wheel assembly and a second rear wheel assembly supporting the housing, a milling drum mounted within the housing and extending below the h... | 02/19/2008 |
| 7290360 | Excavation apparatus An excavating apparatus having a prime mover with a longitudinal centerline and a main frame with an engine, a ground drive system and an excavation boom operatively attached thereto wherein the excavation boom has a first end and a second end. The first end of the ... | 11/06/2007 |
| 7284345 | Milling device for floors, rock, excavated material or other material The milling apparatus (1) has a bucket with a receiving chamber and has a milling unit with a milling rotor (14). The receiving chamber has a receiving opening (4) and is embodied as a bucket (2). On the bottom of the bucket (2), a... | 10/23/2007 |
| 7281535 | Saw singulation Improved systems and methods for singulating a substrate into a plurality of integrated circuit devices are disclosed. One aspect of the invention corresponds to a fixture that holds the substrate during the dicing process. Another aspect of the invention pertains t... | 10/16/2007 |
| 7235003 | Method and apparatus for grinding of concrete floors A method for dry finishing of a floor surface consisting of concrete, stone, marble, terrazzo, densite or other hard materials is disclosed. The method comprises finishing of the floor surface using a cutting, grinding and/or polishing tool. In the method, a vapor o... | 06/26/2007 |
| 7175364 | Suction device and suction method for the disposal of dust in milling machines Disclosed is an automotive milling machine for machining ground surfaces, comprising an engine frame (2), a movable milling drum (8) which is mounted on the engine frame (2), at least one conveying device (14, 18) which is arranged on the... | 02/13/2007 |
| 7152348 | Excavation apparatus An excavating apparatus having a prime mover with a longitudinal centerline and a main frame (30) with an engine, a ground drive system and an excavation boom operatively attached thereto wherein the excavation boom has a sub-frame (112) with a first e... | 12/26/2006 |
| 7144087 | Systems and methods for milling paving material with increased stability, support, and power Systems and methods for milling paving material. A self-powered milling system includes a cutting head to mill the paving material. The cutting head is powered by a milling system motor that speeds up production and enables the milling of very thick asphalt in a sin... | 12/05/2006 |
| 7073975 | Slot cutting apparatus and method An apparatus for cutting slots in pavement has a slot cutting assembly with several pairs of rotating blades mounted to a vehicle and vertically adjustable relative to the vehicle. A lift system moves the vehicle between a first position wherein the lift is not enga... | 07/11/2006 |
| 7070244 | Road milling machine This invention is road milling machine with a chassis (13) having at least four wheels of which the front four wheels (14) are assigned to a parallelogram steering axle (23). The parallelogram steering axle (23) guides the front wheels ( | 07/04/2006 |
| 7036252 | Actuating coupler for heavy machinery peripheral attachments A locking device to hold an asphalt milling machine on a loader bucket to increase stability and accuracy of the milling machine and increase the speed at which the loader bucket can transition between directing the milling machine and picking up ground asphalt.... | 05/02/2006 |
| 7029370 | Grinding machines for depression patterns along roads In certain preferred embodiments, the present invention provides a grinding machine for creating depression patterns in a surface such as asphalt or concrete. The depression pattern may be a rumble strip for alerting drivers who drift off a driving lane, or may be f... | 04/18/2006 |
| 7029072 | Modified rumble strip cutter A rumble strip cutting machine having a drum that can be shifted from one side of the machine to the other. The machine includes a piston wheel that imparts an up and down motion to the frame so that rumble strips can be cut at desired intervals as the machine is dr... | 04/18/2006 |
| 6948779 | Cutting roller for a continuously operating surface miner A mining member designed as a cutting roller for a continuously operating surface miner for mining mineral raw materials of high strength. The roller body is equipped for this purpose with mini-disk bits of identical design. Since different conditions occur over the... | 09/27/2005 |
| 6923508 | Stripping means for milling rolls of a construction machine as well as a construction machine and a method In a stripping means for milling rolls (2) of a construction machine, comprising at least one stripping blade (8) arranged behind the milling roll (2) in traveling direction so as to be adjustable in height, which is able to glide over the surfa... | 08/02/2005 |
| 6892834 | Piloted drill barrel and method of using same A hard rock drill barrel has a barrel portion with a downhole hammer drill disposed therein at the barrel's periphery. A pilot portion, in substantial axial alignment with the barrel but having a smaller diameter, extends distally from the barrel for inserting into ... | 05/17/2005 |
| 6890037 | Cutting drum web deflector A cutting device including a cutting drum, a motor housing, a structural web extending between the motor housing and the cutting drum, and a structural member attached to the cutting drum adjacent the web. The structural member has a structural surface including an ... | 05/10/2005 |
| 6843535 | Method of milling depressions and machine to perform same A camming surface, having a plurality of camming groups, is moved along, or relative to, the surface of the roadway to regulate installation of depressions. Each camming group is capable of regulating elevation of a rotary cutting tool where the rotary cutting tool ... | 01/18/2005 |
| 6755482 | Cutting machine with flywheel gearbox design and method for use A cutting machine for cutting depressions in a road surface. The cutting machine includes a rotatable cutting drum connected with a drive device for rotating the cutting drum and an engaging device for moving the cutting drum out of and into contact with the road su... | 06/29/2004 |
| 6719485 | Compaction roller and method for rubblizing conrete A concrete rubblizing apparatus includes a non-circular multi-lobed roller connected to an axle on a wheeled frame such that the roller rolls upon the ground and the frame is towed by a tractor. Each lobe of the roller includes a set of cleats extending across a wid... | 04/13/2004 |
| 6692082 | Separating and support element for a tool holder A separating- and support element (20, 21) for milling drums (1) on milling machines for coarse, uneven surfaces of concrete or asphalt, or for the removal of street markings, in which in a tool holder (2), shafts (4) are positioned between two flanges (5... | 02/17/2004 |
| 6640851 | Shaft assembly for stump cutter A stump grinding apparatus of the type adapted to be mounted in a frame on the end of a boom is described. The apparatus comprises a grinding wheel mounted between hubs keyed to a shaft that is connected though belts and gears to a source of motive power,... | 11/04/2003 |
| 6634719 | Ice scruffer An ice scruffing device for scruffing a covering of ice on a ground surface to improve the ability of the ice to retain de-icing chemicals on its surface. Paddles are mounted radially about a drum that is mounted substantially parallel to the ground surfa... | 10/21/2003 |
| 6623083 | Equipments for cold milling of the road surface Improvements to cold cutting equipment of road surfaces with independent side protection guards, integral with skids resting against the ground complete with curved slots with concave parts facing a central point, substantially coinciding with the center ... | 09/23/2003 |
| 6494542 | Apparatus for roughening concrete slat surfaces A milling apparatus for preparing concrete floor surfaces consists of rear wheel motorized cart connected in tandem to a traction milling machine having a frame mounted drum for milling engagement with the floor and forward and rearward means for vertical... | 12/17/2002 |
| 6485227 | Concrete breaking apparatus A concrete breaking apparatus includes a wheeled support assembly having an open end to accommodate the variable positioning of an impact roller therebetween and a closed end opposite the open end. A frame having opposing longitudinal arms connected near ... | 11/26/2002 |
| 6454360 | Ground-working tools for use in power rakes A power rake attachment includes a rotary drum and a plurality of bit assemblies mounted on an outer surface of the drum. Each bit assembly includes a hollow holder affixed to the outer surface, and a cutter bit disposed in the holder. The cutter bit incl... | 09/24/2002 |
| 6438874 | Hydraulic rotary grinder for attachment to construction machinery A hydraulic rotary grinder for attachment to construction machinery such as an excavator, consisting of a rotating drum having a hollow core and a plurality of attached replaceable grinding tips. A hydraulic motor rotates the drum, and is secured within t... | 08/27/2002 |
| 6227620 | Forward mounted asphalt road mill apparatus A compact, easily transportable, surface preparation or road mill apparatus which includes a road mill housing or surface treatment unit having a cutter drum powered by its own power source. The apparatus also includes a mounting device for attachment of ... | 05/08/2001 |
