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7241211 |
Guard for a moving tool
Abrading and cutting devices such as saws include waste containment systems and methods to improve removal of slurry or other contaminants from a work area during operations, and separation of...
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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...
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7000605 |
Engraver apparatus and method
A concrete engraver apparatus including a carrier for use with a hand-held engraver. The hand-held engraver is detachably mounted to the carrier. The carrier has wheels and a handle attached to an...
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6981494 |
Telescoping guide for a concrete saw
A telescopic guide for a concrete saw includes a plurality of sleeves, a wheel and mounting plate.
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6945608 |
Power take off assembly, drive assembly and saw using power take off assembly
A power takeoff assembly, a drive assembly, a saw and a kit for a saw include a drive plate and drive shaft, for example for mounting to a fly wheel, and a bell housing for mounting to an engine...
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6935703 |
Concrete cutting saw having high and low speed blade arbors
A concrete cutting saw ( 10 ) includes a wheeled main frame ( 12 ) on which a blade support frame ( 14 ) is mounted for movement between upper idle and lower cutting positions. Low and high speed...
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6764139 |
System for and method of demolition
A rugged demolition system, and method for its use, for pulling up horizontal structures such as concrete or asphalt and breaking them into pieces, pulling over and breaking up vertical structures...
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6755481 |
Cutting blade and method for cutting pavement in a circle
A method for cutting pavement of an asphalt road or a concrete road in a circle for installation of a manhole, by using a cutting blade which has a pavement cutting edge serves as a tip for cutting...
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6709064 |
Method and device for detaching or cutting out an embedded manhole frame
A method for detaching a manhole frame ( 7 ) that is embedded in a road surface, wherein the manhole frame ( 7 ) is cut horizontally starting from the inside, without significant exposure of the...
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6592289 |
Technique for contraction joints in concrete pavement
To make a concrete roadway; a continuous section of concrete is poured and cut at an angle of between 5 degrees and 45 degrees downwardly in the direction of traffic flow, to form an angled cut...
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6582026 |
Machine for cutting pavement
A machine for cutting pavement, street curbs, bridge components, or sidewalks. The cutting apparatus is mounted on a truck body for transport and can be extended from the truck and supported...
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6547337 |
Trencher with foldable rock saw wheel
A trencher with a rock saw wheel has a foldable section that may be pivoted to one side during transport of the trencher on a truck or trailer, in order to decrease the overall height of the...
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6425638 |
Pavement cutter
A pavement cutter that saves construction materials and prevents repaired pavements from subsiding or collapsing includes a first tilting mechanism attached to a front wheel axis as a base for a...
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6390086 |
Mobile concrete saw
A cured-concrete-cutting saw which is sufficiently mobile as facilitates its transport to a work site located within a building, and between work sites within a building, for example, and which is...
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6364419 |
System for working the surface of a road
An assembly is provided for excavating cavities in a road surface for a variety of purposes, among them, the formation of rumble strips, the installation of light reflective road markers, the...
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6343981 |
Vehicle for scraping a floor
A vehicle for scraping a floor has an adjustable blade with various widths mountable thereon and is an appropriate vehicle size for moving through a standard door.
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6318351 |
Waste containment system for an abrading or cutting device
Abrading and cutting devices such as saws include waste containment systems and methods to improve removal of slurry or other contaminants from a work area during operations, and separation of...
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6286905 |
Cutting device with vertical and horizontal movement
A cutting device for performing a cutting operation, which can reduce wasteful cutting, can easily perform an accurate and neat cutting, and can have a long service life. The cutting device...
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6203112 |
Attachable road cutting apparatus
A road cutting apparatus is detachable and connectable to a self-propelled front end loading machine. The cutting apparatus includes a rigid frame structure having a connecting section for...
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6158817 |
Concrete saw machine for grooving above, below, or beside
A machine is disclosed, for making a groove into a ceiling, wall or floor. The machine has a powered truck-like vehicle having a support base and an apparatus mounted on the base. The apparatus has...
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6112736 |
Portable saw with improved disconnectable platform for cutting concrete for controlling cracks
An apparatus for cutting grooves in a green concrete slab having at least one terminating side edge transverse to a broad top surface in a low cost manner is described and includes the following...
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6102022 |
Pavement cutting machine
A pavement cutting machine having a rotary cutting wheel with a generally horizontal axis of rotation where rotation of the cutting wheel is selectively controlled by a clutch on either the drive...
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6099080 |
Dry cutting and grooving apparatus for pavement
In a dry cutting and grooving apparatus for pavement in which blades for cutting or grooving the pavement are covered by a housing which leaves the lower ends of the blades exposed, and in which...
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5941227 |
Portable saw with disconnectable platform for cutting concrete for controlling cracks
An apparatus for cutting grooves in a green concrete slab having at least one terminating side edge transverse to a broad top surface in a low cost manner is described and includes the following...
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5857453 |
Precision slot cutting machine for concrete and asphalt
A precision slot cutting machine for concrete and asphalt pavement includes a self propelled unit with an operator's station and a blade platform is attached to the self propelled unit by a pair of...
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5765926 |
Apparatus for routering a surface and a cutting head and tool piece therefor
Apparatus for routering a surface comprises a pair of independently driven drive wheels and a balance wheel which is freely pivotal to follow a path steered by the drive wheels. A cutting head is...
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5743247 |
Method and apparatus for safe operation of self propelled concrete saw
A concrete saw is provided which utilizes a transmission having both forward and reverse, high and low speed ranges separated by a neutral state. The transmission includes a neutral start switch...
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5725282 |
Adjustable handles for road surface cutting saws
Adjustable handles for road surface cutting saws are disclosed. The handles are elongated tubular members projecting rearwardly from opposite side edge sections of a generally vertically disposed...
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5724956 |
Riding saw for cutting concrete and similar materials
The present invention provides a new and improved rideable power saw for cutting concrete, asphalt, rock and the like. The saw includes a seat for supporting the rider and a mechanical steering...
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5709200 |
Router machine
A router machine for cutting a groove in pavement and the like for repairing cracks includes a pair of frame members mounting a shroud therebetween. A cutter head drive shaft is mounted by the...
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5653509 |
Blockage-protected drive system with a centrifugal clutch, and sawing apparatus driven through said clutch
To prevent overloading of a clutch interposed between a driving, or input shaft (2, 112) and a driven, or output shaft (4, 115) upon blockage of the output shaft while continuous rotary power is...
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5575538 |
Rock saw with centerline conveyor assembly and method of digging a narrow trench
A rock saw has a cutting wheel and a conveyor assembly capable of retrieving automatically essentially all materials excavated by the cutting wheel and of discharging the retrieved materials into...
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5564408 |
Pavement treatment method and apparatus
An improved pavement treatment apparatus and method are disclosed, for example for concrete and asphalt saws, which may include a vacuum apparatus for removing water and slag. The apparatus also...
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5522646 |
Apparatus for cutting free manhole casings in coatings
An apparatus (2) for cutting free cover well curb in coating (4), for instance asphalt coating (10), comprising of a basis part (16) pivotally fastened around a vertical center axis in proportion...
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5452943 |
Concrete cutting machines
A machine (10) for cutting concrete paving or like material is provided having a support frame structure (12), front and rear wheels (14 and 16) and a rotatable cutting blade (20). A pair of...
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5445437 |
Concrete grooving apparatus and method
A concrete grooving apparatus small and light enough to be manually propelled by an operator cuts decorative grooved patterns into a pavement surface. The apparatus includes a linear tracking...
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5429420 |
Pavement cutting saw
A device for cutting cured and uncured (green) pavement including concrete which is capable of cutting a straight groove without the guidance of an operator. The cutting blade is positioned between...
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5421641 |
Powered tool for slicing or shearing roofing material
An apparatus and method for slicing roofing material includes a prime mover in the form of a powered tractor, and a slicing assembly mounted to the rear end of the tractor. The slicing assembly...
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5381780 |
Green and cured concrete
A saw for grooving concrete includes a base supported by plurality of wheels such that a cutting guide of the base may press against the green concrete with a predetermined load. A cutter frame is...
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5269355 |
Cutting wheel for stump-grinding apparatus
A cutting wheel for use in a stump-grinding apparatus that has a reversible disk having an outer diameter. The disk has a generally noncircular hole through the center thereof to register with a...
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5176426 |
Concrete grooving apparatus
An apparatus for cutting a decorative grooved pattern into the surface of hardened concrete, pavement or the like. The patterns are comprised of spaced concentric circles or arcuate segments or...
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5135287 |
Curb cutter
A curb cutter for use by a mobile operator comprises a boom having a saw assembly at one end thereof. The boom is user-movable through vertical and lateral directions so as to place the saw at a...
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5104195 |
Self-propelled apparatus for cutting asphalt and concrete
A self-propelled apparatus for cutting asphalt and concrete which includes a low voltage electric motor for driving support wheels of a carrying frame supporting an engine for driving a cutting...
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4998775 |
Apparatus for precision cutting of concrete surfaces
A concrete cutting machine for making parallel precision linear cuts to repair a joint in a concrete floor. A self-propelled vehicle follows a linear track segment accurately positioned with...
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4974907 |
Pneumatic cutter for concrete and the like
This invention discloses a pneumatic cutter for concrete and the like in which: a suction pipe is provided on a circular arc-shaped case covering the upper half of a disk cutter member driven by...
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4953523 |
Quick release mechanism for the tool of a concrete/asphalt abrader
A quick release mechanism for disengaging the cutting blade of a masonry saw is disclosed. Rotation of a threaded shaft to achieve axial movement through a closed partially threaded split collar...
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4930487 |
Cement cutting blade
An improved circular saw blade assembly for cutting in a single pass a two tier groove in a concrete areaway. The saw blade body having a first row of cutting elements in the form of a metallic...
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4921308 |
Mobile machine suspension system
An improved suspension system for a mobile machine adapted to work a material associated with a horizontal surface includes a frame mounting a prime mover. An arbor shaft extends transversely...
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4869227 |
Process and device for producing deep cuts in concrete or similar material
Process and device for making deep cuts in concrete, reinforced concrete, a masonry or similar structure, involving the use of a circular saw blade (5) and a guide bore (B) made directly next to...
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4848845 |
Steerable self-regulating concrete cutting saw
A self-propelled concrete cutting saw in which the saw and self-propelled platform associated with the saw are both driven by hydraulic motors, with separate motors for each of the two propelling...
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