| Patent Number |
Title Of Patent |
Date Issued |
| RE33131 |
Motorized dumping vehicle |
December 19, 1989 |
| A motorized dump-type vehicle is provided having a chassis frame, a gasoline engine mounted on said frame, a dump container pivotally mounted on the front of said frame and a hydraulic system enabling said container to be raised and lowered by a hydraulic cylinder and said vehicle to be |
| D314578 |
Material spreader frame |
February 12, 1991 |
|
| D309904 |
Distributor for a concrete screed |
August 14, 1990 |
|
| D306963 |
Concrete finishing screed bar |
April 3, 1990 |
|
| 4931008 |
Quick disassembly screed construction |
June 5, 1990 |
| A vibrating portable screed of the type made up of sections having screed blade means at the base and a ridge portion at the top employs a turnbuckle assembly in the ridge portion held together by a removable pin and other removable pin connected means in the base portion thereby ena |
| 4892438 |
Screed construction and method |
January 9, 1990 |
| A frame member for use as a portion of an open portable vibrated screed frame comprises a length of metal rod with metal tubes spaced along the length of the rod and bent in a zig-zag configuration such that each tube and a portion of the rod within each tube is bent together thereby |
| 4877104 |
Braking system for a motorized dumping vehicle |
October 31, 1989 |
| A braking system for a dumping vehicle having a hydraulic drive system and a hydraulic dump container is disclosed. A two-section control valve is connected by conduit to a hydraulic fluid reservoir and a hydraulic motor. The control valve includes a first valve assembly for controlling |
| 4869618 |
Distributor for concrete screed, and screed assembly comprising same |
September 26, 1989 |
| A distributor frontally mountable on a screed to minimize or eliminate the manual distribution and leveling of freshly poured concrete which is otherwise required prior to screeding. The distributor comprises a rotatable body bearing an array of circumferentially and axially staggered |
| 4859115 |
Blade mounting apparatus, and blade comprising same |
August 22, 1989 |
| The present mounting apparatus includes a pair of retaining tabs secured to an upper surface of a blade adjacent leading corners. Each retaining tab includes a side wall, an end wall and a cover plate which forms a cavity with the blade upper surface. A pair of retaining tabs are secured |
| 4848959 |
Retaining clip and blade mounting apparatus |
July 18, 1989 |
| The present mounting apparatus includes a pair of retaining tabs secured to an upper surface of a blade adjacent leading corners. Each retaining tab includes a side wall, and end wall and a cover plate which forms a cavity with the blade upper surface. A pair of retaining tabs are secure |
| 4832525 |
Double-bearing shaft for a vibrating screed |
May 23, 1989 |
| A portable vibrating screed includes a driven, vibratory rotatable shaft assembly mounted on an elongated frame equipped with means for screeding concrete. The shaft assembly includes a plurality of bearing assemblies spaced along the length of the shaft. Each bearing assembly includes a |
| 4806047 |
Screed frame and stiffening apparatus |
February 21, 1989 |
| The present invention includes a concrete screed frame having a first screed blade, a second screed blade and a camber top member arranged in a triangular cross section. A plurality of frame supports are transversely mounted between the first and second screed blades. A plurality of brac |
| 4753578 |
Abrasive fluid pumping apparatus |
June 28, 1988 |
| A pumping apparatus is formed by a flexible, metal wall structure surrounding and defining a hollow interior chamber and with a mechanism to compress and expand the structure to create a pumping action through an opening to the chamber. The pumping apparatus forms part of an overall |
| 4722638 |
Screen with frontal distribution unit |
February 2, 1988 |
| A concrete screed comprising an elongate frame with a first longitudinally extending screed plate connected to a leading portion of the frame, and a second longitudinally extending screed plate connected to the frame rearwardly of the first screed plate. A plow body is mounted on the fra |
| 4701071 |
Portable screed |
October 20, 1987 |
| A concrete screed comprising an elongated beam with top and bottom flat surfaces joined to an intermediate hollow, tubular cylindrical section, formed of a plurality of interconnected separable beam units. Each adjacent pair of beam units is interconnected by a tongue body of a size |
| 4676691 |
Dual rotary trowel |
June 30, 1987 |
| A concrete troweling machine is illustrated as having two sets of troweling blades with a mechanism for setting the tilt of individual blades in a rotor assembly and a separate mechanism controlled by the handle position for progressively changing the tilt of individual blades during eac |
| 4657431 |
Non-uniform size particulate spreader |
April 14, 1987 |
| A material spreader for handling both rock and powder-like materials incorporates a hopper assembly with a hydraulically motor driven side discharge as compared to the conventional bottom discharge. The hopper assembly in one embodiment is supported directly above the surface being c |
| 4650366 |
Portable screed |
March 17, 1987 |
| A lightweight and portable screed utilizes an extruded beam element as the principal structural element. The extruded beam element provides a mounting surface for both a handle and a gasoline engine, a housing for a vibrating shaft driven by the engine, a screed surface vibrated by the |
| 4645264 |
Motorized dumping vehicle |
February 24, 1987 |
| A motorized dump-type vehicle is provided having a chassis frame, a gasoline engine mounted on said frame, a dump container pivotally mounted on the front of said frame and a hydraulic system enabling said container to be raised and lowered by a hydraulic cylinder and said vehicle to be |
| 4607979 |
Hydraulically-powered rock spreader |
August 26, 1986 |
| A material spreader for spreading large rock over a wet concrete or other surface utilizes a pair of hoppers which are driven back and forth on a bridge support spanning the surface. A gasoline engine mounts above the hoppers and furnishes power for a reversibly-controllable hydraulic ho |
| 4556339 |
Rotary trowel blade assembly |
December 3, 1985 |
| A trowel blade assembly attaches to the drive arm of a concrete troweling machine by means of a mounting bar which is bolted to the drive arm. The mounting bar in turn is received by a U-shaped bracket which is bolted to the trowel blade and incorporates recesses formed so as to cover th |
| 4555200 |
Hydraulically-powered material spreader |
November 26, 1985 |
| A material spreader for spreading a topping material over a wet concrete surface utilizes a pair of hoppers which are driven back and forth on a bridge support spanning the surface. A gasoline engine mounts above the hoppers and furnishes power for a reversibly controllable hydraulic hop |
| 4461341 |
Cooling system for hydraulic powered apparatus |
July 24, 1984 |
| An improved apparatus, for cooling hydraulic fluid in a small horsepower internal combustion gasoline engine powered hydraulic drive system, mounts the blower and oil pump concentric of and so that they are driven by the engine drive shaft and includes a finned tube heat exchanger mounte |
| 4397626 |
Vibrating screed and curb-forming apparatus |
August 9, 1983 |
| A lightweight portable concrete screed utilizes an elongated open frame supported on opposed forms and adapted to screed an entire width of concrete formed road and simultaneously form associated curbing on both sides of the road. |
| 4397580 |
Vibrating screed and curb/gutter forming apparatus and method |
August 9, 1983 |
| A lightweight, portable, vibrating-type concrete screed utilizes an elongated, open frame structure, is adapted to being winched automatically to screed a concrete-formed road and simultaneously form and smooth associated curbing and guttering with improved vibrator and smoothing mea |
| 4388017 |
Troweling blade rotor assembly |
June 14, 1983 |
| An improved concrete troweling blade rotor assembly of the type in which the blades rotate unidirectionally and do not tilt around the blade support axis is provided with means enabling the blade support arms to be independently adjusted with respect to an inner, transverse, horizontal |
| 4386901 |
Portable vibrating concrete screed |
June 7, 1983 |
| A lightweight and portable screen mounts a gasoline engine which drives a vibrating shaft and is adapted with handles for being used in "wet" or "mud" screeding without requiring forms as guide supports. |
| 4349295 |
Structural ridge member for vibrating concrete screeds |
September 14, 1982 |
| An improved frame construction for a portable, vibrating-type concrete screed incorporates a specially designed hollow ridge tube extending along the apex of an elongated open frame of triangular cross section and providing means for adjusting relative angular positions of adjoining |
| 4335976 |
Winch apparatus for vibrating concrete screed |
June 22, 1982 |
| A vibrating concrete screed having a motor driven vibrating shaft in an elongated frame mounts at each end of a single or interconnected plural frames a detachable winching unit driven by the shaft through a fluid motor. The screed may be winched automatically, at varying angles, at |
| 4320986 |
Motor powered rotary trowel |
March 23, 1982 |
| A motor powered rotary trowel employs a plurality of radially arranged trowel blades which can be adjustably tilted on their support arms in either direction and are mounted on a drive shaft which can be driven in either direction thereby enabling the weight of the trowel to be selec |
| 4261694 |
Air vibrated/winched concrete screed |
April 14, 1981 |
| A vibrating concrete screed utilizes a plurality of air-driven vibrators which are mounted on an elongated frame in a manner designed to achieve a unique vibration pattern throughout the length of the frame. An air-driven winch on the screed enables the screed to be winched automatically |
| 4253778 |
Winch apparatus for vibrating concrete screed |
March 3, 1981 |
| A vibrating concrete screed having a motor driven vibrating shaft in an elongated frame mounts at each end of a single or interconnected plural frames a detachable winching unit driven by the shaft through a fluid motor. The screed may be winched automatically, at varying angles, at |
| 4213749 |
Portable vibrating concrete screed |
July 22, 1980 |
| A lightweight and portable vibrating screed is made up of a base frame unit which mounts a variable speed drive engine and to which other pivotal sub-frame units may be attached for extending the length of the screed. A shaft is supported with a substantial amount of play between the sha |
| 4195809 |
Screed bar support stake and method |
April 1, 1980 |
| A screed bar support stake and method are uniquely adapted to concrete screeding operations utilizing a vibratory-type screed. The stake is formed with means which allow it to be located after the concrete has been poured and is also adapted with means enabling the stake to be removed fo |
| 4191360 |
Concrete reinforcement mesh lifting tool |
March 4, 1980 |
| A tool for lifting concrete reinforcement wire mesh comprises a lever and support structure enabling the pivot point to be adjusted vertically as well as along the length of the lever. |
| 4030873 |
Vibrating concrete screed |
June 21, 1977 |
| A lightweight and portable vibrating screed is provided with an elongate open structure frame which may be made up of a plurality of interconnected frame units. A shaft is supported for rotation in spaced bearings along the frame and extends outwardly beyond the bearings at each end of t |
