Assignee: M-B-W Inc.

Location: Slinger, WI
No. of patents: 30

Browse patents
Browse applications

Number	Title	Issue Date
7540336	Vibration isolator for a pneumatic pole or backfill tamper A vibration isolation assembly is provided for use with a backfill tamper. In use, the vibration isolation assembly can be disposed between a handle and a percussion mechanism of the tamper and absorbs kickback forces from the percussion mechanism during backfill ta...	06/02/2009
7204659	Screed bar for vibratory screed A screed bar for a vibratory concrete screed is formed from a long hollow extrusion having generally flat enclosing walls and defining in cross section two triangular sections that share a common interior wall. ...	04/17/2007
7201537	Concrete screed with vibration isolation A vibratory concrete screed includes a vibration isolation system that minimizes the transmission of vibrations to the operator under normal operating conditions, but becomes more rigid during screed control forces applied to the blade through the isolation system w...	04/10/2007
7165469	Shift rod piston seal arrangement for a vibratory plate compactor An easily accessible phase adjustment mechanism for a vibratory plate compactor includes an improved seal arrangement to protect against leakage of internal lubricating oil into the hydraulic cylinder providing fluid pressure to the adjustment mechanism. An easily d...	01/23/2007
7066681	Shaft assembly for a vibratory roller An eccentric shaft assembly for a vibratory roller utilizes a cylindrical tubular shaft that considerably reduces the weight of the assembly, decreases substantially oscillatory shaft deflection during rotation and thereby improves bearing and seal life. The eccentr...	06/27/2006
6988851	Concrete screed with vibration isolation A vibratory concrete screed includes a vibration isolation system that minimizes the transmission of vibrations to the operator under normal operating conditions, but becomes more rigid during screed control forces applied to the blade through the isolation system w...	01/24/2006
6749365	Vibration isolation for a percussion rammer A soil compacting percussion rammer includes an operator handle assembly that is isolated from the main machine frame by a shock absorbing mount oriented to absorb the horizontal components of operating movement of the rammer. In a preferred embodiment, the shock ab...	06/15/2004
6695467	Mixer drum locking apparatus The cylindrical drum of a mortar/plaster mixer is locked in the mixing position by a rotatable pivot arm pivotally attached by one end to an end wall of the drum such that, when the drum is in the mixing position, the arm may be rotated between a locked p...	02/24/2004
5491960	Apparatus for the continuous production of a particulate filled barrier An apparatus for continuously producing a particulate filled bag or barrier. The apparatus includes a frame having terrain engaging members, such as runners. A wound coil of sheet material is mounted on the forward end of the frame, and located to the rea...	02/20/1996
5423628	Winch construction for a vibratory concrete screed A winch assembly is connected to each end of a vibratory concrete screed to move the screed across a concrete slab to be finished. Each winch assembly includes a rotatable drum with a cable wound on the drum. The free end of each cable is connected to a f...	06/13/1995
5387052	Drive mechanism for a vibratory compactor A vibratory compactor includes a frame which carries a soil compacting plate, and a drive mechanism such as a gasoline engine, is mounted on the frame and has a rotatable drive shaft. A pair of eccentricly weighted shafts are mounted for rotation on the f...	02/07/1995
5340233	Pneumatically operated rammer A pneumatically operated percussion apparatus for compacting soil, or other material. The apparatus includes a gear case that supports a percussion unit that is adapted to engage the soil to compact the same. A pneumatically operated motor is mounted on t...	08/23/1994
5244306	Vibratory compactor attachment for mechanical equipment A vibratory compactor attachment for mechanical equipment, such as an excavator or backhoe. The attachment includes a support frame which is pivotally attached to both the boom and the tilt arms of the excavator. One end of the support frame carries a scr...	09/14/1993
5209331	Clutch construction A clutch construction for a reversible walk-behind soil compactor. The compactor includes a frame which carries a soil compacting plate and a drive mechanism, such as a gasoline engine is mounted on the frame and has a rotatable drive shaft. A pair of ecc...	05/11/1993
5170943	High velocity pneumatic device A high velocity pneumatic device having particular use for excavating or dislodging soil. The device includes a body or housing having a passage that connects a source of air under pressure, such as a compressor, to an elongated discharge tube. A valve me...	12/15/1992
5149225	Reversible drive for a vibratory compactor An improved drive mechanism for a reversible walk-behind soil compactor. The compactor includes a frame which carries a soil compacting plate and a drive mechanism, such as a gasoline engine is mounted on the frame and has a rotatable drive shaft. A pair ...	09/22/1992
5140759	Pneumatic device for excavating and removing material A high velocity pneumatic device for excavating and removing material such as soil. The device includes a pressure tube having an inlet connected to a source of gas, such as air, under pressure and an outlet end connected to the distal end of a removal co...	08/25/1992
5096330	Pitch control mechanism for a surface finishing machine A pitch control mechanism for a surface finishing machine. The machine inclueds a series of tiltable horizontal blades carried by a rotor and the blades are adapted to rotate in contact with and finish a concrete surface. The pitch control mechanism for t...	03/17/1992
5062228	Compactor and blade attachment for loader A compactor and blade attachment for a front-end loader. The attachment comprises a compaction drum that is journalled for rotation on the side plates of the frame. A vibratory mechanism is connected to the drum to vibrate the drum and aid in the compacti...	11/05/1991
5051025	Slip form paving machine with outrigger wheel A slip form paving machine including a main frame supported by a front driven steering wheel and a pair of rear wheels that straddle the fore-and-aft center line of the main frame. An open top hopper is mounted on the frame and the lower end of the hopper...	09/24/1991
4991321	Pneumatic device for excavating and removing material A high velocity pneumatic device for excavating and removing material such as soil. The device includes an elongated pressure tube having an inlet end connected to a source of gas, such as air, under pressure and the opposite or distal end is bent and pro...	02/12/1991
4950101	Shaft coupling construction for a vibratory screed A shaft coupling construction for a vibratory screed. The screed includes at least two vibratory shafts which are disposed in end-to-end relation and an end of each shaft is secured within a bore in a sleeve or connecting member. Each shaft is mounted for...	08/21/1990
4927289	Vibratory mechanism for a compaction roller A compaction apparatus including a pair of frames. A compaction drum is mounted for rotation on a first of the frames and resilient isolation mounts interconnect the two frames. A vibratory unit is mounted on the first frme and includes pair of eccentric ...	05/22/1990
4895478	Adjustable handle construction for a compaction apparatus An adjuster handle construction for a soil compactor such as a percussion rammer. The compactor includes a shoe adapted to engage the surface to be compacted and the shoe is driven in a reciprocating path by a drive cylinder which, in turn, is operated by...	01/23/1990
4859114	Directional control system for a riding-type surface working machine An improved directional control mechanism for a riding-type surface working machine. The machine includes a pair of frame sections which are disposed in fore and aft relation. A rotor that carries surface working implements, such as trowel blades, is moun...	08/22/1989
4784519	Directional control mechanism for surface working machine A directional control mechanism for a surface working machine. The surface working machine includes a frame that carries at least a pair of rotors each having a vertical rotatable shaft. Surface working means, including a plurality of radially extending b...	11/15/1988
4779418	Remote control system for a soil compactor A hydraulic operated control system for remotely operating a walk-behind soil compactor. A remotely operated three-position valve is connected to the pressure line of the hydraulic system of the soil compactor and serves to control the flow of hydraulic f...	10/25/1988
4758114	Vibratory concrete screed A vibratory concrete screed composed of a plurality of interconnected sections. Each section includes a series of frame members which are located at an acute angle with respect to the longitudinal axis of the section. Each frame member is generally triang...	07/19/1988
4710055	Riding-type multiple trowel machine A riding-type surface working machine includes a pair of rotors each of which carries a plurality of trowels or surface working members. Each rotor includes a transmission unit and power from the engine is transmitted through each transmission unit to rot...	12/01/1987
4499779	Vibratory compactor A vibratory compactor having forward and reverse movement. The compactor comprises a bottom plate and a pair of standard, single shaft, vibration generating units are mounted in side-by-side relation on the bottom plate and each unit includes an eccentric...	02/19/1985

PatentStorm

Quotables

PatentStorm News

Assignee: M-B-W Inc.