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6609762 |
Walk behind floor stripping machine with hydraulic drive
A hydraulically powered self-propelled stripping machine having an electric motor for providing oscillating motion to a cutting head member. The electric motor driving a hydraulic pump for pumping...
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6378951 |
Vibratory pavement breaker
An electrohydraulic pavement breaker system having cavities ( 28, 30 ) which are filled with hydraulic fluid (oil) or gas, and which provide mass spring system which is resonant at a frequency...
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6033031 |
Milling machine with vibrating mechanism and rotary drum
A milling machine is disclosed, which machine includes a frame, a drive mechanism for advancing the machine across a surface to be milled, and a milling assembly mounted on the frame of the machine...
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5039170 |
Resonant beam suspension pads
A pad (22) for isolating a weight (4) from vibration of a resonant beam (8) in a resonant beam support system (6) for dissipating heat. The pad is constructed of a rubberlike material having ridges...
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4732506 |
Surface crushing apparatus
This invention describes an apparatus for breaking a hard surface such as a concrete road or bridge deck and essentially consists of a support for a torsional spring which is horizontally fixed to...
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4515408 |
Counterweight support for resonantly driven tool
The present invention provides an improved mechanism for positioning the weight relative to the resonant beam in resonantly driven impact systems.
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4511282 |
Pavement penetrating tool
An improved penetrating tool for pavement breakers is disclosed. The tool of the present invention has a flange with a striking surface which extends in the direction of motion of the vehicle. The...
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4444434 |
Continuous miner
A continuous miner includes a pair of resonant beams for driving a cutting blade rigidly secured to their lower anti-nodes. By mounting the beams so that they can pivot about both upper and lower...
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4402629 |
Resonantly driven pavement crusher
A pavement breaker including a mobile carrier vehicle is disclosed. A beam is provided having a resonant frequency with a pair of nodes spaced from the input and output ends of the beam and...
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4343514 |
Resonant tool driving system with gap
A sonic generator produces a reciprocating force that is transmitted to a tool by a resonant or nonresonant force transmitting member having an output that reciprocates about a neutral position...
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4340255 |
Resonantly driven vertical impact system
A surface impact system including a mobile carrier vehicle is disclosed. A beam is provided having a resonant frequency with a pair of nodes spaced from the input and output ends of the beam and...
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4330156 |
Resonant system speed control
A resonant work performing apparatus is disclosed which includes a resonant system which is vibratory in resonance at an unloaded resonant frequency. The resonant system has a vibratory input at a...
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4258956 |
Method and apparatus for driving a single transversely elongated tool with a plurality of force transmitting beams
An elongated tool is mounted for reciprocal motion on a support frame. A plurality of resonant force transmitting beams each having an input, an output, and at least one resonant node, are...
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4257648 |
Non-resonant cyclic drive system employing rectification of the cyclic output
A vibratory drive system for use in spalling a road surface, cutting rock, etc. Vibratory energy is generated by means of an orbiting mass oscillator, the output of which is rectified by means of a...
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4252376 |
Ripping tool driving apparatus
A ripping tool positioned below the earth's surface is driven by the output of a vibrating, preferably, resonant, force transmitting beam which has lateral dimensions smaller than those of the...
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4251111 |
Resonant beam for tool driving apparatus
A force transmitting, preferably resonant, beam having a pair of straight divergent legs meeting at a juncture. A work tool is located adjacent to the end of one leg, which is the beam output. A...
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4250760 |
Drive assembly for pavement planing apparatus
A pavement chipping tool uses a sonic oscillator which includes a housing integral with a resonant beam. The oscillator includes a rotating shaft journaled in two sets of bearings with an eccentric...
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4230369 |
Pavement planing method and apparatus
Asphalt or concrete pavement is removed from a road bed by an elongated cutter blade that extends in a downward and forward direction along a cutting plane to a cutting edge. The cutting plane...
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4229045 |
Resonant tool driving apparatus with tool stop
A sonic generator produces a reciprocating force that is transmitted to a tool by a resonant or nonresonant force transmitting member having an output that reciprocates in forward and backward...
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4053958 |
Surface preparation machine
This device consists primarily of a tool (blade, chisel, or sanding attachment) which is attached to a tool holder. The tool holder in turn is attached by a bearing to a shaft which passes thru a...
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3922017 |
Impact material fracturing device for excavators and the like
There is disclosed an impact material fracturing apparatus that is operated by a dynamic mechanical system designed to deliver large amounts of power in a compact system. The apparatus provides a...
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3778106 |
CONTROL MECHANISM FOR ROCK CUTTING EQUIPMENT
This invention relates to the control of the speed of traverse of a rock cutting machine utilizing an operating head in the form of a rotor carrying swinging hammers. The control is effected by...
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3695721 |
INTERNALLY VIBRATED ROLLER CUTTER APPARATUS FOR CUTTING EARTH AND ROCK
A roller tool, such as a chisel, especially for mining in which vibratory forces are developed inside the tool in the working direction thereof for enhancing the cutting effect thereof on a...
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3556209 |
RETRIEVABLE WIRELINE LUBRICATOR AND METHOD OF USE
A lubricator for use in running well tools suspended from a wireline in wells where the wellhead and blowout preventers are submerged and connected to a floating vessel by a marine conductor pipe....
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3527501 |
RESONANT VIBRATORY IMPULSE PLOW
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3497261 |
JOINT CUTTING MACHINES
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3463549 |
SONIC EARTH CUTTING MACHINE
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3437381 |
VEHICLE MOUNTED SONIC SHEARING DEVICE HAVING PROPULSION AIDING MEANS
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3336082 |
Method and apparatus for ripping rock by sonically vibratory teeth
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3278235 |
Vibratory apparatus for penetrating earth material and the like
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3232669 |
Sonic machine for cutting pavement
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3160216 |
Roof vibrating machine
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3030715 |
Sonic wave earth digging and moving machines
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2874948 |
Road surface coating breaker having a vibrated roller
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