| Patent application number | Description | Published |
|---|
| 20090252554 | ROLLER SCREED WITH DUAL-DRIVE POWER UNIT - A powered roller screed ( | 10-08-2009 |
| 20100183370 | POWERED ROLLER SCREED WITH RISER WHEEL - A rotating cylinder cement screeding system having a drive assembly and handle at one end for powering and controlling the screeding system. The rotating cylinder may be defined by one or more tubular screed roller sections of varying lengths, thereby allowing a user to customize the length of the system to match a specific cement pour. Further, each tubular screed roller section may be supplied with a male and female end for interlocking with each other and for receiving a variety of add-on attachments. At least one riser assembly may be interconnected to a drive assembly end and/or a non-driven end of the rotating cylinder cement screeding system. The riser assembly may elevate the rotating cylinder a distance above a finished slab to prevent the rotating cylinder from contacting the finished slab during a screeding operation. | 07-22-2010 |
| 20100189500 | POWER ROLLER SCREED WITH MULTIPLE SCREED ROLLERS - A rotating cylinder cement screeding system having a drive assembly and handle at one end for powering and controlling the screeding system. The rotating cylinder is made of tubular screed rollers of varying lengths allowing a user to customize the length of the system to match a specific cement pour. Further, each tubular screed roller is supplied with a male and female end for interlocking with each other and for receiving a variety of add on attachments. The rotating cylinder may also be equipped with a constant velocity type U-joint to allow the rotating cylinder to flex and thus, allow for pours with crowns or valleys, as need by the cement installer. | 07-29-2010 |
| 20110188930 | POWERED ROLLER SCREED WITH CURB ATTACHMENT - A powered roller screed with a curb attachment is disclosed. The powered roller screed may include a screed roller that is offset (e.g., vertically) from one or more curb rollers used by the curb attachment. In one embodiment, the amount of offset between the screed roller and each such curb roller is adjustable. Generally, each curb roller used by the curb attachment may engage and roller along an upper wall of a curb as screeding operations are conducted on poured concrete alongside the curb. | 08-04-2011 |
| 20120045282 | ROLLER SCREED WITH DUAL-DRIVE POWER UNIT - A powered roller screed ( | 02-23-2012 |
| Patent application number | Description | Published |
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| 20090236807 | METHODS AND APPARATUS FOR SUSPENDING VEHICLES - Embodiments of the invention generally relate to methods and apparatus for use in vehicle suspension. Particular embodiments of the invention relate to methods and apparatus useful for variable spring rate and/or variable damping rate vehicle suspension. In one embodiment, a shock absorber for a vehicle includes a gas spring having first and second gas chambers. The first chamber is utilized during a first travel portion of the shock absorber and the first and second chambers are both utilized during a second portion of travel. The shock absorber further includes a fluid isolated damper for regulating the speed of travel throughout both portions of travel. | 09-24-2009 |
| 20100044975 | VEHICLE SUSPENSION DAMPER - A vehicle suspension damper for providing a variable damping rate. The vehicle suspension damper comprises a first damping mechanism having a variable first threshold pressure, a second damping mechanism having a second threshold pressure, and a compressible chamber in communication with a damping fluid chamber, wherein the second damping mechanism is responsive to a compression of said compressible chamber. | 02-25-2010 |
| 20100244340 | METHODS AND APPARATUS FOR COMBINED VARIABLE DAMPING AND VARIABLE SPRING RATE SUSPENSION - Pressure-sensitive vales are incorporated within a dampening system to permit user-adjustable tuning of a shock absorber. In one embodiment, a pressure-sensitive valve includes an isolated gas chamber having a pressure therein that is settable by a user. | 09-30-2010 |
| 20100308516 | APPARATUS AND METHODS FOR A VEHICLE SHOCK ABSORBER - A method and apparatus for a vehicle shock absorber comprising a main damper cylinder, a first reservoir and a second reservoir. One embodiment includes a first operational mode where both reservoirs are in fluid communication with the cylinder. In a second operational mode, only one reservoir communicates with the cylinder during fluid evacuation from the cylinder. In each mode, rebound from either or both reservoirs may travel through a single, user-adjustable metering device. | 12-09-2010 |
| 20110174582 | METHODS AND APPARATUS FOR VARIABLE DAMPING ADJUSTER - Methods and apparatus for a damper adjustment assembly that comprises an adjuster having a first detent at a first axial location, and a second detent at a second axial location. The assembly may further comprise a housing having a keeper for engaging the first and second detents. The method may comprise rotating the adjuster within the housing, and engaging the keeper with the first detent at the first axial location. The method may further comprise further rotating the damping adjuster within the housing and engaging the keeper with the second detent at the second axial location on the adjuster. | 07-21-2011 |
| 20110215551 | METHODS AND APPARATUS FOR VEHICLE SUSPENSION HAVING MULTIPLE GAS VOLUMES - A method and apparatus for a vehicle suspension system gas spring. In one embodiment, a vehicle suspension system gas spring includes a compressible main gas chamber and an additional volume combinable with the main chamber to change a gas spring rate of the system. In one embodiment, a low friction piston seal is created by a flexible seal member. | 09-08-2011 |
| 20120080279 | METHODS AND APPARATUS FOR SAG ADJUSTMENT - A method and apparatus for adjusting the sag setting of a vehicle suspension are disclosed. An integrated damper/gas spring shock absorber includes a bleed port located at a position on a gas spring cylinder corresponding to a desired sag setting. The gas spring may be over pressurized to a pressure above the expected operating pressure of the gas spring. The vehicle may then be loaded with the normal operating load, partially compressing the shock absorber. Opening the bleed port allows gas to vent from the gas spring, further compressing the shock absorber until a piston in the gas spring closes the bleed port from the inner surface of the gas spring cylinder. A sleeve may be inserted over the gas spring cylinder, the sleeve including one or more sealing elements that seal the bleed port from the outer surface of the gas spring cylinder during normal operation. | 04-05-2012 |
