| Hydra-Lock Corporation Patent applications |
| Patent application number | Title | Published |
|---|
| 20110140328 | Hydrostatically Actuated Workholding Apparatus with High Expansion and Recovery Sleeve - A workholding apparatus includes a body, and a workholding sleeve composed of metal and carried by the body. A fluid chamber receives a fluid between the body and the workholding sleeve. Under fluid pressure, the sleeve is radially displaceable and recoverable to a high degree. For example, when displaced under fluid pressure, the sleeve experiences substantially complete and repeatable strain recovery of at least about 2% of its overall cross-sectional area. Preferably, the sleeve is composed of Nitinol. | 06-16-2011 |
| 20100253015 | FLUID-ACTUATED WORKHOLDER WITH A COLLET DRIVEN BY A SOFT AND THIN BLADDER - A workholder to hold a workpiece, including a main body partially defining a fluid chamber, and a bladder carried by the main body with an interference fit, further defining the fluid chamber, and composed of an 80 to 100 durometer Shore A scale hardness polymer of a 12:1 to 18:1 diameter-to-wall-thickness ratio. Annular seals may further define the fluid chamber, and are disposed radially between the bladder and main body and axially adjacent the fluid chamber, and are composed of a 60 to 80 durometer Shore A scale hardness polymer. A collet is carried and driven by the bladder for gripping engagement with the workpiece. | 10-07-2010 |
