| Patent application number | Description | Published |
|---|
| 20090241485 | Lift Mechanism For Tooling That Acts On A Web In A Packaging Machine - A packaging apparatus has a lift mechanism to lower and raise a tool, such as a formation box that functions to form cavities in a web of flexible material. The lift mechanism has a series of arms, supported by belt driven carriages, which move in tandem to raise and lower the formation box. The arms are arranged into two sets such that when the arms within each set are moved closer to one another, the formation box is raised, and when the arms within each set are moved away from one another, the formation box is lowered. The common driving of all arms by a belt allows the indexing of the formation box to be well controlled. | 10-01-2009 |
| 20090241486 | Belt Driven Clamping Arrangement For Gripping And Advancing Web Material In A Packaging Machine - A packaging machine includes a clamping arrangement, composed of a series of clamps designed to grip and release a web of flexible material, and which are coupled to a belt that is advanced along a predetermined path to advance the web of flexible through the machine. The belt is made up of side-by-side belt portions that are spliced together in axially spaced locations by the clamps, to withstand the forces and stresses placed thereon as the web material is advanced. Each clamp is formed of an upper jaw member and a lower jaw member that are pivotably interconnected together, in combination with a guide member the guides movement of the belt through the machine. The belts are independently driven by operation of a pair of motors, which are synchronously operated in order to advance the opposite edges of the web material at the same rate of speed through the machine. | 10-01-2009 |
| 20100116348 | System And Method For Evacuating A Vacuum Chamber - A valve arrangement for a vacuum pump assembly selectively opens and closes communication between a vacuum pump, evacuation vessel, and a volume to be evacuated. The valve arrangement allows the evacuation vessel and any conduit connecting the vacuum pump and evacuation vessel to the volume to first be evacuated without providing a vacuum to the volume. The valve arrangement also allows the volume to be connected to the evacuation vessel but cut-off from the vacuum pump so that at initial stages of the evacuation process for the volume dead air contained within the volume may be communicated to the evacuation vessel rather than drawn out by the vacuum pump. Once the dead air, or portions thereof, has been removed from the volume, the valve arrangement may cut-off communication with the evacuation vessel, establish communication between the vacuum pump and the volume, and allow the vacuum pump to provide negative air pressure to the volume so that the volume may be evacuated. | 05-13-2010 |
| 20110138755 | Belt Driven Clamping Arrangement For Gripping And Advancing Web Material In A Packaging Machine - A packaging machine includes a clamping arrangement, composed of a series of clamps designed to grip and release a web of flexible material, and which are coupled to a belt that is advanced along a predetermined path to advance the web of flexible through the machine. The belt is made up of side-by-side belt portions that are spliced together in axially spaced locations by the clamps, to withstand the forces and stresses placed thereon as the web material is advanced. Each clamp is formed of an upper jaw member and a lower jaw member that are pivotably interconnected together, in combination with a guide member the guides movement of the belt through the machine. The belts are independently driven by operation of a pair of motors, which are synchronously operated in order to advance the opposite edges of the web material at the same rate of speed through the machine. | 06-16-2011 |
