{
  "abstract": "An end effector for porous-face vacuum end-of-arm tooling is described. The tool comprises a tool-change interface (10), a foam pad (12), a ejector (14), a isolation valve (16), a zone branch (18), and a pressure sensor (20), a blow-off valve (22). The arrangement addresses putting the workpiece down quickly without it sticking to the face, where a vented cup releases at the speed the circuit refills, and a light workpiece can stay stuck to a damp elastomer face long after the vacuum is gone. The description covers where the pulse is injected, when it is given relative to set-down, and how long it lasts. Every connection is stated with the medium it carries, and the operating sequence is given as conditions on named operations.",
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  "categories": [
    "robotics-automation/end-effectors/vacuum-grippers",
    "lifting-positioning-manipulation/vacuum-lifting/vacuum-safety-systems",
    "industrial-motion-power-transmission/fluid-power/vacuum-generation",
    "lifting-positioning-manipulation/vacuum-lifting/sealing-and-suction-pads"
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      "caption": "Block diagram of the tool, with the medium carried by each connection.",
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      "number": "FIG-001",
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    {
      "caption": "Elevation of the gripping face on its mounting.",
      "file": "figures/fig-002.svg",
      "number": "FIG-002",
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      "caption": "Signal path between the controlled elements and the cell controller.",
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  "keywords": [
    "blow-off valve",
    "ejector",
    "foam pad",
    "isolation valve",
    "pressure sensor",
    "tool-change interface",
    "zone branch",
    "fast release",
    "end of arm tooling",
    "sponge"
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  "language": "en",
  "license": {
    "name": "Creative Commons Attribution 4.0 International",
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  "publication_id": "OT-2026-000003778",
  "published_at": "2026-09-16T07:07:47.580326Z",
  "publisher": "Nebula Innovations Limited",
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  "supersedes": null,
  "title": "Porous face vacuum gripper, four zone face, common isolation valve, two stage ejector, pressure verified",
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}