{
  "abstract": "An end effector for vacuum end-of-arm tooling for robotic material handling is described. The tool comprises a mounting flange (10), a suction cup (12), a ejector (14), a blow-off valve (16). 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",
    "robotics-automation/end-effectors/compliance-devices"
  ],
  "extent": {
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    "paragraphs": 25,
    "words": 1518
  },
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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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  "keywords": [
    "blow-off valve",
    "ejector",
    "mounting flange",
    "suction cup",
    "fast release",
    "end of arm tooling",
    "oval",
    "rubber"
  ],
  "language": "en",
  "license": {
    "name": "Creative Commons Attribution 4.0 International",
    "url": "https://creativecommons.org/licenses/by/4.0/"
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  "publication_id": "OT-2026-000005803",
  "published_at": "2026-09-16T08:11:32.156361Z",
  "publisher": "Nebula Innovations Limited",
  "record_type": "disclosure",
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  "supersedes": null,
  "title": "Vacuum cup gripper, two stage ejector, pulsed blow off before set down, rubber cups",
  "uuid": "01a0a945-63b9-7dc6-a6c7-80f9a2b4b434"
}