OpenTechnical
This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-5934723-A, on 10 August 1999. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000003181

Vacuum handling apparatus

Published
Permanent URL
Classification
Lifting, Positioning & Manipulation › Hoists and Cranes
Inventors
SCHMALZ KURT
Assignee
SCHMALZ J GMBH
Original source
US-5934723-A, the United States Patent and Trademark Office, 10 August 1999
Document SHA-256
4e81121d84f3cc37cb896e5bf64c296e24a08e77bc3269f90506da05910a7468

The present invention relates to a vacuum handling apparatus, having a suction gripper device which can be connected by means of a lifting hose to a vacuum-creating device and can be placed upon an object, in order to suck up the object for lifting or conveyance. The apparatus has a control valve for controlling the vacuum prevailing in the interior of the suction gripper device and in the lifting hose, in order to lift or lower the suction gripper device with a sucked-up object or the empty suction gripper device, or to deposit a sucked-up object. In order to make this apparatus easier to operate, without making its structure complex, the apparatus is designed in such a way that the control valve has a valve disc which can be rotated about a fixed axis relative to a bearing surface and has at least one control aperture, which control disc can be rotated by means of a rotary handle in such a way that the control aperture clears an increasing or decreasing effective flow cross-section with a ventilation aperture in the bearing surface, and further that the control disc can be lifted off the bearing surface in order to release a sucked-up object, or that a further ventilation aperture which can be closed or opened by a swivelling ventilation flap is provided in a wall of the apparatus.

Sheet 1
Sheet 1
Sheet 2
Sheet 2
Sheet 3
Sheet 3
Sheet 4
Sheet 4
Sheet 5
Sheet 5

Abstract

The present invention relates to a vacuum handling apparatus, having a suction gripper device which can be connected by means of a lifting hose to a vacuum-creating device and can be placed upon an object, in order to suck up the object for lifting or conveyance. The apparatus has a control valve for controlling the vacuum prevailing in the interior of the suction gripper device and in the lifting hose, in order to lift or lower the suction gripper device with a sucked-up object or the empty suction gripper device, or to deposit a sucked-up object. In order to make this apparatus easier to operate, without making its structure complex, the apparatus is designed in such a way that the control valve has a valve disc which can be rotated about a fixed axis relative to a bearing surface and has at least one control aperture, which control disc can be rotated by means of a rotary handle in such a way that the control aperture clears an increasing or decreasing effective flow cross-section with a ventilation aperture in the bearing surface, and further that the control disc can be lifted off the bearing surface in order to release a sucked-up object, or that a further ventilation aperture which can be closed or opened by a swivelling ventilation flap is provided in a wall of the apparatus.

1. Drawings

[0001]Sheet 1.

[0002]Sheet 2.

[0003]Sheet 3.

[0004]Sheet 4.

[0005]Sheet 5.

Publication information

Plain textMarkdownManifestIntegrity record

Citation

OpenTechnical Publication OT-2026-000003181, “Vacuum handling apparatus,” published September 15, 2026 at 19:45:03 UTC, https://opentechnical.org/p/OT-2026-000003181.

To cite specific content, add the paragraph or figure numbers.

Terms

This record reproduces a document published elsewhere and is provided for reference and study. Rights in the original remain with its owner. See the publication policy.