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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-6131973-A, on 17 October 2000. 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-2026-000003128

Vacuum transfer device

Published
Permanent URL
Classification
Material Handling › Conveying Systems
Inventors
BULLIED STEVEN J, TRUDEAU ALLEN E
Assignee
SIKORSKY AIRCRAFT CORP
Original source
US-6131973-A, the United States Patent and Trademark Office, 17 October 2000
Document SHA-256
94ebe25d709fb67dace9ca89851e7afd60a34b6c0de01b7668dfd20c86086c5b

A transfer device for picking up and placing resin preimpregnated composite plies. The transfer device includes a movable transfer head with a plurality of transfer feet movably mounted within it. Each transfer foot includes a support cage with a plurality of spaced posts extending between upper and lower ends. A mounting plate is located on the support cage. A pickup foot extends from the lower end of the support cage and has a channel formed through it which communicates with an opening in the lower end of the support cage. The pickup foot includes a tip end adapted to contact the resin preimpregnated composite ply. A valve is mounted within the support cage and includes a valve member located adjacent to the opening in the lower end of the support cage. The valve member is movable between a closed position and an open position. A spring surrounds at least a portion of the periphery of the transfer foot and biases the transfer foot into the transfer head. A pressure source supplies a pressurized medium to the valve for actuating the valve member. A stripper is preferably attached to the valve and actuatable in conjunction with the valve member for dislodging a composite ply from the tip end. An actuation assembly is mounted to the transfer foot and adapted to move the transfer foot with respect to the transfer head in response to a flow of pressurized air.

Abstract

A transfer device for picking up and placing resin preimpregnated composite plies. The transfer device includes a movable transfer head with a plurality of transfer feet movably mounted within it. Each transfer foot includes a support cage with a plurality of spaced posts extending between upper and lower ends. A mounting plate is located on the support cage. A pickup foot extends from the lower end of the support cage and has a channel formed through it which communicates with an opening in the lower end of the support cage. The pickup foot includes a tip end adapted to contact the resin preimpregnated composite ply. A valve is mounted within the support cage and includes a valve member located adjacent to the opening in the lower end of the support cage. The valve member is movable between a closed position and an open position. A spring surrounds at least a portion of the periphery of the transfer foot and biases the transfer foot into the transfer head. A pressure source supplies a pressurized medium to the valve for actuating the valve member. A stripper is preferably attached to the valve and actuatable in conjunction with the valve member for dislodging a composite ply from the tip end. An actuation assembly is mounted to the transfer foot and adapted to move the transfer foot with respect to the transfer head in response to a flow of pressurized air.

1. Drawings

[0001]Sheet 1.

[0002]Sheet 2.

[0003]Sheet 3.

[0004]Sheet 4.

Publication information

Citation

OpenTechnical Publication OT-2026-000003128, “Vacuum transfer device,” published September 15, 2026 at 19:34:34 UTC, https://opentechnical.org/p/OT-2026-000003128.

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Terms

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