Pneumatic clamps and thermomagnetic duplication

Details Pneumatic clamps and thermomagnetic duplication Pneumatic clamps and thermomagnetic duplication

1978-10-27

1980-07-15

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Record copying

Contact transfer

226 95, G11B 586, G11B 1560

Patent

active

042131596

ABSTRACT:
A pneumatic clamp is disclosed for use in thermomagnetic duplication systems. The clamp comprises a nip member having a web-guiding surface with at least one passageway, means for connecting that passageway to a source of pressurized gas, and means for urging the nip member toward a roller whereby the pressurized gas exiting the passageway(s) will (a) cause a web or webs disposed between that surface and a roller to be pressed against the roller, (b) exert a back pressure urging the web-guiding surface away from the roller, and (c) form an air bearing between the nip member and the web or webs.

REFERENCES:
patent: 3632898 (1972-01-01), Slade et al.
patent: 3824617 (1974-07-01), Kobayashi et al.
patent: 3876860 (1975-04-01), Nomura et al.
IBM Tech. Disc. Bull., Marrs, Sink to Control Noise in an Externally Pressured Air Bearing, vol. 10, No. 11, Apr. 1968, pp. 1710-1711. _

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