Sheet feeding or delivering – Feeding – Separators
Patent
1989-10-18
1990-11-06
Davis, Jr., Albert W.
Sheet feeding or delivering
Feeding
Separators
271 33, 271106, 62 73, 62351, 165 61, 4147965, 4147969, B65H 308, B65H 320
Patent
active
049680188
ABSTRACT:
The invention relates to a device for separating, delivering, and depositing material blanks, for use in the textile industry or the like which improves heat transfer to the gripping surface in a device in which the heating device is arranged in such a way that it is protected from external forces. The device comprises a heatable gripping plate, which has a gripping surface and an expansion chamber adjacent thereto, in which a refrigerant is able to expand and thus cool the gripping plate to below the freezing point so that a material blank will freeze onto said gripping surface. The side of the chamber opposite the gripping surface is closed by a nonmetallic intermediate plate whose surfaces are essentially parallel to said gripping surface and can be coated with metal, and which intermediate plate has a noncoated surface with an electrical heating resistor arranged therein and a metal-coated surface that is in metallic connection with a plurality of webs that form a bridge for heat transfer from the intermediate plate to the gripping surface.
REFERENCES:
patent: 3611744 (1971-10-01), Sutz
patent: 4887858 (1989-12-01), Gazzarrini
Hoehne Klaus
Mertel Bernhard
Willenbacher Erich
Davis Jr. Albert W.
Pfaff Industriemaschinen GmbH
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