U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Rotary feeder for blanks

Patent 5028044 Issued on July 2, 1991. Estimated Expiration Date: Icon_subject January 17, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2568604

2827287

3385595

3416786

3521879

3650525

3720409

Rotary transfer mechanism
Patent #: 3937458
Issued on: 02/10/1976
Inventor: Langen

Device for picking up semi-rigid sheet-like elements from a magazine and transferring them onto a conveyor
Patent #: 4194442
Issued on: 03/25/1980
Inventor: Martelli

Facing ply separator
Patent #: 4283047
Issued on: 08/11/1981
Inventor: Blessing

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Inventor

Application

No. 465511 filed on 01/17/1990

US Classes:

271/91, Plural, relatively-moving suction members271/95, Having additional movement271/101With moving segments supporting remainder of pack

Examiners

Primary: Bollinger, David H.

Attorney, Agent or Firm

Foreign Patent References

  • 420214 CH 03/22/1967

International Class

B65H 003/40

Foreign Application Priority Data

1986-10-31 DE

Abstract

In order to increase considerably the output of a rotary feeder (6) for removing individual blanks (1) from a stack (2), the invention proposes that the speed of the rotary movement of rotary suckers (7) is slowed down while they are being pressed against the blank (5) that is to be removed. This retardation operation is brought about by a special gear unit that drives a rotor (12) to which the rotary suckers (7) are attached.

Other References

  • Power Drives: Classified with a View to Promoting Inventions, G. Vander Haeghen (Second Edition, 1957), p. 12
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