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

Automatic tube processing apparatus

Patent 4671784 Issued on June 9, 1987. Estimated Expiration Date: Icon_subject November 12, 2005. 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

Re28872

1383839

2014706

2404161

2639647

2714412

3044367

3228224

3464327

3519050

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Inventor

Assignee

Application

No. 06/797128 filed on 11/12/1985

US Classes:

493/29, To actuate material advancing means279/155, Tool or workpiece ejector408/37, Coaxial, opposed tools493/21, To actuate timer493/22, To actuate cutting, breaking, tearing, or abrading means493/291, With surface treatment (e.g., polishing, burnishing, etc.)493/30, Responsive to machine element493/365, Rotary cutter74/813C, Control means82/125, Magazine type82/48Automatic and/or triggered control

Examiners

Primary: Schmidt, Frederick R.
Assistant: Terrell, William E.

Attorney, Agent or Firm

International Classes

B29C 31/00 (20060101)
B31F 1/00 (20060101)

Abstract

An automatic paper board tube reamer apparatus includes a tube index and feed assembly and a pair of tube end reamers. The reamers automatically simultaneously square the tube end surfaces and ream the internal diameter of each end of a tube aligned therewith by the feed assembly. The feed assembly automatically feeds the tube to the reamers and ejects the reamed tubes. The reamers and feed assembly operate alternatively and continuously to recycle damaged tubes fed thereto.

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