U.S. patents available from 1976 to present.
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Method and apparatus for detecting and eliminating cigarettes with loose filter tips during cigarette manufacturing

Patent 5232100 Issued on August 3, 1993. Estimated Expiration Date: Icon_subject April 16, 2012. 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

3543927

Inventor

Application

No. 869583 filed on 04/16/1992

US Classes:

209/537, Fluid or vacuum sensing means controls separating means73/49.8Clamp, plug, or sealing feature

Examiners

Primary: Olszewski, Robert P.
Assistant: Noland, Kenneth

Attorney, Agent or Firm

International Class

B07C 005/00

Abstract

An apparatus and method for detecting and eliminating cigarettes having loose filter tips whereby the tobacco rod end of a filter cigarette is held in place and a pre-set separating force is exerted on the filter to see if the filter is secured properly to the tobacco rod; and, if not, the filter and tobacco rod are rejected. A rotatable, splitable drum assembly is provided with a first and second vacuum source and the rotatable, splitable drum assembly is splitable into first and second segments. The drum is provided with longitudinally extending grooves therein which continually extend onto the first and second segments. Each groove is sized to receive a filter tip cigarette therein and each groove is also in vacuum communication with the first and second vacuum source. The first segment of the drum is coupled with the tobacco rod end of a filter tip cigarette by the first vacuum and the second segment of the drum is coupled with the filter of the filter tip cigarette by the second vacuum.

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