Coating processes – Solid particles or fibers applied
Reexamination Certificate
2005-07-05
2005-07-05
Parker, Fred J. (Department: 1762)
Coating processes
Solid particles or fibers applied
C427S174000, C427S346000, C427S348000, C427S369000
Reexamination Certificate
active
06913784
ABSTRACT:
A process of impregnating fine adsorbent particles such as carbon dust or APS silica gel powder into the micro-cavities of shaped fibers comprises the steps of continuously conveying shaped fibers with micro-cavities to a reservoir of the fine adsorbent particles. The fibers pass through the reservoir to thereby produce relative motion between the fibers and the particles. Additionally, impact forces are created between the shaped fibers and the fine particles to assist in impregnating the particles into the micro-cavities of the fibers. Any excess particles are removed from the fibers outside the reservoir, and subsequently the shaped fibers impregnated with fine adsorbent particles are collected for later use in filter applications such as cigarette filter and air filter applications, for example.
REFERENCES:
patent: 3595137 (1971-07-01), Molins et al.
patent: 4858629 (1989-08-01), Cundari
patent: 5057368 (1991-10-01), Largman et al.
patent: 5123373 (1992-06-01), Iyer et al.
patent: 5244614 (1993-09-01), Hagen
patent: 5328736 (1994-07-01), Charles et al.
patent: 5704966 (1998-01-01), Rohrbach et al.
patent: 5713971 (1998-02-01), Rohrbach et al.
patent: 5744236 (1998-04-01), Rohrbach et al.
patent: 5902384 (1999-05-01), Rohrbach et al.
patent: 6723378 (2004-04-01), Hrubesh et al.
Gao Qiong
Koller Kent B.
Scott George R.
Sherwood Tim
Thomas Charles E.
Connolly Bove & Lodge & Hutz LLP
Parker Fred J.
Philip Morris USA Inc.
LandOfFree
Continuous process for impregnating solid adsorbent... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Continuous process for impregnating solid adsorbent..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous process for impregnating solid adsorbent... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3430979