Conveyors: power-driven – Conveyor section – Thrower
Reexamination Certificate
2007-12-04
2007-12-04
Dillon, Jr., Joe (Department: 3651)
Conveyors: power-driven
Conveyor section
Thrower
C406S099000, C415S090000, C415S126000, C198S718000, C198S723000
Reexamination Certificate
active
11384797
ABSTRACT:
A bulk materials pump feeder having a housing and a rotating drive rotor for transferring material from an inlet to an outlet of the housing. The drive rotor has a hub. Drive disks extend away from the hub toward a housing inner wall. Three structural features of the feeder reduce the tendency of material to jam between the drive rotor and the housing or other stationary parts. First, the distance between the circumferential edges of the drive disks and the housing inner wall increases from the inlet to the outlet in the direction of rotation of the drive rotor. Second, a low-friction brush seal disposed on the periphery of the drive disks seals the area between the periphery of the drive disks and the inner wall. Finally, a materials scraper having a flexible tip is mounted in the housing and extends into the drive rotor between the drive disks.
REFERENCES:
patent: 1061142 (1913-05-01), Tesla
patent: 2632399 (1953-03-01), Hyre
patent: 2868351 (1959-01-01), Hegmann
patent: 3245613 (1966-04-01), Jonakin
patent: 3787093 (1974-01-01), Hanselmann et al.
patent: 3920116 (1975-11-01), Butler
patent: 4516674 (1985-05-01), Firth
patent: 4826401 (1989-05-01), Clark et al.
patent: 4988239 (1991-01-01), Firth
patent: 5051041 (1991-09-01), Firth
patent: 5186604 (1993-02-01), Iorio et al.
patent: 5190140 (1993-03-01), Buschbom
patent: 5355993 (1994-10-01), Hay
patent: 5356280 (1994-10-01), Ponzielli
patent: 5402876 (1995-04-01), Hay
patent: 5485909 (1996-01-01), Hay
patent: 5497873 (1996-03-01), Hay
patent: 5533650 (1996-07-01), Conrad et al.
patent: 5551553 (1996-09-01), Hay
patent: 6135730 (2000-10-01), Yoshioka
patent: 6213289 (2001-04-01), Hay et al.
patent: 6375412 (2002-04-01), Dial
patent: 6431831 (2002-08-01), Addie et al.
patent: 6523726 (2003-02-01), Tschantz
patent: 6575695 (2003-06-01), Miyamoto
patent: 0 544 621 (1993-06-01), None
patent: 0544621 (1993-06-01), None
patent: WO 96/24810 (1996-08-01), None
patent: WO 00/07912 (2000-02-01), None
International Search Report Dated Jul. 4, 2003.
Baer Timothy R.
Foley James T.
LandOfFree
Bulk material pump feeder with reduced disk jamming does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bulk material pump feeder with reduced disk jamming, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bulk material pump feeder with reduced disk jamming will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3872718