Bulk material pump feeder with reduced disk jamming

Details Bulk material pump feeder with reduced disk jamming Bulk material pump feeder with reduced disk jamming

2007-11-29

2011-12-27

Crawford, Gene (Department: 3651)

Conveyors: power-driven

Conveyor section

Thrower

C406S099000, C415S090000, C415S126000, C198S718000, C198S723000

Reexamination Certificate

active

08083051

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: 2876471 (1959-03-01), Kraemer
patent: 2919054 (1959-12-01), Waller
patent: 3245613 (1966-04-01), Jonakin
patent: 3787093 (1974-01-01), Hanselmann et al.
patent: 3920116 (1975-11-01), Butler
patent: 4194841 (1980-03-01), Tadmor
patent: 4213709 (1980-07-01), Valsamis
patent: 4289319 (1981-09-01), Hold et al.
patent: 4402616 (1983-09-01), Valsamis et al.
patent: 4413913 (1983-11-01), Hold et al.
patent: 4421412 (1983-12-01), Hold et al.
patent: 4516674 (1985-05-01), Firth
patent: 4597491 (1986-07-01), Conklin
patent: 4826401 (1989-05-01), Clark et al.
patent: 4988239 (1991-01-01), Firth
patent: 5029875 (1991-07-01), Spain et al.
patent: 5051041 (1991-09-01), Firth
patent: 5186604 (1993-02-01), Iorio et al.
patent: 5190140 (1993-03-01), Buschbom
patent: 5223199 (1993-06-01), Ponzielli
patent: 5355993 (1994-10-01), Hay
patent: 5356280 (1994-10-01), Ponzielli
patent: 5381886 (1995-01-01), Hay
patent: 5402876 (1995-04-01), Hay
patent: 5427283 (1995-06-01), Whittaker et al.
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: 6250513 (2001-06-01), Haas
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: 2003/0190198 (2003-10-01), Bauer et al.
patent: 2004/0028485 (2004-02-01), Bauer et al.
patent: 0 467 842 (1992-01-01), None
patent: 0 544 621 (1993-05-01), None
patent: 52-129776 (1977-10-01), None
patent: S62-26334 (1987-02-01), None
patent: 2-79320 (1990-06-01), None
patent: 8-511499 (1996-12-01), None
patent: H08-511499 (1996-12-01), None
patent: WO 96/24810 (1996-08-01), None
patent: WO 00/07912 (2000-02-01), None
patent: WO 03/087580 (2003-10-01), None
Office Action of pending Japanese Patent Application No. 2003-584500.
Internationl Search Report.
Office Action from U.S. Appl. No. 11/546,077 dated Apr. 10, 2009.
Office Action dated Jun. 8, 2010 issued in connection with JP Patent Application No. 521059/2006; 6 pages.
English translation of Office Action dated Jun. 8, 2010 issued in connection with JP Patent Application No. 521059/2006; 6 pages.
Korean Office Action dated Mar. 18, 2010 for Korean Patent Application No. 10-2009-7026598 and a machine translation of the Office Action to English.

Affiliated with

Also associated with

Rating

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.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4254238