Brushing – scrubbing – and general cleaning – Machines – For fruit – vegetables – meat or eggs
Patent
1993-10-26
1994-09-27
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Machines
For fruit, vegetables, meat or eggs
15 1, 15102, 15104002, B08B 1100
Patent
active
053497147
ABSTRACT:
Apparatus for cleaning foreign particles from the surface of sheets of material, such as printed circuit boards during fabrication processing. Two pairs of sheet cleaning rollers are located along the sheet path, and the sheet is passed through the nips between the pairs of rollers. The rollers have a surface tack sufficient to transfer the foreign particles from the surfaces of the sheet to the cleaning roller surfaces. Upper and lower roller cleaning rolls having surfaces of even greater surface tack are arranged in tangential contact with respective ones of the sheet cleaning rollers. The surfaces of the roller cleaning rolls have even greater surface tack, sufficient to transfer the foreign particles from the sheet cleaning rollers to the cleaning roll surfaces. An adjustable preload force is applied to each roller cleaning roll to urge each roll against the sheet cleaning roller surfaces. The adjustable preload force also controls the nip pressure between the cleaning rollers and the sheet surface improving the cleaning ability of the system. The apparatus further includes a system for preventing delamination of layers of the sheet. Endless belts are reeved about pulleys and about grooves formed in the sheet cleaning rollers, and provide a belt region remaining in contact with the sheet even after the region of the sheet has passed through the nip of the cleaning rollers. This prevents the outer layer of the sheet from lifting away from the body of the sheet.
REFERENCES:
patent: 4009047 (1977-02-01), Lindsay
patent: 4982469 (1991-01-01), Nishiwaki
Greenwood Eugene C.
Korbonski John A.
Roberts Edward L.
Systems Division Incorporated
LandOfFree
Sheet cleaning apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sheet cleaning apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sheet cleaning apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1258061