Cleaning and liquid contact with solids – Processes – Using solid work treating agents
Reexamination Certificate
1999-11-23
2001-03-13
Spisich, Mark (Department: 1744)
Cleaning and liquid contact with solids
Processes
Using solid work treating agents
C015S003000, C015S102000, C015S256520
Reexamination Certificate
active
06200392
ABSTRACT:
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an improved apparatus for cleaning dust and other surface particulate contaminants from material in sheet form.
BACKGROUND OF THE INVENTION
This invention is an improvement to the sheet cleaning apparatus described in U.S. Pat. No. 5,349,714, the entire contents of which are incorporated herein by reference. These apparatus are typically arranged in a printed circuit board production line, with other, very expensive machines. When the sheet cleaning apparatus needs servicing, typically to clean the sheet cleaning rollers (
52
,
54
,
56
,
58
, shown e.g. in FIG.
8
), the apparatus must be disassembled to remove the rollers, or the operator must clean the rollers in place. With either technique, considerable time is required for this maintenance procedure, idling not only the sheet cleaning apparatus but the other, very expensive machines on the production line.
It would therefore be advantageous to provide a sheet cleaning apparatus which can be quickly serviced to minimize the machine down time.
SUMMARY OF THE INVENTION
To overcome the foregoing problems, a sheet cleaning apparatus is described, having one or more sets of cleaning rollers, wherein the rollers are integrated into a removable cartridge assembly. Couplers are provided at roller shaft ends to connect to the roller drive. The cartridge assembly is held in a slide carriage, permitting the cartridge assembly to be readily removed from the apparatus by sliding the carriage out, and lifting the cartridge out from the slide carriage. With this arrangement, the down time for the sheet cleaning apparatus is minimized, since the sheet cleaning apparatus can be provided with two cartridges, and the cartridge needing maintenance can simply be quickly removed and replaced with a fresh cartridge. The production line can quickly be put back into operation, and the removed cartridge can be serviced off line for subsequent use.
REFERENCES:
patent: 1022510 (1912-04-01), Seaborne
patent: 1189633 (1916-07-01), Shue
patent: 1199424 (1916-09-01), Robinson
patent: 1857633 (1932-05-01), Gramsa
patent: 2791788 (1957-05-01), Hausdorf
patent: 2983353 (1961-05-01), Vilmerding
patent: 3053368 (1962-09-01), Klahn
patent: 3297223 (1967-01-01), Bueker
patent: 3609020 (1971-09-01), Kelly
patent: 3778139 (1973-12-01), Kelly
patent: 3807616 (1974-04-01), Hope et al.
patent: 4009047 (1977-02-01), Lindsay
patent: 4018555 (1977-04-01), Thettu
patent: 4033497 (1977-07-01), Przygocki
patent: 4211580 (1980-07-01), Vowles
patent: 4358194 (1982-11-01), Krehbiel
patent: 4420241 (1983-12-01), Kastl et al.
patent: 4637088 (1987-01-01), Badaracco et al.
patent: 4690535 (1987-09-01), Kubata et al.
patent: 4739358 (1988-04-01), Takahashi et al.
patent: 4982469 (1991-01-01), Nishiwaki
patent: 5251348 (1993-10-01), Corrado et al.
patent: 5349714 (1994-09-01), Korbonski et al.
patent: 5423104 (1995-06-01), West
patent: 5425813 (1995-06-01), Ernst et al.
patent: 214741 (1987-03-01), None
Audio Technica brochure describing Audio Technica's TCN 600 range of machines.
Teknek brochure (1pg) re “Minilab Cleaner”.
extract (12 pgs) from an Audio Technica brochure describing Audio Technica's TCN 600 range of machines, and details regarding a Teknek machine (3 pgs) said to be installed in the US on Oct. 16, 1990 (HDCM record sheet re HDCM 1500 P/2/110, Serial No. 1726 (1 pg), p. 15 entitled “Pneumatics” (1 pg), and Teknek Electronics Ltd. schematic dated Nov. 13, 1990, re CM 1500 (1 pg)).
Teknek brochure (1 pg) re “Minilab Cleaner”.
Color Images said to be of Teknek 1830 machine (7 images).
Roberts Larry K.
Spisich Mark
Systems Division Incorporated
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