Cleaning and liquid contact with solids – Apparatus – Automatic controls
Patent
1993-05-21
1993-12-28
Coe, Philip R.
Cleaning and liquid contact with solids
Apparatus
Automatic controls
68209, 134111, 134113, 134200, 169 61, 454 56, B08B 302, B08B 1300
Patent
active
052730603
ABSTRACT:
A spray cleaning system is designed to use a flammable solvent, such as isopropyl alcohol, and includes safety features to maintain the concentration of solvent vapor within the cleaning chamber below a safe limit. The system includes a chamber for containing the article to be cleaned, a nozzle for directing a spray of solvent against the article, and a pump for supplying solvent to the nozzle. The chamber is ventilated with a flow of air to maintain the concentration of solvent vapor within the chamber below a predetermined safety limit, such as the lower explosive limit for the solvent, and the air is exhausted to create a negative pressure within the chamber. A sensor detects combustion or an explosion within the chamber. Additional sensors can be included to monitor leakage of solvent from the cleaning chamber or solvent supply tank. The flow of solvent to the nozzle is automatically halted in the event of combustion or explosion, or if solvent leakage is detected. A fire extinguishing system is also automatically triggered. Electrical continuity to ground is maintained among all of the components of the cleaning chamber as well as the solvent storage tank, pumps, and pipelines to mitigate static discharge.
REFERENCES:
patent: 3580261 (1971-05-01), Key
patent: 4101340 (1978-07-01), Rand
patent: 4132567 (1979-01-01), Blackwood
patent: 4187868 (1980-02-01), Rudolphi
patent: 4262430 (1981-04-01), Janson et al.
patent: 4390396 (1983-06-01), Koblenzer
patent: 4443269 (1984-04-01), Capella et al.
patent: 4561903 (1985-12-01), Blaul
patent: 4676261 (1987-06-01), Blaul
patent: 4688585 (1987-08-01), Vetter
patent: 4765413 (1988-08-01), Spector et al.
patent: 4832753 (1989-05-01), Cherry et al.
patent: 4865061 (1989-09-01), Fowler et al.
patent: 4886081 (1989-12-01), Blaul
patent: 4936922 (1990-06-01), Cherry
patent: 4940494 (1990-07-01), Petit et al.
patent: 4977688 (1990-12-01), Roberson, Jr. et al.
patent: 4993199 (1991-02-01), Hughes
patent: 5011542 (1991-04-01), Weil
patent: 5027841 (1991-07-01), Breunsbach et al.
patent: 5045120 (1991-09-01), Mittag et al.
patent: 5103846 (1992-04-01), Clark et al.
Hill, III Walter E.
Howard, Jr. John B.
Marts Kenneth P.
Skulborstad Dale J.
Coe Philip R.
Martin Marietta Corporation
LandOfFree
Alcohol spray cleaning system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Alcohol spray cleaning system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alcohol spray cleaning system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1536429