US4171716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for disposing spent chemical solutions from processor
Assignee: AB Dick Co
•
Filing: 1978-03-27
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Granted: 1979-10-23
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Expires: 1998-03-27
Abstract
Abstract The disclosure is a two-solution tray, each a substantial duplicate of the other, and each illustrating the principle of a chicken feeder supply, an overflow control that doubles as a drain cock and a sealed system drain container for ecologically safe disposal of spent chemicals.
Inventors
- 👤 Francis S. Szabo
- 👤 Helgard M. Kirsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:35
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/02; G03D3/06; Y; Y10; Y10T; Y10T137/00; Y10T137/7287
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
159 words
In an apparatus for chemically processing a web, said apparatus having a tray for holding a pool of liquid and means for holding a supply bottle inverted in position for maintaining a predetermined liquid level in the tray, the improvement in a chemical supply and disposal system, comprising: a flexible drain tube extending through a selected bottom portion of said tray; means for removably securing a drain container in an upright position below said tray; said tube extending a selected distance upwardly into said tray and thereby serving as a depth limiting overflow drain, and being capable of being deflected to lie against the tray bottom for draining the fluid from said tray into said container; whereby the means for holding a supply bottle and the means for securing a drain container are similarly configured, permitting emptied supply bottles to be used as drain containers, and whereby the spent chemical fluid is captured into the container for acceptable disposal.
Claim 2
Dependent Claim
159 words
In an apparatus for chemically processing a web, said apparatus having a tray for holding a pool of liquid and means for holding a supply bottle inverted in position for maintaining a predetermined liquid level in the tray, the improvement in a chemical supply and disposal system, comprising: a flexible drain tube extending through a selected bottom portion of said tray; means for removably securing a drain container in an upright position below said tray; said tube extending a selected distance upwardly into said tray and thereby serving as a depth limiting overflow drain, and being capable of being deflected to lie against the tray bottom for draining the fluid from said tray into said container; whereby the means for holding a supply bottle and the means for securing a drain container are similarly configured, permitting emptied supply bottles to be used as drain containers, and whereby the spent chemical fluid is captured into the container for acceptable disposal.
Claim 3
Dependent Claim
33 words
The apparatus of claim 1 wherein the means for holding and the means for securing are similarly configured by being similarly threaded, the supply bottle and drain container being cappable by threaded caps.
References Cited (Backward Citations)
US1825126A
Cited
US2578000A
Cited
US3173577A
Cited
US3137225A
Cited
US3858229A
Cited
US4012753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-10-22 | 1983-04-23 | 1983-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-22 | 1987-04-23 | 1987-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-22 | 1991-04-23 | 1991-10-23 | $7700.00 | Window Closed / Lapsed |