Patent US3620813A successfully refreshed from Google Patents.
US3620813A
Expired / Lapsed
US
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Method of treating workpieces in a treating fluid
Assignee: Udylite Corp
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Filing: 1968-11-12
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Granted: 1971-11-16
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Expires: 1988-11-12
Abstract
Abstract An apparatus and method for simultaneously treating and conveying containerlike workpieces in which the workpieces are introduced and entrained in aligned orientation in a confined stream of a selected treating fluid and are subsequently extracted therefrom and whereafter, if desired, the workpieces are successively introduced into separate succeeding confined streams of alternative selected treating fluids to effect a multiple stage treatment thereof.
Inventors
- 👤 Louis J Minbiole Jr
- 👤 John W Neumann
- 👤 Chester G Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:48
CPC Classifications
C; C23; C23G; C23G3/00; B; B65; B65G; B65G49/00; B65G49/02; B65G49/04; B65G49/0409; B65G49/0436; B65G49/0495; C23F; C23F1/00; C23F1/08; C25; C25D; C25D17/00; C25D17/16; C25D17/28
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
25 words
The method as defined in claim 1, including the further step of recirculating of at least a portion of said treating fluid to said stream.
Claim 2
Dependent Claim
54 words
The method as defined in claim 1, including the further steps of forming a plurality of separate confined streams each composed of a separate treating fluid and successively introducing a workpiece into and extracting a workpiece from each of said separate streams in a preselected sequence for performing a plural treatment on the workpiece.
Claim 3
Dependent Claim
49 words
The method as defined in claim 1, including the further step of guiding the path of travel of said stream in order that the point at which a workpiece is introduced into said stream is located remotely from the point at which a workpiece is extracted from said stream.
Claim 4
Dependent Claim
49 words
The method as defined in claim 1, including the further step of guiding the path of travel of said stream in order that the point at which a workpiece is introduced into said stream is located adjacent to the point at which a workpiece is extracted from the stream.
Claim 5
Dependent Claim
40 words
The method as defined in claim 1, including the further step of introducing at least a portion of said treating fluid into said stream at a point downstream from the point at which a workpiece is introduced into said stream.
Claim 6
Dependent Claim
25 words
The method as defined in claim 1, including the further step of replenishing said treating fluid to maintain the composition thereof within a preselected range.
Claim 7
Dependent Claim
23 words
The method as defined in claim 1, including the further step of controlling the temperature of said treating fluid within a preselected range.
Claim 8
Dependent Claim
15 words
The method as defined in claim 1, in which said treating fluid is a liquid.
Claim 9
Dependent Claim
15 words
The method as defined in claim 1, in which said treating fluid is a gas.
Claim 10
Dependent Claim
16 words
The method as defined in claim 1, in which said treating fluid is an aqueous solution.
Claim 11
Dependent Claim
16 words
The method as defined in claim 1, in which said treating fluid is an organic solution.
Claim 12
Dependent Claim
16 words
The method as defined in claim 1, in which said treating fluid is a liquid emulsion.
Claim 13
Dependent Claim
20 words
The method as defined in claim 1, in which said treating fluid is a two-phase mixture of liquid and gas.
Claim 14
Dependent Claim
17 words
The method as defined in claim 1, in which said treating fluid includes solid particles suspended therein.
Claim 15
Dependent Claim
27 words
The method as defined in claim 1, in which said treating fluid comprises a cleaning fluid for performing a cleaning treatment of the surfaces of the workpiece.
Claim 16
Dependent Claim
28 words
The method as defined in claim 1, in which said treating fluid comprises an aqueous rinse solution for performing a rinse treatment of the surfaces of the workpiece.
Claim 17
Dependent Claim
26 words
The method as defined in claim 1, in which said treating fluid comprises a coating composition for depositing a coating on the surfaces of the workpiece.
Claim 18
Dependent Claim
29 words
The method as defined in claim 1, in which said treating fluid comprises a chemical conversion coating solution for forming a conversion coating on the surfaces of the workpiece.
Claim 19
Dependent Claim
23 words
The method as defined in claim 1, in which said treating fluid comprises a liquid for effEcting a chemical drying of the workpiece.
Claim 20
Dependent Claim
40 words
The method as defined in claim 3, including the further step of controlling the longitudinal velocity of said streams such that the velocity of any one separate stream is equal to or greater than the velocity of a preceding stream.
Claim 21
Dependent Claim
43 words
The method as defined in claim 1, in which the step of forming said confined stream having said helical flow pattern is performed in a manner to form a centrally extending vortex along at least a portion of the length of said stream.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |