US3734108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning devices for chemical or electrochemical surface treatment plants
Assignee: Nordnero AB
•
Filing: 1971-12-08
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Granted: 1973-05-22
•
Expires: 1991-12-08
Abstract
Abstract A cleaning device for chemical or electro-chemical surface treatment plants, comprising different treatment tanks into which the material to be treated is immersed, uses a movable spray booth which is transported to a preselected tank and stops in a position above said tank. The material having its treatment finished in said tank is lifted up through the bottom of said spray booth and is sprayed with cleaning liquid inside it.
Inventors
- 👤 S Almegard
- 👤 H Ericson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:36
CPC Classifications
C; C25; C25D; C25D21/00; C25D21/08; B; B65; B65G; B65G49/00; B65G49/02; B65G49/04; B65G49/0409; B65G49/0436; B65G49/044; B65G49/045; B65G49/0454; B65G49/0459; C23; C23G; C23G3/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
74 words
A cleaning device for chemical or electro-chemical surface treatment plants comprising different treatment tanks into which the material to be treated is immersed, driving means for said cleaning device to move it to and above said treatment tanks one at a time, and lifting means to lift the material from said tank, said cleaning device including spray means for a cleaning liquid to spray above said tank said liquid onto the material lifted therefrom.
Claim 2
Dependent Claim
74 words
A cleaning device for chemical or electro-chemical surface treatment plants comprising different treatment tanks into which the material to be treated is immersed, driving means for said cleaning device to move it to and above said treatment tanks one at a time, and lifting means to lift the material from said tank, said cleaning device including spray means for a cleaning liquid to spray above said tank said liquid onto the material lifted therefrom.
Claim 3
Dependent Claim
40 words
A cleaning device as claimed in claim 1, in which the device includes a spray booth, the bottom of which is provided with an opening through which the material to be treated is taken into the spray booth from beneath.
Claim 4
Dependent Claim
28 words
A cleaning device as claimed in claim 2, said spray booth also being provided on its inner walls with nozzles connected to a tank containing the cleaning liquid.
Claim 5
Dependent Claim
21 words
A cleaning device as claimed in claim 3, said cleaning liquid tanks being arranged at the side of said treatment tanks.
Claim 6
Dependent Claim
47 words
A cleaning device as claimed in claim 3, said nozzles being connected to the respective cleaning liquid tank by means of a flexible tubing, said tubing by moving the spray booth from one treatment tank to another being moved from and to the corresponding cleaning liquid tanks.
Claim 7
Dependent Claim
33 words
A cleaning device as claimed in claim 5, said flexible tubing also being connected to a clean-water supply and having valve means to supply said nozzles with either cleaning liquid or clean water.
Claim 8
Dependent Claim
48 words
A cleaning device as claimed in claim 2, said spray booth being shaped to collect the quantity of the cleaning liquid which during the spraying does not hit the material, said quantity being returned to said cleaning liquid tank which at that moment is connected to said nozzles.
Claim 9
Dependent Claim
32 words
A cleaning device as claimed in claim 2, said spray booth having driving means which are the same as the one required for the transport of the material to preselected treatment tanks.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |