Patent US3871394A successfully refreshed from Google Patents.
US3871394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for treating articles arranged in containers with organic solvents
Assignee: THEGERSTROMS ROSTFRIA AB
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Filing: 1973-05-24
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Granted: 1975-03-18
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Expires: 1993-05-24
Abstract
Abstract There is disclosed a device for treating and especially for degreasing solid articles with a liquid organic solvent. The device comprises a housing which has an inlet opening and an outlet opening at opposite sides and the bottom part of which constitutes a receptacle for the treatment liquid. The housing has mounted therein a holder pivotal about a transverse axis adjacent to the outlet opening and also rotatable about its lengthwise axis. Perforated containers for articles to be treated are successively fed into the holder and discharged therefrom after treatment. While within the holder the containers are subjected to the action of the solvent by dipping the holder into the treatment liquid and also exposing it to the solvent in vaporized form.
Inventors
- 👤 Stig Rune Thegerstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:29
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02; C23G5/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
210 words
A device for treating solid articles with a fluid organic solvent in continuous operation, said device comprising in combination: a housing having an inlet opening and an outlet opening at opposite ends, the bottom part of said housing constituting a receptacle for treatment fluid; closure means for selectively closing and opening the inlet and outlet openings; a container for articles to be treated, said container including wall openings for ingress and egress of treatment fluid; an elongate holder for accommodating the container therein, said holder having openings for passage of treatment fluid and container inlet and outlet openings at its ends, said holder being disposed within the housing; first mounting means supporting the end of the holder adjacent to the outlet opening of the housing pivotal about an axis transverse of the length of the holder, and second mounting means supporting the holder rotatable about its lengthwise axis; and drive means for selectively pivoting the holder between a horizontal position and a downwardly slanted position, the holder in its horizontal position being in alignment with the inlet and outlet openings of the housing for feeding containers into the holder and discharging the same therefrom and in its lowered position dipping part of its length into the bath in the housing.
Claim 2
Independent Claim
210 words
A device for treating solid articles with a fluid organic solvent in continuous operation, said device comprising in combination: a housing having an inlet opening and an outlet opening at opposite ends, the bottom part of said housing constituting a receptacle for treatment fluid; closure means for selectively closing and opening the inlet and outlet openings; a container for articles to be treated, said container including wall openings for ingress and egress of treatment fluid; an elongate holder for accommodating the container therein, said holder having openings for passage of treatment fluid and container inlet and outlet openings at its ends, said holder being disposed within the housing; first mounting means supporting the end of the holder adjacent to the outlet opening of the housing pivotal about an axis transverse of the length of the holder, and second mounting means supporting the holder rotatable about its lengthwise axis; and drive means for selectively pivoting the holder between a horizontal position and a downwardly slanted position, the holder in its horizontal position being in alignment with the inlet and outlet openings of the housing for feeding containers into the holder and discharging the same therefrom and in its lowered position dipping part of its length into the bath in the housing.
Claim 3
Dependent Claim
65 words
A device for treating solid articles according to claim 1 and comprising loading means coacting with the housing at the inlet end thereof for pushing successive containers through the inlet opening of the housing into the holder for treatment of the articles therein and for simultaneously pushing a container with treated articles therein out of the holder and through the outlet opening of the housing.
Claim 4
Dependent Claim
48 words
A device for treating solid articles according to claim 2 and further comprising conveying means contiguous with the inlet and the outlet opening of the housing for feeding successive containers to the inlet end of the housing and removing containers discharged at the outlet end of the housing.
Claim 5
Dependent Claim
59 words
A device for treating solid articles according to claim 1 wherein said holder comprises at its inlet end one-way retaining means permitting movement of successive containers into the holder through said inlet end but blocking leaving of containers through said holder end thereby preventing sliding of containers out of the holder when it is in its downwardly slanted position.
Claim 6
Dependent Claim
47 words
A device for treating solid articles according to claim 1 wherein said closure means comprise actuating means responsive to activation for opening the closure means upon being engaged by a container and for closing the closure means upon passage of said container through the respective housing opening.
Claim 7
Dependent Claim
59 words
A device for treating solid articles according to claim 1 wherein a partition wall divides said receptacle, said wall being slanted so as to accommodate said holder in its downwardly slanted position, and heating means for heating treatment fluid in the compartment adjacent to the pivotally mounted end of the holder for effecting vaporization of fluid in said compartment.
Claim 8
Dependent Claim
43 words
A device for treating solid articles according to claim 6 and comprising cooling means disposed above the bottom of said heatable compartment, said cooling means limiting the rise of vapors to a selected level above the receptacle bottom by condensation of the vapors.
Claim 9
Dependent Claim
29 words
A device for treating solid articles according to claim 1 and comprising exhaust means communicating with said housing for exhausting fumes released within the housing by the treatment fluid.
Claim 10
Dependent Claim
55 words
A device for treating solid articles according to claim 1 wherein said drive means for rotating said holder about its lengthwise axis comprises an outer cage pivotal about said transverse axis but secured against rotation, an inner cage lengthwise disposed within said outer cage, and bearing rollers journaling the inner cage within the outer cage.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |