US3613699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for degreasing objects by means of a solvent
Assignee: Uddeholms AB
•
Filing: 1969-07-29
•
Granted: 1971-10-19
•
Expires: 1989-07-29
Abstract
Abstract An apparatus for removing grease, oil and fat from articles consists of means for boiling a solvent so that the vapor fills a chamber in which the cool articles are placed. The wall of the chamber is designed as a lid which can be lifted for facilitating the insertion and removal of the articles. A spraying means for liquid solvent is arranged in the upper part of the treating chamber to spray liquid solvent over the articles.
Inventors
- 👤 Kur Anders Holm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:36
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02; C23G5/04
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
59 words
Apparatus according to claim 2, characterized by a magnetically controlled valve (19) in a supply conduit (18) for delivering coolant to the cooling pipes (16), a thermostat (21) in the upper part of the treating chamber (30) being arranged to emit a signal to open the valve (19) when the solvent steam has risen above the cooling pipes (16).
Claim 2
Dependent Claim
26 words
Apparatus according to claim 3, characterized by a timer (22) connected to the thermostat (21) and arranged to reclose the valve (19) after a predetermined period.
Claim 3
Dependent Claim
30 words
Apparatus according to claim 4, characterized in that the timer (22) is arranged after the termination of the predetermined period to start a motor (7) to raise the lid (11).
Claim 4
Dependent Claim
51 words
Apparatus according to claim 2, characterized in that stays attached to the lower part of said apparatus being arranged to support said means (16) for spraying liquid solvent, and said stays comprising tubes (18) in the form of cooling pipes for supplying cooling water to said means for spraying liquid solvent.
Claim 5
Dependent Claim
29 words
Apparatus according to claim 1, characterized in that said means for condensing the vapor of the boiling solvent comprising a portion of said wall means forming the liquid lock.
Claim 6
Dependent Claim
34 words
Apparatus according to claim 1, characterized in that a ventilation conduit (29) is arranged in communication with the top of the lid (11), and a fan (55) connected to the ventilation conduit. tubes (50)
Claim 7
Dependent Claim
54 words
Apparatus according to claim 7, characterized by a valve (14) operated supply conDuit (13) for supplying coolant to the wall means (9), and by a breaker (27) which is arranged to be actuated by the lid (11) to open the valve (14), suitably via a magnetic device (28), when the lid (11) is raised.
Claim 8
Dependent Claim
66 words
Apparatus according to claim 1, characterized in that the means for spraying liquid solvent consists of tubes (50) having nozzles and a pump (48) to supply liquid solvent to the tubes, and that a thermostat (21) in the upper part of the treating chamber (30) is arranged to emit a signal to start the pump (48) when the solvent steam has risen above the tubes (50).
Claim 9
Dependent Claim
27 words
Apparatus according to claim 10, characterized by a timer (22) connected to the thermostat (21) and arranged to stop the pump (48) again after a predetermined period.
Claim 10
Dependent Claim
51 words
Apparatus according to claim 11, characterized in that the timer (22) is arranged, with a delay after the pump has stopped, to break the heat supply to the heating means (3), and after a delay to open the cooling water supply to a cooler (41) situated below the treating chamber (30).
Claim 11
Dependent Claim
36 words
Apparatus according to claim 1, characterized in that a ventilation means (66-68) is arranged in said wall means forming the liquid lock (8) to prevent steam from the solvent from coming out into the working premises.
Claim 12
Dependent Claim
23 words
Apparatus according to claim 1, characterized in that the lid (11) is connected at the top to a filter (58) containing active carbon.
Claim 13
Dependent Claim
36 words
Apparatus according to claim 14, characterized in that the filter (58) is provided with supply conduits (59,60) for steam and air and is connected to a cooler (62) and a separator (63) to recover the solvent.
Claim 14
Dependent Claim
41 words
Apparatus according to any of claims 1, characterized in that the lid (11) is arranged to actuate a safety breaker (70) which permits heat to pass to the heating means (3) only when the lid (11) is in its operating position.
References Cited (Backward Citations)
US2057177A
Cited
US1944607A
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US2243093A
Cited
US2564443A
Cited
US3111952A
Cited
US3316055A
Cited
GB1134278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |