US3900339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for washing a vessel in a hermetically closed chamber
Assignee: Individual
•
Filing: 1972-07-07
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Granted: 1975-08-19
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Expires: 1992-07-07
Abstract
Abstract A method of washing vessels, for example ampules, wherein a vessel is placed in a closed chamber, the chamber and the vessel are filled with steam or vapor, and with the neck of the vessel immersed in a washing liquid, the pressure of the steam or vapor in the chamber is increased, which leads to filling of the vessel with the washing liquid, and then the steam or vapor is cooled until it condenses, which leads to the removal of the washing liquid from the vessel.
Inventors
- 👤 Nikolai Andreevich Filipin
- 👤 Jury Vladimirovich Alexander
- 👤 Jury Alexandrovich Poddubny
- 👤 Valentin Sergeevic Mozhzhukhin
- 👤 Petr Petrovich Neugodov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:09
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/08; B08B9/20; B08B9/22; B01; B01L; B01L13/00; B01L13/02; B01L3/00; B01L3/50; B01L3/508; B01L3/5082
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
157 words
A METHOD OF WASHING VESSEL WITH AN OPEN NECK, COMPRISING: A. PLACING A VESSEL IN A HERMETICALLY CLOSED CHAMBER WITH ITS NECK FACING DOWNWARDLY. B. FILLING SAID CHAMBER AND THE INTERNAL SPACE OF SAID VESSEL WITH STEAM BY FEEDING THE STEAM INTO THE CHAMBER TO EXPEL AIR THEREFROM AND SURROUND THE VESSEL WITH STEAM, C. FILLING THE CHAMBER WITH WASHING LIQUID TO A LEVEL ABOVE THE NECK OF THE VESSEL, D. AGAIN INTRODUCING STEAM INTO SAID CHAMBER THIS TIME AT A SUFFICIENTLY HIGH TEMPERATURE AND PRESSURE TO INCREASE THE PRESSURE OF THE STEAM IN THE VESSEL AND CAUSE CONDENSATION OF THIS STEAM WHEREBY THE VESSEL BECOMES FILLED WITH THE WASHING LIQUID WHICH REPLACES THE THUS CONDENSED STEAM AND E. CONDENSING THE STEAM IN SAID CHAMBER AROUND THE VESSEL BY COOLING THE STEAM IN THE CHAMBER WHICH REDUCES THE PRESSURE WITHIN THE VESSEL TO EFFECT BOILING OF THE WASHING LIQUID INSIDE SAID VESSEL AND ITS CONSEQUENT REMOVAL THEREFROM.
Claim 2
Independent Claim
157 words
A METHOD OF WASHING VESSEL WITH AN OPEN NECK, COMPRISING: A. PLACING A VESSEL IN A HERMETICALLY CLOSED CHAMBER WITH ITS NECK FACING DOWNWARDLY. B. FILLING SAID CHAMBER AND THE INTERNAL SPACE OF SAID VESSEL WITH STEAM BY FEEDING THE STEAM INTO THE CHAMBER TO EXPEL AIR THEREFROM AND SURROUND THE VESSEL WITH STEAM, C. FILLING THE CHAMBER WITH WASHING LIQUID TO A LEVEL ABOVE THE NECK OF THE VESSEL, D. AGAIN INTRODUCING STEAM INTO SAID CHAMBER THIS TIME AT A SUFFICIENTLY HIGH TEMPERATURE AND PRESSURE TO INCREASE THE PRESSURE OF THE STEAM IN THE VESSEL AND CAUSE CONDENSATION OF THIS STEAM WHEREBY THE VESSEL BECOMES FILLED WITH THE WASHING LIQUID WHICH REPLACES THE THUS CONDENSED STEAM AND E. CONDENSING THE STEAM IN SAID CHAMBER AROUND THE VESSEL BY COOLING THE STEAM IN THE CHAMBER WHICH REDUCES THE PRESSURE WITHIN THE VESSEL TO EFFECT BOILING OF THE WASHING LIQUID INSIDE SAID VESSEL AND ITS CONSEQUENT REMOVAL THEREFROM.
Claim 3
Dependent Claim
25 words
A method according to claim 1, wherein the steam in the chamber is cooled in step (e) by injecting a cooling fluid into the chamber.
Claim 4
Dependent Claim
14 words
A method according to claim 2, wherein the cooling fluid is a washing liquid.
Claim 5
Dependent Claim
80 words
A method according to claim 1, wherein the chamber and internal space of the vessel are initially filled with steam in step (b) by feeding steam into the chamber to expel air therefrom, then cooling the steam around the vessel to condense the steam and reduce the pressure in the chamber whereby air is evacuated from the vessel, and then again introducing steam into the chamber which now fills the evacuated vessel and renders the same ready for step (c).
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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |