US4516596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for cleaning a three-way valve
Assignee: House Foods Corp
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Filing: 1984-06-22
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Granted: 1985-05-14
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Expires: 2004-06-22
Abstract
Abstract A system having first, second and third pipes connected respectively to first, second and third ports of a three-way valve. A by-pass pipe is connected at its one end to one of the second and third ports after disconnecting the associated one of the second and third pipes therefrom and at the other end to the other of the second and third pipes prior to the cleaning operation of the system.
Inventors
- 👤 Ko Sugisawa
- 👤 Kazuya Sekiguchi
- 👤 Masao Taguchi
- 👤 Masayuki Nakatani
- 👤 Hitoshi Iwata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:31
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/032; B08B9/0321; B08B9/0323; F; F16; F16K; F16K11/00; F16K11/02; F16K11/04; F16K11/044; F16K11/08; F16K11/087; F16K11/0873; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4259; Y10T137/8593; Y10T137/86493; Y10T137/86863; Y10T137/86879; Y10T137/86895
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
109 words
In a system having first, second and third pipes connected respectively to first, second and third ports of a three-way valve; a system for cleaning said three-way valve comprising a by-pass pipe adapted to be connected at its one end to one of the second and third ports after disconnecting the associated one of the second and third pipes therefrom and at its other end to the other of the second and third pipes, whereby a cleaning fluid can be made to flow in either direction between and only between said first pipe and said other of the second and third pipes depending on the position of the valve.
Claim 2
Dependent Claim
109 words
In a system having first, second and third pipes connected respectively to first, second and third ports of a three-way valve; a system for cleaning said three-way valve comprising a by-pass pipe adapted to be connected at its one end to one of the second and third ports after disconnecting the associated one of the second and third pipes therefrom and at its other end to the other of the second and third pipes, whereby a cleaning fluid can be made to flow in either direction between and only between said first pipe and said other of the second and third pipes depending on the position of the valve.
Claim 3
Dependent Claim
19 words
A system for cleaning a three-way valve according to claim 1, wherein said three-way valve is a compression-type valve.
Claim 4
Dependent Claim
19 words
A system for cleaning a three-way valve according to claim 1, wherein said three-way valve is a ball-type valve.
Claim 5
Dependent Claim
26 words
A system for cleaning a three-way valve according to claim 1, wherein said three-way valve is incorporated in a system for heat-sterilization of a liquid material.
Claim 6
Dependent Claim
26 words
A system for cleaning a three-way valve according to claim 2, wherein said three-way valve is incorporated in a system for heat-sterilization of a liquid material.
Claim 7
Dependent Claim
26 words
A system for cleaning a three-way valve according to claim 3, wherein said three-way valve is incorporated in a system for heat-sterilization of a liquid material.
References Cited (Backward Citations)
US1826954A
Cited
US2301976A
Cited
US2620106A
Cited
US2789009A
Cited
US3598139A
Cited
US4182374A
Cited
US4169486A
Cited
US4295667A
Cited
US4465210A
Cited
US4437686A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-13 | 1988-11-12 | 1989-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-13 | 1992-11-12 | 1993-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-13 | 1996-11-12 | 1997-05-14 | $7700.00 | Window Closed / Lapsed |