Patent US4622988A successfully refreshed from Google Patents.
US4622988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid replenishing apparatus
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1985-05-20
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Granted: 1986-11-18
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Expires: 2005-05-20
Abstract
Abstract A liquid replenishing apparatus for supplying liquid raw material replenishment for liquid raw material of an article to at least one raw material tank, including a replenishment tank for storing the liquid raw material replenishment, a first pipe extending between the replenishment tank and the raw material tank, a second pipe for introducing pressurized gas into a space of the replenishment tank, a branch pipe communicating with the first and second pipes, a pressure regulator provided in the second pipe, and a flow regulator provided in the branch pipe.
Inventors
- 👤 Hiroaki Takimoto
- 👤 Tetsuo Miyajiri
- 👤 Tamio Turita
- 👤 Masanori Fujikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:08
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/10; C03B37/14; C03B37/01; C03B37/012; C03B37/014; C03B37/01413; C23; C23C; C23C16/00; C23C16/44; C23C16/448; G; G05; G05D; G05D9/00; G05D9/04; C03B2207/00; C03B2207/80; C03B2207/81; C03B2207/85; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/8593; Y10T137/86187; Y10T137/86196
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
241 words
A liquid replenishing apparatus for supplying liquid raw material replenishment for liquid raw material of an article to at least one raw material tank such that said raw material tank stores therein said liquid raw material, said liquid replenishing apparatus comprising: a replenishment tank for storing therein said liquid raw material replenishment, in which a space is defined above a liquid level of said liquid raw material replenishment; a first pipe extending between said replenishment tank and said raw material tank; a second pipe for introducing pressurized gas into said space so as to deliver said liquid raw material replenishment from said replenishment tank to said raw material tank through said first pipe; a branch pipe communicating between said first pipe and said second pipe; a pressure regulator which is provided in the course of said second pipe and which regulates the supply of said pressurized gas to said space so as to initiate without delay supply of liquid raw material replenishment from said replenishment tank to said raw material tank regardless of the amount of said liquid raw material replenishment remaining in said replenishment tank; and a first flow regulator which is provided in the course of said branch pipe, said first flow regulator being designed so as to permit discharge of said liquid raw material replenishment remaining in said first pipe into said raw material tank after supply of said liquid raw material replenishment to said raw material tank.
Claim 2
Dependent Claim
241 words
A liquid replenishing apparatus for supplying liquid raw material replenishment for liquid raw material of an article to at least one raw material tank such that said raw material tank stores therein said liquid raw material, said liquid replenishing apparatus comprising: a replenishment tank for storing therein said liquid raw material replenishment, in which a space is defined above a liquid level of said liquid raw material replenishment; a first pipe extending between said replenishment tank and said raw material tank; a second pipe for introducing pressurized gas into said space so as to deliver said liquid raw material replenishment from said replenishment tank to said raw material tank through said first pipe; a branch pipe communicating between said first pipe and said second pipe; a pressure regulator which is provided in the course of said second pipe and which regulates the supply of said pressurized gas to said space so as to initiate without delay supply of liquid raw material replenishment from said replenishment tank to said raw material tank regardless of the amount of said liquid raw material replenishment remaining in said replenishment tank; and a first flow regulator which is provided in the course of said branch pipe, said first flow regulator being designed so as to permit discharge of said liquid raw material replenishment remaining in said first pipe into said raw material tank after supply of said liquid raw material replenishment to said raw material tank.
Claim 3
Dependent Claim
60 words
A liquid replenishing apparatus as claimed in claim 1, which supplies said liquid raw material replenishment to a plurality of said raw material tanks and further comprises: a plurality of second flow regulators which are provided in the course of said first pipe such that said first pipe extends into said raw material tanks through said second flow regulators, respectively.
Claim 4
Dependent Claim
15 words
A liquid replenishing apparatus as claimed in claim 1, wherein said article is optical fiber.
Claim 5
Dependent Claim
15 words
A liquid replenishing apparatus as claimed in claim 2, wherein said article is optical fiber.
References Cited (Backward Citations)
US3698870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-17 | 1990-05-19 | 1990-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-17 | 1994-05-19 | 1994-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-17 | 1998-05-19 | 1998-11-18 | $7700.00 | Window Closed / Lapsed |