Patent US4085255A successfully refreshed from Google Patents.
US4085255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water separation cell for removing the reaction water from the electrolyte of fuel cells and fuel cell batteries
Assignee: Siemens AG
•
Filing: 1977-02-22
•
Granted: 1978-04-18
•
Expires: 1997-02-22
Abstract
Abstract A water separation cell for removing the reaction water from the electrolyte of fuel cells and fuel cell batteries which comprise a liquid chamber bounded on at least one side by a porous diaphragm, and a gas chamber bounded by the diaphragm and a condensation surface adapted for cooling, in which the liquid chamber is subdivided into two chambers of different size which are arranged on top of each other with the upper, larger chamber serving as the electrolyte space and the lower, smaller chamber taking up the condensate which passes through the porous diaphragm into this chamber due to the pressure of a gas present in the gas chamber.
Inventors
- 👤 Burghard Grave
- 👤 Heinrich Gutbier
- 👤 Michael Deinzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:43
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/36; A; A61; A61B; A61B1/00; A61B1/005; A61B1/0051; A61B1/0055; H; H01; H01M; H01M8/00; H01M8/06; H01M8/0693; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
160 words
In combination with a fuel cell or a fuel cell battery, an improved water separation cell for removing the reaction water from the electrolyte of the fuel cell or fuel cell battery comprising: a. a vertically extending liquid chamber bounded on at least one side by a porous diaphragm; b. a gas chamber vertically disposed adjacent said liquid chamber of essentially the same height as said liquid chamber bounded by said diaphragm on one side and by a condensation surface adapted for cooling; and c. means disposed essentially horizontally dividing said liquid chamber into two chambers of different size which are arranged one on top of the other, the upper chamber being larger than the lower chamber and serving as an electrolyte chamber and the lower smaller chamber acting to take up condensate which passes from said gas chamber through the porous diaphragm into said lower small chamber due to the pressure of a gas present in said gas chamber.
Claim 2
Dependent Claim
160 words
In combination with a fuel cell or a fuel cell battery, an improved water separation cell for removing the reaction water from the electrolyte of the fuel cell or fuel cell battery comprising: a. a vertically extending liquid chamber bounded on at least one side by a porous diaphragm; b. a gas chamber vertically disposed adjacent said liquid chamber of essentially the same height as said liquid chamber bounded by said diaphragm on one side and by a condensation surface adapted for cooling; and c. means disposed essentially horizontally dividing said liquid chamber into two chambers of different size which are arranged one on top of the other, the upper chamber being larger than the lower chamber and serving as an electrolyte chamber and the lower smaller chamber acting to take up condensate which passes from said gas chamber through the porous diaphragm into said lower small chamber due to the pressure of a gas present in said gas chamber.
Claim 3
Dependent Claim
36 words
The improvement according to claim 1 wherein the area of the part of the diaphragm bounding the chamber for the condensate is about 5 to 20% of the area of the part bounding the electrolyte chamber.
Claim 4
Dependent Claim
11 words
The improvement according to claim 2 wherein said area is 10%.
Claim 5
Dependent Claim
37 words
The improvement according to claim 2 wherein said liquid chamber is enveloped by a frame and wherein the electrolyte chamber is separated from the chamber for the condensate by a bar which is part of said frame.
Claim 6
Dependent Claim
13 words
The improvement according to claim 4 wherein said frame is made of plastic.
Claim 7
Dependent Claim
21 words
The improvement according to claim 4 wherein said cross piece is curved in a direction toward the chamber for the condensate.
Claim 8
Dependent Claim
37 words
The improvement according to claim 1 wherein said liquid chamber is enveloped by a frame and wherein the electrolyte chamber is separated from the chamber for the condensate by a bar which is part of said frame.
Claim 9
Dependent Claim
13 words
The improvement according to claim 7 wherein said frame is made of plastic.
Claim 10
Dependent Claim
21 words
The improvement according to claim 7 wherein said cross piece is curved in a direction toward the chamber for the condensate.
References Cited (Backward Citations)
US3783107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-17 | 1981-10-17 | 1982-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-17 | 1985-10-17 | 1986-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-17 | 1989-10-17 | 1990-04-18 | $7700.00 | Window Closed / Lapsed |