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Patent US4153532A successfully refreshed from Google Patents.
US4153532A
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US
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Apparatus for disassembly of a plural cell electrolyzer
Assignee: Dow Chemical Co
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Filing: 1977-12-30
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Granted: 1979-05-08
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Expires: 1997-12-30
Abstract
Abstract A cell frame transfer cart for vertical and horizontal displacement of a segment of a plural cell electrolyzer is comprised of spaced main and secondary platforms, a vertical displacement member disposed intermediate the platforms, and a support member for supporting the main platform and permitting horizontal displacement of a selected segment of a plural cell electrolyzer when the vertical displacement member is actuated. An assembly including the present transfer cart, and a method for disassembly of a plural cell electrolyzer, are also described.
Inventors
- 👤 Robert H. Fitch
- 👤 Bruce E. Kurtz
- 👤 Noel Y. Rothmayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:55
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/12; B66C1/16; C; C25; C25B; C25B9/00; C25B9/70
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
100 words
A cell frame transfer cart for vertical and horizontal displacement of a segment of a plural cell electrolyzer comprising: (a) a main platform; (b) a secondary platform; (c) vertical displacement means intermediate said main platform and said secondary platform comprising a plurality of air-actuated bladder members disposed in mutually overlapping sets, wherein the centerline of a first set passes at least tangent to the load-bearing area of the adjacent set; and, (d) support means for supporting said main platform and for permitting horizontal displacement of a selected segment of a plural cell electrolyzer when said vertical displacement means are actuated.
Claim 2
Dependent Claim
100 words
A cell frame transfer cart for vertical and horizontal displacement of a segment of a plural cell electrolyzer comprising: (a) a main platform; (b) a secondary platform; (c) vertical displacement means intermediate said main platform and said secondary platform comprising a plurality of air-actuated bladder members disposed in mutually overlapping sets, wherein the centerline of a first set passes at least tangent to the load-bearing area of the adjacent set; and, (d) support means for supporting said main platform and for permitting horizontal displacement of a selected segment of a plural cell electrolyzer when said vertical displacement means are actuated.
Claim 3
Dependent Claim
22 words
The transfer cart of claim 1, wherein there are four of said bladder members disposed in two of said mutually overlapping sets.
Claim 4
Dependent Claim
16 words
The transfer cart of claim 1, wherein said support means comprises a plurality of air bearings.
Claim 5
Dependent Claim
34 words
The transfer cart of claim 1, wherein said support means comprises a plurality of air bearings and wherein each of said bladder members is supported withing the load-bearing area of a corresponding air bearing.
Claim 6
Dependent Claim
13 words
In combination with a plural cell electrolyzer, the transfer cart of claim 4.
Claim 7
Dependent Claim
53 words
An assembly for removal of a segment of a plural cell electrolyzer, comprising (a) the transfer cart of claim 4; (b) modularization means for stabilizing segments of a plural cell electrolyzer on opposing sides of the segment selected for removal; and, (c) removal means for removal of a selected segment of said electrolyzer.
Claim 8
Dependent Claim
62 words
The assembly of claim 6, wherein said modularization means comprises: (a) apertures in each of the cell frames constituting said electrolyzer; (b) grip bars having spaced apertures, wherein the spacing between apertures in said bars corresponds to that between apertures in adjacent cell frames; and, (c) grip pins inserted through the apertures in said bars into the apertures in said cell frames.
Claim 9
Dependent Claim
52 words
The assembly of claim 7, wherein said removal means comprises: (a) a pair of lifting bars, each of which has a length corresponding to the length of said selected segment and each of which includes an upturned lip; and, (b) notches in each cell within said selected segment for receiving said lip.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-07 | 1982-11-06 | 1983-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-07 | 1986-11-06 | 1987-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-07 | 1990-11-06 | 1991-05-08 | $7700.00 | Window Closed / Lapsed |