US3783666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for fabricating lithium anodes
Assignee: Hawker Eternacell Inc
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Filing: 1971-12-01
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Granted: 1974-01-08
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Expires: 1991-12-01
Abstract
Abstract An apparatus and method for rolling and laminating highly malleable metals such as lithium. A plastic belt is interposed between the rollers and the lithium during the rolling operation to prevent the lithium from adhering to the roller surfaces.
Inventors
- 👤 M Rosansky
- 👤 B Jagid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:46
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/04; H01M4/0402; H01M4/0404; B; B21; B21B; B21B3/00; H01M4/043; H01M4/0435; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S72/00; Y10S72/70; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1741; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49936
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
119 words
A method for rolling a foil of a highly malleable metal such as lithium by the use of a pair of spaced metal rollers having a gap defined therebetween, which comprises the steps of passing a first endless plastic belt into said gap and over the surface of one of said rollers, passing a second endless plastic belt over the other of said rollers, and moving said metal foil in the gap between said rollers and between confronting portions of said first and second endless belts, whereby said foil is compressed by the action of said rollers without adhering to said rollers, maintaining each of said plastic belts at a predetermined tension, and moving said belts through said gap.
Claim 2
Independent Claim
119 words
A method for rolling a foil of a highly malleable metal such as lithium by the use of a pair of spaced metal rollers having a gap defined therebetween, which comprises the steps of passing a first endless plastic belt into said gap and over the surface of one of said rollers, passing a second endless plastic belt over the other of said rollers, and moving said metal foil in the gap between said rollers and between confronting portions of said first and second endless belts, whereby said foil is compressed by the action of said rollers without adhering to said rollers, maintaining each of said plastic belts at a predetermined tension, and moving said belts through said gap.
Claim 3
Dependent Claim
19 words
The method of claim 1, further comprising the step of arranging said belt in the form of a serpentine.
Claim 4
Independent Claim
134 words
An apparatus for rolling and laminating a pair of sheets or foils of lithium, said apparatus comprising a pair of upper and lower spaced metal rollers having a gap defined therebetween for receiving therein said sheets or foils, a first endless plastic belt having a portion passing over the lower peripheral surface of said upper roller, a second endless plastic belt having a portion passing over the upper peripheral surface of said lower roller in confronting relationship with the lower peripheral surface of said upper roller, means for passing said lithium sheets into said gap and between said confronting portions of said first and second plastic belts, whereby said sheets are compressed and laminated between said rollers without adhering to said rollers, and means for maintaining each of said belts at a predetermined tension.
Claim 5
Independent Claim
134 words
An apparatus for rolling and laminating a pair of sheets or foils of lithium, said apparatus comprising a pair of upper and lower spaced metal rollers having a gap defined therebetween for receiving therein said sheets or foils, a first endless plastic belt having a portion passing over the lower peripheral surface of said upper roller, a second endless plastic belt having a portion passing over the upper peripheral surface of said lower roller in confronting relationship with the lower peripheral surface of said upper roller, means for passing said lithium sheets into said gap and between said confronting portions of said first and second plastic belts, whereby said sheets are compressed and laminated between said rollers without adhering to said rollers, and means for maintaining each of said belts at a predetermined tension.
Claim 6
Dependent Claim
36 words
The apparatus of claim 3, further comprising a base, and a plurality of rollers rotatably mounted on said base, said belt being passed over said plurality of rollers and arranged in the form of a serpentine.
Claim 7
Dependent Claim
49 words
The apparatus of claim 4, in which said tension maintaining means comprises resilient means secured at one end to said base, and an arm pivotally mounted on said base and carrying one of said plurality of rollers, the other end of said resilient means being secured to said arm.
Claim 8
Dependent Claim
36 words
The apparatus of claim 3 further comprising a rotatably mounted idler roller, a portion of said belt being passed over said idler roller, said idler roller providing for transverse movement of said belt through said gap.
Claim 9
Dependent Claim
52 words
The apparatus of claim 6, further comprising a base supporting said pair of spaced rollers, an arm pivotably secured to said base at one end and carrying said idler roller, said tension maintaining means comprising resilient means attached at one end to said base and at its other end to said arm.
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |