US4140839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubelet pocket
Assignee: GOTTFRIED HAGEN AG
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Filing: 1978-05-10
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Granted: 1979-02-20
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Expires: 1998-05-10
Abstract
Abstract A tubelet pocket construction for holding the positive electrodes of accumulators and a method for making same comprises two pieces of a textile sheet material which are connected together by parallel longitudinal seams which define a plurality of parallel tubelets. The textile sheet material comprises an electrolyte-resistant nonwoven fabric which is reinforced by a woven or laid fabric of electrolyte-resistant fibers.
Inventors
- 👤 Harald Hoffman
- 👤 Dietmar Appel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:49
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/76; H01M4/765; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/131; Y10T428/1314; Y10T428/1352; Y10T428/1362; Y10T428/24; Y10T428/24744
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
89 words
A tubelet pocket construction for holding the positive electrodes of accumulators, comprising two pieces of a stiffened textile sheet material connected together by parallel longitudinal seams, defining a plurality of parallel substantially cylindrical shape retaining tubelets, and wherein the textile sheet material comprises an electrolyte-resistant nonwoven fabric which is reinforced by a woven fabric of electrolyte-resistant fibers connected to only the outside surface of the nonwoven fabric and thereby is disposed only on the outer surface of the tubelets, said woven fabric being in the form of monofil threads.
Claim 2
Dependent Claim
89 words
A tubelet pocket construction for holding the positive electrodes of accumulators, comprising two pieces of a stiffened textile sheet material connected together by parallel longitudinal seams, defining a plurality of parallel substantially cylindrical shape retaining tubelets, and wherein the textile sheet material comprises an electrolyte-resistant nonwoven fabric which is reinforced by a woven fabric of electrolyte-resistant fibers connected to only the outside surface of the nonwoven fabric and thereby is disposed only on the outer surface of the tubelets, said woven fabric being in the form of monofil threads.
Claim 3
Dependent Claim
34 words
The tubelet pocket construction of claim 1, characterized in that in the reinforcing fabric the count ratio of the warp threads to the filling threads being between 1 : 1 and 1 : 100.
Claim 4
Dependent Claim
61 words
The tubelet pocket construction of claim 2, wherein the count ratio of the warp threads to the filling threads is between 1 : 1 and 1 : 20, the reinforcing fabric has 1 to 3 threads per centimeter in at least one of the warp and filling directions and the textile sheet material has a permanent expansion between 1 and 10%.
Claim 5
Dependent Claim
17 words
The tubelet pocket construction of claim 3, wherein the reinforcing fabric is woven onto the sheet material.
Claim 6
Dependent Claim
17 words
The tubelet pocket construction of claim 3, wherein the reinforcing fabric is bonded onto the sheet material.
Claim 7
Dependent Claim
23 words
The tubelet pocket construction of claim 1, characterized in that the reinforcing is provided only by threads running perpendicular to the tubelet direction.
Claim 8
Dependent Claim
30 words
The tubelet pocket of construction claim 1 characterized in that the reinforcing fabric has 0.5 to 5 threads per centimeter, in at least one of the warp or filling directions.
Claim 9
Dependent Claim
33 words
The tubelet pocket construction of claim 1 characterized in that the textile sheet material used has a permanent expansion between 1 and 30%, upon a repeated loading of 200 N/5 cm strip width.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-19 | 1982-08-21 | 1983-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-19 | 1986-08-21 | 1987-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-19 | 1990-08-21 | 1991-02-20 | $7700.00 | Window Closed / Lapsed |