US4055201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansible fabric for fluid dispensing application
Assignee: EIDP Inc
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Filing: 1976-08-16
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Granted: 1977-10-25
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Expires: 1996-08-16
Abstract
Abstract A fabric in a tubular shape is provided suitable for slipping over an expansible member which can be filled with fluid to thereby expand the expansible member and the tubular shape of the fabric, the fabric being expansible by at least 200% and having a uni-directional recovery force to provide the force to dispense the fluid from the expansible member, the fabric being made of elastomer yarn providing the recovery force and yarn in engagement with the elastomer yarn to maintain the fabric position of the elastomer yarn so as to prevent blow out of the expansible member between the yarn of the fabric during expansion of the expansible member.
Inventors
- 👤 John Rayford Fowler
- 👤 Edward Merrick Hogan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:41
CPC Classifications
D; D04; D04B; D04B1/00; D04B1/14; D04B1/18; B; B65; B65D; B65D83/00; B65D83/771; B65D83/7711; D03; D03D; D03D15/00; D03D15/50; D03D15/56; D03D3/00; D03D3/02; D04B21/00; D04B21/14; D04B21/18; D04C; D04C1/00; D04C1/02; B65D2231/00; B65D2231/001; B65D2231/004
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
164 words
An expansible fabric suitable for disposition about a fluid-containing expansible member in a dispensing container for providing the force to dispense said fluid from said expansible member and thus from said container, said fabric being expansible by at least 200% and having a unidirectional recovery force to provide the force to dispense said fluid, said fabric comprising elastomer yarn providing said unidirectional recovery force, said recovery force being at least 750 g per cm of fabric width at 100% elongation of said fabric to provide a pressure of at least 0.15 atm, said elastomer yarn being present in said fabric at least 20,000 denier per cm of fabric width in the cross direction to the elastomer yarn, and yarn in engagement with said elastomer yarn to maintain the position of said elastomer yarn in said fabric during its expansion and recovery to prevent blow out of said expansible member between the yarn of said fabric upon the filling of said member with said fluid.
Claim 2
Dependent Claim
164 words
An expansible fabric suitable for disposition about a fluid-containing expansible member in a dispensing container for providing the force to dispense said fluid from said expansible member and thus from said container, said fabric being expansible by at least 200% and having a unidirectional recovery force to provide the force to dispense said fluid, said fabric comprising elastomer yarn providing said unidirectional recovery force, said recovery force being at least 750 g per cm of fabric width at 100% elongation of said fabric to provide a pressure of at least 0.15 atm, said elastomer yarn being present in said fabric at least 20,000 denier per cm of fabric width in the cross direction to the elastomer yarn, and yarn in engagement with said elastomer yarn to maintain the position of said elastomer yarn in said fabric during its expansion and recovery to prevent blow out of said expansible member between the yarn of said fabric upon the filling of said member with said fluid.
Claim 3
Dependent Claim
40 words
The fabric of claim 1 wherein said fabric is of tubular shape and one end thereof is constricted to prevent blow out of said expansible member throgh said end of said tubular shape upon filling said member with said fluid.
Claim 4
Dependent Claim
26 words
The fabric of claim 2 wherein said tubular shape is radially expansible and has a circumference in the relaxed state of from 1.5 to 12 cm.
Claim 5
Dependent Claim
26 words
The fabric of claim 2 wherein said tubular shape is longitudinally expansible and has a length in the relaxed state of from 1.0 to 9.4. cm.
Claim 6
Dependent Claim
15 words
The fabric of claim 1 wherein said fabric is of tubular shape which is flat.
Claim 7
Dependent Claim
13 words
The fabric of claim 1 wherein the fabric elongation is at least 275%.
Claim 8
Dependent Claim
16 words
The fabric of claim 1 wherein the denier of said elastomer yarn is at least 8000.
Claim 9
Dependent Claim
31 words
The fabric of claim 1 wherein said elastomer yarn is present in said fabric at least 50,000 denier per cm of fabric width in the cross direction to the elastomer yarn.
Claim 10
Dependent Claim
20 words
The fabric of claim 1 wherein the second-mentioned yarn forms a loop around said elastomer yarn to maintain said position.
Claim 11
Dependent Claim
9 words
The fabric of claim 1 as a woven fabric.
Claim 12
Dependent Claim
10 words
The fabric of claim 1 as a warp knit fabric.
Claim 13
Dependent Claim
30 words
The fabric of claim 11 wherein said elastomer yarn is present in every course of said fabric and the direction of expansion of said fabric is in the coursewise direction.
Claim 14
Dependent Claim
35 words
The fabric of claim 11 wherein the second-mentioned yarn is present as chain stitches running transverse to the direction of expansion of said fabric and said elastomer yarn is laid in coursewise in said fabric.
Claim 15
Dependent Claim
19 words
The fabric of claim 1 wherein said elastomer yarn constitutes at least 65% of the weight of said fabric.
Claim 16
Dependent Claim
16 words
The fabric of claim 1 wherein said recovery force is at least 1000 g per cm.
Claim 17
Dependent Claim
13 words
The fabric of claim 1 wherein said pressure is at least 0.4 atm.
Claim 18
Dependent Claim
13 words
The fabric of claim 1 wherein said pressure is at least 0.8 atm.
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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) | 1980-10-24 | 1981-04-25 | 1981-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-24 | 1985-04-25 | 1985-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-24 | 1989-04-25 | 1989-10-25 | $7700.00 | Window Closed / Lapsed |