Patent US3667625A successfully refreshed from Google Patents.
US3667625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dunnage device
Assignee: Engineered Fabrics Corp
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Filing: 1970-08-05
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Granted: 1972-06-06
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Expires: 1990-08-05
Abstract
Abstract An inflatable, bladderless dunnage device of economical construction for shoring merchandise in a storage compartment. The member includes a unitary body and valve means connected therewith. The body is formed of a laminate of pressureretaining, flexible material including a layer or sheet of flexible polymeric material and a layer of open mesh textile fabric covering at least substantially the entire outer surface of the polymeric material layer. The polymeric material fills the openings or interstices of the fabric layer to form a bond therewith capable of withstanding at least low to intermediate pressure when the member is inflated. Preferably the polymeric material is at least substantially air impervious and the textile fabric layer is preferably of a leno weave construction.
Inventors
- 👤 George A Lucas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:19
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/02; B65D81/05; B65D81/051; B65D81/052; B60; B60P; B60P7/00; B60P7/06; B60P7/065
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
18 words
The member as claimed in claim 1 wherein the fabric layer is of a straight leno weave construction.
Claim 2
Dependent Claim
91 words
a cloth layer of open weave textile fabric material disposed in substantially a coplanar relationship with the outer surface of said sheet of polymeric material and covering the entire outer surface of said sheet with the polymeric material filling and extending through the interstices of the cloth layer to form a bond therewith capable of withstanding a pressure of at least 1 psi when said device is inflated to control the expansion of the polymeric material; and B. valve means operably connected with said body for inflating and deflating said device.
Claim 3
Dependent Claim
18 words
The member as claimed in claim 1 wherein the fabric layer is of a reverse leno weave construction.
Claim 4
Dependent Claim
37 words
The member as claimed in claim 1 wherein said body is formed of opposed plies of said pressure retaining material with at least a portion of the peripheral outer edges thereof sealed to form a pressure-tight seam.
Claim 5
Dependent Claim
59 words
The member as claimed in claim 4 wherein said body further includes a strip of flexible material extending substantially around the entire interior periphery of the inflatable member and fitting into the crotch-like contour formed by said body adjacent said sealed outer edges thereof to provide reinforcement therefor with said member thereby capable of withstanding increased pressure during inflation.
Claim 6
Dependent Claim
46 words
The member as claimed in claim 1 wherein said layer of flexible polymeric material is composed of at least one substantially fluid-impervious elastomer and said textile fabric layer is composed of at least one material selected from the group consisting of cotton, nylon, rayon or polyester.
Claim 7
Dependent Claim
23 words
The member as claimed in claim 6 wherein the flexible polymeric material is a butyl elastomer and the textile fabric material is nylon.
Claim 8
Dependent Claim
51 words
An inflatable dunnage device for shoring merchandise in a storage compartment, said device comprising: A. an inflatable body of unitary construction formed of opposed laminated plies of pressure-retaining flexible material with at least a portion of the peripheral outer edges thereof sealed to form a pressure-tight seam, each said ply including:
Claim 9
Dependent Claim
18 words
The device as claimed in claim 8 wherein the cloth layer is of a straight leno weave construction.
Claim 10
Dependent Claim
18 words
The device as claimed in claim 8 wherein the cloth layer is of a reverse leno weave construction.
Claim 11
Dependent Claim
74 words
The device as claimed in claim 8 wherein said seam is formed around the entire peripheral outer edges thereof and a generally V-shaped strip of flexible fabric material extends substantially around the entire interior periphery of the inflatable device fitting into the crotch-like contour formed by said body adjacent said sealed outer edges thereof to provide reinforcement therefor with said device thereby capable of withstanding pressures of up to about 4 psi during inflation.
Claim 12
Dependent Claim
49 words
The device as claimed in Claim 8 wherein said flexible polymeric material is at least one elastomer selected from the group consisting of butyl, neoprene and acrylonitrile rubber and said textile fabric material is at least one material selected from the group consisting of cotton, nylon, rayon or polyester.
Claim 13
Dependent Claim
23 words
The device as claimed in Claim 12 wherein said flexible polymeric material is a butyl elastomer and said textile fabric material is nylon.
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |